CN115940387A

CN115940387A - Power supply system of server and data center

Info

Publication number: CN115940387A
Application number: CN202211728323.3A
Authority: CN
Inventors: 蔡兵
Original assignee: XFusion Digital Technologies Co Ltd
Current assignee: Henan Kunlun Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-07

Abstract

The embodiment of the application provides a power supply system of a server and a data center, which relates to the technical field of servers, wherein the server comprises m first switch power supplies, n second switch power supplies, k third switch power supplies, a load circuit and a first controller; wherein, m first switching power supplies are connected in parallel; the n second switching power supplies are connected in parallel; k first switching power supplies are connected in parallel; the first controller is configured to: and if the power supply quantity of the new energy power generation module meets the power supply requirement of the load circuit, controlling the k third switch power supplies to supply power to the load circuit, so that the server can work normally, and the reliability of the server is improved while the operation cost is reduced.

Description

Power supply system of server and data center

Technical Field

The embodiment of the application relates to the technical field of servers, in particular to a power supply system of a server and a data center.

Background

With the rapid development of digital economy, the requirements of various industries on information transmission and sharing are increasing, the scale and the number of data centers providing infrastructure for information transmission and storage are continuously enlarged, a server is used as a core information processing unit of the data center, the workload of the server is influenced by businesses and shows the condition of large fluctuation, and when the power supply requirement of a short-term server exceeds the power supply capacity of the data center, overcurrent protection is caused, and the normal operation of the server is influenced.

Disclosure of Invention

The embodiment of the application provides a power supply system of a server and a data center, which is used for reducing operation cost and meeting the power supply requirement of the server at any time.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, a server is provided. The server comprises m first switching power supplies, n second switching power supplies, k third switching power supplies, a load circuit and a first controller; the m first switching power supplies are connected in parallel, and m is a positive integer greater than or equal to 1; the n second switching power supplies are connected in parallel, wherein n is a positive integer larger than or equal to 1, and the k first switching power supplies are connected in parallel, wherein k is a positive integer larger than or equal to 1; each first switching power supply comprises an alternating current input end, an output end and a control end, the alternating current input end of each first switching power supply is electrically connected with the first output end of the alternating current power distribution cabinet, and the output end of each first switching power supply is electrically connected with the load circuit; the control end of each first switching power supply is electrically connected with the corresponding control signal output end of the first controller; each second switching power supply comprises a direct current input end, an output end and a control end, the direct current input end of each second switching power supply is electrically connected with the first output end of the direct current power distribution cabinet, and the output end of each second switching power supply is electrically connected with the load circuit; the control end of each second switching power supply is electrically connected with the corresponding control signal output end of the first controller; each third switch power supply comprises a direct current input end, an output end and a control end, the direct current input end of each third switch power supply is electrically connected with the second output end of the direct current power distribution cabinet, and the output end of each third switch power supply is electrically connected with the load circuit; and the control end of each third switch power supply is electrically connected with the corresponding control signal output end of the first controller. For example: the first switching power supply, the second switching power supply and the third switching power supply are all Power Supply Unit (PSU), wherein the first switching power supply can convert the first alternating current output by the alternating current power distribution cabinet into direct current and then supply power to the load circuit; the second switching power supply can perform voltage conversion on the first direct current output by the direct current power distribution cabinet and then supply power to the load circuit; the third switch power supply can convert the voltage of the second direct current output by the direct current power distribution cabinet and then supply power to the load circuit.

The input end of the alternating current power distribution cabinet is electrically connected with the alternating current output end of the uninterruptible power supply, and the alternating current power distribution cabinet is used for outputting first alternating current to each first switching power supply; the first input end of the direct current power distribution cabinet is electrically connected with the direct current output end of the uninterruptible power supply, the second input end of the direct current power distribution cabinet is electrically connected with the output end of the first power supply device, and the direct current power distribution cabinet is used for outputting first direct current to each second switch power supply and outputting second direct current to each third switch power supply; the first input end of the first power supply device is used for accessing a second alternating current, the amplitude of the second alternating current is larger than that of the first alternating current, the second input end of the first power supply device is electrically connected with the new energy power generation module, the control end of the first power supply device is connected with the control end of the first controller, and the control end of the first power supply device is used for sending the power supply quantity of the first power supply device to the first controller; the control end of the new energy power generation module is electrically connected with the first controller, and the control end of the new energy power generation module is used for sending the power supply quantity of the new energy power generation module to the first controller.

The first controller is configured to: and determining that the power supply quantity of the new energy power generation module meets the power supply requirement of the load circuit, and controlling the k third switch power supplies to supply power to the load circuit.

In this embodiment, the first controller obtains the power supply amount of the new energy power generation module and the power supply requirement of the load circuit, and determines whether the power supply amount of the new energy power generation module can meet the power supply requirement of the load circuit, and if so, controls the k third switching power supplies to supply power to the load circuit, that is, the new energy power generation module supplies power to the load circuit. Meanwhile, each first switching power supply and each second switching power supply are in a hot backup state, namely the first switching power supplies and the redundant modules serving as the second switching power supplies for the load circuits ensure that the server works normally, and service interruption is avoided.

In some embodiments, determining that the power supply amount of the new energy power generation module meets the power supply requirement of the load circuit, and controlling the k third switching power supplies to supply power to the load circuit includes: the first controller is configured to: determining that the power supply quantity of the new energy power generation module meets the power supply requirement of a load circuit, and sending a first input voltage control signal to a control end of a first power supply device, wherein the first input voltage control signal is used for controlling the conduction between a second input end of the first power supply device and an output end of the first power supply device; controlling a first switching power supply to output a first direct current voltage, controlling a second switching power supply to output a second direct current voltage, and controlling a third switching power supply to output a third direct current voltage; the first direct current voltage and the second direct current voltage are less than the third direct current voltage.

In this embodiment, because the third dc voltage output by the third switching power supply is greater than the first dc voltage and the second dc voltage, when it is determined that the power supply amount of the new energy power generation module meets the power supply requirement of the load circuit, the third switching power supply provides the electric energy required by the load circuit, that is, the new energy power generation module serves as the power consumption energy of the server, so that the operation cost is reduced, and the normal operation of the server is ensured.

In some embodiments, the first controller is configured to: if the power supply quantity of the new energy power generation module cannot meet the power supply requirement of the load circuit, acquiring the power supply quantity of a first power supply device; determining that the total power supply quantity of the first power supply device and the new energy power generation module meets the power supply requirement of a load circuit, and sending a second input voltage control signal to a control end of the first power supply device; controlling a first switching power supply to output a first direct current voltage, controlling a second switching power supply to output a second direct current voltage, and controlling a third switching power supply to output a third direct current voltage; the first direct current voltage and the second direct current voltage are both smaller than the third direct current voltage.

In this embodiment, since both the first dc voltage output by the first switching power supply and the second dc voltage output by the second switching power supply are lower than the third dc voltage output by the third switching power supply, when it is determined that the total power supply amount of the first power supply device and the new energy power generation module meets the power supply requirement of the load circuit, the third switching power supply provides the electric energy required by the load circuit, that is, the first power supply device serves as the electric energy source of the server, so as to ensure the normal operation of the server.

In some embodiments, the first controller is configured to: and if the total power supply amount of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, controlling the third switch power supply and the first switch power supply or the third switch power supply and the second switch power supply to supply power to the load circuit.

In this embodiment, if the total power supply amount of the first power supply device and the new energy power generation module is less than the power supply amount required by the load circuit, the first controller determines that the total power supply amount of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, and then controls the third switching power supply and the first switching power supply or the third switching power supply and the second switching power supply to supply power to the load circuit, so as to ensure normal operation of the server.

In some embodiments, the first controller is configured to: if the total power supply quantity of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, the third switch power supply and the first switch power supply are controlled to supply power to the load circuit, and the method comprises the following steps: a first controller configured to: and if the difference value between the total power supply quantity of the first power supply device and the new energy power generation module and the power supply demand of the load circuit is determined to be smaller than or equal to a first threshold value, controlling the first switching power supply to output a fourth direct-current voltage, controlling the second switching power supply to output a fifth direct-current voltage, and controlling the third switching power supply to output a sixth direct-current voltage, wherein the fifth direct-current voltage is equal to the sixth direct-current voltage, and the fifth direct-current voltage is larger than the fourth direct-current voltage.

In this embodiment, if the first controller detects that the difference between the total power supply amount of the first power supply device and the new energy power generation module and the required power supply amount of the load circuit is less than or equal to the first threshold, it indicates that the total power supply amount provided by the first power supply device, the new energy power generation module, and the uninterruptible power supply may meet the power supply requirement of the server, so that by further increasing the output voltages of the second switching power supply and the third switching power supply, the electric energy provided by the new energy power generation module, the electric energy stored by the first power supply device, and the electric energy stored by the uninterruptible power supply are all provided to the server through the dc power distribution cabinet, thereby ensuring the normal operation of the server by using the already-equipped uninterruptible power supply, and simultaneously avoiding increasing the power distribution power of the power supply system of the data center to meet the power supply requirement of the server, or providing power expansion to the application power company, and improving the reliability of the server while reducing the operation cost.

In some embodiments, the first controller is configured to: if the total power supply quantity of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, the third switch power supply and the second switch power supply are controlled to supply power to the load circuit, and the method comprises the following steps: if the difference value between the total power supply quantity of the first power supply device and the new energy power generation module and the power supply requirement of the load circuit is larger than a first threshold value, the first switch power supply is controlled to output a fourth direct-current voltage, the second switch power supply is controlled to output a fifth direct-current voltage, the third switch power supply is controlled to output a sixth direct-current voltage, the fourth direct-current voltage is equal to the sixth direct-current voltage, and the fourth direct-current voltage is larger than the fifth direct-current voltage.

In this embodiment, if the first controller detects that the difference between the total power supply amount of the first power supply device and the new energy power generation module and the required power supply amount of the load circuit is greater than the first threshold, it indicates that the power supply requirement of the server is large, and then the first switching power supply and the third switching power supply are controlled to supply power to the load circuit, that is, the electric energy provided by the new energy power generation module and the electric energy stored by the first power supply device are provided to the server through the dc power distribution cabinet together, and the electric energy provided by the second ac power supply is provided to the server through the uninterruptible power supply and the ac power distribution cabinet, so as to ensure the normal operation of the server, avoid increasing the distribution power of the power supply system of the data center to meet the power supply requirement of the server, or provide power expansion for the application power company, reduce the operation cost of the server, and improve the reliability of the server.

In some embodiments, the first controller is configured to control the first switching power supply to output a seventh dc voltage, control the second switching power supply to output an eighth dc voltage, and control the third switching power supply to output a ninth dc voltage in response to the power indication signal from the first power supply, wherein the seventh dc voltage is greater than the eighth dc voltage and the ninth dc voltage.

In this embodiment, when the first power supply device detects that the amount of power stored in its first battery module decreases to the charging threshold, the new energy generation module provides electric energy mainly used for charging the first battery module, so the first power supply device sends a power indication signal to the first controller. In order to meet the power supply requirement of the load circuit, the first controller controls the first switching power supply to supply power to the load circuit, so that the normal operation of the server is ensured, the increase of the power distribution power of a power supply system of a data center for meeting the power supply requirement of the server is avoided, or the power expansion is provided for an application power company, and the reliability of the server is improved while the operation cost of the server is reduced.

In some embodiments, the first controller is further configured to determine that the power supply amount of the new energy power generation module is smaller than a power supply threshold, and send a third input voltage control signal to the control terminal of the first power supply device, where the third input voltage control signal is used to control conduction between the first input terminal of the first power supply device and the output terminal of the first power supply device.

Considering that the electric energy provided by the new energy power generation module is easily influenced by the external environment, for example, the new energy power generation module can be equipment for converting renewable energy sources such as solar energy, wind energy, water energy and the like into electric energy, such as photovoltaic, windmill, small hydropower station and the like, if the new energy power generation module is a photovoltaic power generation module, the new energy power generation module is easily influenced by the illumination intensity of the sun, namely, the stronger the sunlight intensity is, the higher the power of photovoltaic power generation is; the weaker the sunlight intensity, the lower the power of the photovoltaic generation. Therefore, in order to ensure that the server works normally, the first controller can monitor the new energy power supply module before or during the operation of the server, and when the power supply amount of the new energy power generation module is smaller than the power supply threshold value, a third input voltage control signal is sent to the control end of the first power supply device, so that the first power supply device is connected with the second alternating current, and the power supply amount of the first power supply device can meet the power supply amount requirement of the load circuit.

In some embodiments, each first switching power supply further comprises a dc input, and the dc input of each first switching power supply is electrically connected to the third output of the dc power distribution cabinet; each second switching power supply also comprises an alternating current input end, and the alternating current input end of each second switching power supply is electrically connected with the second output end of the alternating current power distribution cabinet; each third switch power supply also comprises an alternating current input end, and the alternating current input end of each third switch power supply is electrically connected with the third output end of the alternating current power distribution cabinet; the direct current power distribution cabinet is also used for outputting a first direct current or a second direct current to the first switching power supply, providing the second direct current to the second switching power supply and providing the first direct current to the third switching power supply; and the alternating current power distribution cabinet is also used for outputting first alternating current to the second switching power supply and the third switching power supply. For example: the first switching power supply, the second switching power supply and the third switching power supply are all Power Supply Unit (PSU), and the server has (m + n + k) PSUs. The PSU1-PSUm is a first switching power supply, the PSU _1-PSU _ n is a second switching power supply, and the PSU1'-PSUk' is a third switching power supply. Each of the first switch power supply, the second switch power supply and the third switch power supply can convert the first alternating current output by the alternating current power distribution cabinet into direct current and then supply power to the load circuit, convert the voltage of the first direct current output by the direct current power distribution cabinet into voltage and then supply power to the load circuit, and convert the voltage of the second direct current output by the direct current power distribution cabinet into voltage and then supply power to the load circuit.

A first controller configured to transmit a first access instruction to at least one of the first, second, and third switching power supplies, the first access instruction being for controlling an ac input terminal of the at least one of the first, second, and third switching power supplies to input a first ac; a first controller configured to transmit a second access instruction to at least one of the first, second, and third switching power supplies, the second access instruction being for inputting a first direct current to a direct current input terminal of the at least one of the first, second, and third switching power supplies; a first controller configured to transmit a third access instruction to at least one of the first, second, and third switching power supplies, the third access instruction being for inputting a second direct current to a direct current input terminal of the at least one of the first, second, and third switching power supplies; the first access instruction, the second access instruction and the third access instruction are respectively sent to different first switch power supplies, second switch power supplies and third switch power supplies.

In this embodiment, the first switching power supply, the second switching power supply, and the third switching power supply are dual-input switching power supplies, that is, each switching power supply is connected to the first ac power through the ac input terminal, and is connected to the first dc power or the second dc power through the dc input terminal, so that the first controller is required to select the input voltage of each power supply device according to the actual condition of the load circuit, for example, when it is determined that the power supply amount of the new energy power generation module meets the power supply requirement of the load circuit, the first controller controls m PSUs as the first switching power supplies to be connected to the first ac power under the control of the first access instruction, and controls x PSUs as the second switching power supplies to be connected to the first dc power under the control of the second access instruction; and controlling the (n-x + k) PSUs as a third switching power supply to access the second direct current under the control of a third access instruction.

In some embodiments, the first switching power supply includes a first switch and a first sub-conversion circuit; the second switching power supply comprises a second switch and a second sub-conversion circuit; the third switch power supply comprises a third switch and a third sub-conversion circuit; the first end of the first switch is electrically connected with the alternating current output end of the first switching power supply; the second end of the first switch is electrically connected with the direct current output end of the first switching power supply; the third end of the first switch is electrically connected with the input end of the first sub-conversion circuit; the output end of the first sub-conversion circuit is electrically connected with the output end of the first switching power supply; the first end of the second switch is electrically connected with the alternating current output end of the second switching power supply; the second end of the second switch is electrically connected with the direct current output end of the second switching power supply; the third end of the second switch is electrically connected with the input end of the second sub-conversion circuit; the output end of the second sub-conversion circuit is electrically connected with the output end load circuit of the second switching power supply; the first end of the third switch is electrically connected with the alternating current output end of the third switch power supply; the second end of the third switch is electrically connected with the direct current output end of the third switch power supply; the third end of the third switch is electrically connected with the input end of the third sub-conversion circuit; and the output end of the third sub-conversion circuit is electrically connected with the output end of the third switching power supply.

The first controller is configured to: controlling the third end of the first switch to be conducted with the first end or the second end of the first switch, and electrically connecting the first sub-conversion circuit with one of the alternating-current power distribution cabinet and the direct-current power distribution cabinet; controlling the third end of the second switch to be conducted with the first end or the second end of the second switch, and electrically connecting the second sub-conversion circuit with one of the alternating-current power distribution cabinet and the direct-current power distribution cabinet; and controlling the third end of the third switch to be conducted with the first end or the second end of the third switch, and electrically connecting the third sub-conversion circuit with one of the alternating-current power distribution cabinet and the direct-current power distribution cabinet.

In this embodiment, the first switching power supply, the second switching power supply and the third switching power supply are dual-input switching power supplies, that is, each switching power supply is connected with ac power through an ac input terminal and is connected with dc power through a dc input terminal, so that the first switch, the second switch and the third switch need to be controlled by the first controller to select input voltages of the first switching power supply, the second switching power supply and the third switching power supply, so as to provide required electric energy for the load circuit and ensure normal operation of the server.

In a second aspect, a power supply system for a data center is provided. The power supply system of the data center comprises: the system comprises a server, an uninterruptible power supply, a first power supply device, an alternating current power distribution cabinet and a direct current power distribution cabinet; the input end of the uninterruptible power supply receives second alternating current, and the amplitude of the second alternating current is larger than that of the first alternating current; the alternating current output end of the uninterrupted power supply is electrically connected with the input end of the alternating current power distribution cabinet; the direct current output end of the uninterrupted power supply is electrically connected with the first input end of the direct current power distribution cabinet; the first input end of the first power supply device is used for accessing a second alternating current, the second input end of the first power supply device is used for accessing an electric signal provided by the new energy power generation module, the control end of the first power supply device is connected with the control ends of the first controller and the new energy power generation module respectively, and the output end of the first power supply device is connected with the second output end of the direct current power distribution cabinet.

In some embodiments, the first power supply device includes: the first input end of the change-over switch is connected with the first input end of the first power supply device, the second input end of the change-over switch is connected with the second input end of the first power supply device, and the output end of the change-over switch is connected with the input end of the first change-over circuit; the output end of the first conversion circuit is connected with the output end of the first power supply device, the first conversion circuit is used for converting the electric signal provided by the new energy power generation module into a tenth direct-current voltage and outputting the tenth direct-current voltage to the output end of the first power supply device or converting the second alternating current into an eleventh direct-current voltage and outputting the eleventh direct-current voltage to the output end of the first power supply device, and the output end of the first power supply device is used for outputting the tenth direct-current voltage or the eleventh direct-current voltage to the second input end of the direct-current power distribution cabinet; the second controller is respectively electrically connected with the control end of the change-over switch and the control end of the first power supply device; and a second controller configured to control conduction between the second input terminal of the switch and the output terminal of the switch in response to the first input voltage control signal from the server.

In this embodiment, considering that the new energy power generation module is easily affected by the external environment, the power of the new energy power generation module changes at any time, and if the power is directly output, the power supply of the whole power supply system is unstable, therefore, a first conversion circuit is arranged between the change-over switch and the dc power distribution cabinet, when the second controller responds to the first input voltage control signal from the server and controls the conduction between the second input end of the change-over switch and the output end of the change-over switch, the voltage of the electrical signal provided by the new energy power generation module is stabilized to be the tenth dc voltage meeting the output set power and is output to the dc power distribution cabinet through the output end of the first power supply device, the dc power distribution cabinet converts the tenth dc voltage into the second dc power and provides the second dc power to the corresponding third switch power supply through the second output end, and the third switch power supply provides the power required by the load circuit, thereby ensuring the normal operation of the server and improving the power supply stability of the first power supply device.

In some embodiments, the first power supply device further includes a first battery module, an input terminal of the first battery module is connected to an output terminal of the first converting circuit, an output terminal of the first battery module is connected to an output terminal of the first power supply device, and a control terminal of the first battery module is connected to the second controller; and the second controller is also configured to respond to a second input voltage control signal from the first controller and control the first battery module to output the twelfth direct-current voltage to the output end of the first power supply device.

In this embodiment, when the first controller of the server monitors that the total power supply provided by the first power supply device and the new energy power generation module can meet the power supply requirement of the server, the first controller of the server sends a second input voltage control signal to the first power supply device, and the second controller of the first power supply device controls the first battery module to output the twelfth dc voltage to the output end of the first power supply device in response to the second input voltage control signal from the server, so as to ensure the normal operation of the server.

In some embodiments, the second controller is further configured to send an electric quantity indicating signal to the control terminal of the power supply device and control the first converting circuit to convert the electric signal provided by the new energy power generation module into a tenth dc voltage and output the tenth dc voltage to the input terminal of the first battery module if it is detected that the stored electric quantity of the first battery module decreases to the charging threshold.

In this embodiment, if it is detected that the stored power of the first battery module is reduced to the charging threshold, the second controller sends a power indication signal to the control terminal of the first power supply device, adjusts the output voltage of each switching power supply of the server according to the power indication signal to ensure normal operation of the server, and controls the first battery module to be charged. For example, the first conversion circuit is controlled to convert the electrical signal provided by the new energy power generation module into the tenth direct-current voltage and output the tenth direct-current voltage to the input end of the first battery module, so that the first battery module can always provide additional electric energy for the server when the power supply amount provided by the new energy power generation module or the power supply amount provided by the second alternating current is insufficient.

In some embodiments, the second controller is configured to control conduction between the first input terminal of the switch and the output terminal of the switch in response to a third input voltage control signal from the server, wherein the server sends the third input voltage control signal to the control terminal of the first power supply device if it is determined that the power supply amount of the new energy power generation module is less than the power supply threshold.

In this embodiment, the second controller controls the conduction between the first input terminal of the change-over switch and the output terminal of the change-over switch in response to the third input voltage control signal from the server, so that the first conversion circuit stabilizes the second ac power to the eleventh dc voltage meeting the output set power and outputs the eleventh dc voltage to the dc distribution cabinet, and the dc distribution cabinet converts the eleventh dc voltage into the second dc power and provides the second dc power to the third switch power supply connected to the second output terminal of the dc distribution cabinet, thereby improving the power supply stability of the first power supply apparatus while ensuring the normal operation of the server.

In some embodiments, an uninterruptible power supply includes: the battery pack comprises a rectification circuit, a bypass circuit, an inverter circuit, a second conversion circuit and a second battery module; the input end of the rectification circuit is respectively and electrically connected with the input end of the bypass circuit and the input end of the uninterruptible power supply; the output end of the rectification circuit is electrically connected with the input end of the inverter circuit; the output end of the inverter circuit is respectively electrically connected with the output end of the bypass circuit and the alternating current output end of the uninterruptible power supply; the first end of the second conversion circuit is electrically connected with the output end of the rectification circuit, the second end of the second conversion circuit is electrically connected with the first end of the second battery module, and the second end of the second battery module is electrically connected with the direct current output end of the uninterruptible power supply.

In this embodiment, in consideration of the problems of flash, fluctuation, transient and the like of the second alternating current connected to the input terminal of the uninterruptible power supply, the second alternating current is not suitable for being directly provided to the server, so that the uninterruptible power supply provides the second alternating current to the alternating current output terminal of the uninterruptible power supply by arranging the rectifying circuit and the inverter circuit so as to provide the first alternating current for the first switching power supply through the alternating current power distribution cabinet. Meanwhile, the second battery module of the uninterruptible power supply provides the electric energy stored by the second battery module to the second switching power supply through the direct-current power distribution cabinet, so that the first switching power supply and the second switching power supply can provide enough electric energy for a load circuit to ensure that a server works normally; when the rectifying circuit or the inverter circuit is abnormal, the second alternating current can be transmitted to the alternating current output end of the uninterruptible power supply through the bypass circuit, so that the alternating current power distribution cabinet can be ensured to always provide the first alternating current to maintain the normal work of the server; meanwhile, the uninterrupted power supply is also provided with a second conversion circuit between the rectification circuit and the second battery module, and the second battery module is charged through the rectification circuit and the second conversion circuit, so that the second battery module can always provide first direct current for the second switching power supply through the direct current power distribution cabinet, the server can normally work, and service interruption is avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a power supply system of a data center according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a UPS according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram illustrating changes in load current when a server according to an embodiment of the present application operates;

fig. 4 is a schematic structural diagram of a server according to an embodiment of the present application;

fig. 5 is a graph comparing the power supply amount of the new energy power generation module, the power supply amount of the first power supply device, and the power supply amount required by the load according to the embodiment of the present application;

fig. 6 is a schematic structural diagram of another server provided in the embodiment of the present application;

fig. 7 is a schematic structural diagram of another server provided in the embodiment of the present application;

fig. 8 is a schematic structural diagram of another server provided in the embodiment of the present application;

fig. 9 is a schematic structural diagram of a power supply system of a data center according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a power supply system of another data center according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a power supply system of another data center according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of a power supply system of another data center according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of a power supply system of another data center according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of another power supply system of a data center according to an embodiment of the present application.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. As can be known to those skilled in the art, with the development of technology and the emergence of new scenarios, the technical solution provided by the embodiment of the present invention is also applicable to similar technical problems.

The terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be implemented in other sequences than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not expressly listed or inherent to such process, method, article, or apparatus. The naming or numbering of the steps appearing in the present invention does not mean that the steps in the method flow must be executed according to the chronological or logical sequence indicated by the naming or numbering, and the named or numbered steps of the flow may change the execution order according to the technical purpose to be achieved, as long as the same or similar technical effects are achieved.

As shown in fig. 1, a power supply scheme of a data center is provided, wherein a power supply system of the data center is composed of a switch cabinet 40, a transformer 50, a low voltage cabinet 60, an Uninterruptible Power Supply (UPS) 20 and an ac power distribution cabinet 30, and the UPS20 and the ac power distribution cabinet 30 of the normal power supply system are disposed in a machine room of the data center together with a server 10 to form the data center.

Due to the high power supply quality requirements of the servers, the data center is required to provide a continuous, stable, balanced and safe power supply environment. However, the high-voltage ac voltage provided by the grid voltage is relatively high and unstable, and is not suitable for being directly provided to the server, so that the high-voltage ac voltage needs to be processed by the power supply system of the data center before being distributed to the server, and the data center and each device in the power supply system are described in detail below:

the input end of the switch cabinet 40 is connected to the input end of a power supply system, the input end of the power supply system is used for receiving the voltage of a power grid, for example, high-voltage alternating current of 10KV, and the output end of the switch cabinet 40 is connected to the input end of the transformer 50; the switch cabinet 40 is provided with a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like, and is mainly used for controlling the conduction of a power grid and the transformer 50 so as to input power grid voltage to the transformer 50; and performing protection control, for example, the connection between the power grid and the transformer 50 can be disconnected in some abnormal power supply scenes (overcurrent, overvoltage) so as to protect subsequent equipment such as the transformer 50.

The output end of the transformer 50 is connected with the input end of the low-voltage cabinet 60; the transformer 50 is mainly used to convert the high-voltage ac power into low-voltage commercial power, for example, 380V low-voltage ac power.

The output end of the low-voltage cabinet 60 is connected with the input end of the UPS 20; the structure and function of the low-voltage cabinet 60 are similar to those of the switch cabinet 40, and of course, the low-voltage cabinet 60 is disposed on the low-voltage line, so the device model inside the low-voltage cabinet is different from that of the switch cabinet 40. The low-voltage cabinet 60 is mainly used to connect the transformer 50 to the UPS20 for outputting the utility power to the UPS 20. Alternatively, the transformer 50 may be disconnected from the UPS20 in some abnormal power supply scenarios (overcurrent, overvoltage), for example, to protect subsequent devices such as the UPS 20.

The output end of the uninterruptible power supply (UPS 20) is connected with the input end of the alternating current power distribution cabinet 30, and the output end of the alternating current power distribution cabinet 30 is connected with the input end of the server 10. A second battery module 204 is included in the UPS20 for storing energy. When the mains supply is input normally, the UPS20 performs voltage stabilization on the mains supply and supplies the voltage-stabilized mains supply to the server through the ac power distribution cabinet 30 for use, at this time, the UPS20 is equivalent to an ac power stabilizer, and meanwhile, the UPS20 can also charge the second battery module 204; when the utility power is cut off (accident power failure, or protective disconnection of the utility power), the UPS20 converts the dc power of the second battery module into 220V ac power through the inverter, and supplies the ac power to the server through the ac power distribution cabinet 30, so that the server can maintain normal operation.

The ac distribution cabinet 30 has a structure and a function similar to those of the switch cabinet 40, and is mainly used for connecting the UPS20 with the server 10 to supply power to the server 10. Alternatively, for example, the UPS20 may be disconnected from the server 10 in some abnormal power supply scenarios (overcurrent, overvoltage) to protect subsequent devices such as the server 10.

As shown in fig. 2, the uninterruptible power supply UPS20 includes: a rectifier circuit 201, an inverter circuit 202, a second inverter circuit 203, a second battery module 204, and a bypass circuit 205.

Wherein: the input end of the rectifying circuit 201 is connected to the input end of the UPS20, the input end of the UPS20 is used for receiving the commercial power from the output end of the low-voltage cabinet 60, and the output end of the rectifying circuit 201 is connected to the input end of the inverter circuit 202 and the input end of the second inverter circuit 203. The rectifying circuit 201 is used for converting the commercial power into stable direct current.

The output terminal of the inverter circuit 202 is connected to the output terminal of the UPS 20. The inverter circuit 202 is used for converting the dc power output by the rectifier circuit 201 into ac power and outputting the ac power to the ac power distribution cabinet 30 through the output terminal of the UPS 20.

The output end of the second conversion circuit 203 is connected to the second battery module 204, and is configured to convert the dc power output by the rectification circuit 201 into a voltage meeting the charging requirement of the second battery module 204 after voltage conversion, and charge the second battery module 204. Or, when the utility power is disconnected, the second conversion circuit 203 performs voltage conversion on the direct current output by the second battery module 204 and outputs the direct current to the inverter circuit 202, and the inverter circuit 202 is further configured to convert the direct current output by the second conversion circuit 203 into alternating current and output the alternating current to the ac power distribution cabinet 30 through the output terminal of the UPS 20.

The bypass circuit 205 is connected between the input of the UPS20 and the output of the UPS20, and is configured to convert the commercial power into ac power and output the ac power to the ac power distribution cabinet 30 through the output of the UPS 20.

In specific implementation, when the commercial power input at the input end of the UPS20 is normally supplied, the UPS20 converts the commercial power into stable direct current through the rectification circuit 201, and then converts the direct current output by the rectification circuit 201 into alternating current through the inverter circuit 202 and outputs the alternating current to the ac power distribution cabinet 30 through the output end of the UPS 20; when the commercial power input at the input end of the UPS20 cannot normally supply power, for example, the input voltage value at the input end of the UPS20 is 0, the dc power output by the second battery module 204 is subjected to voltage conversion by the second conversion circuit 203, for example, the dc power output by the second battery module 204 is boosted and then output to the inverter circuit 202, and the inverter circuit 202 converts the dc power output by the second conversion circuit 203 into ac power and outputs the ac power to the ac power distribution cabinet 30 through the output end of the UPS 20; when the rectifier circuit or the inverter circuit has a fault, for example, the input voltage value at the input end of the UPS20 is 380V, but the voltage value output at the output end of the inverter circuit is 0, the bypass circuit 205 converts the utility power into ac power and outputs the ac power to the ac power distribution cabinet 30 through the output end of the UPS 20.

Fig. 3 shows a change of load current when a server of the data center operates, and the following describes problems of the power supply system with reference to fig. 3:

at the time 0-T1, the load current of the server 10 is I1, the server 10 is in a steady-state working state, and the power supply system can meet the power supply requirement of the server 10; however, with the increase of the demand of the computational power of the data center and the increase of the service, at the time T1-T2, the load current of the server 10 rapidly rises to P2, and the server 10 is already in the first peak working state, because the load power in the peak working state may be several times of the load power in the steady-state working state, the alternating current provided by the commercial power cannot meet the power supply demand of the server 10 while the power consumption increases, thereby causing the abnormal operation of the server 10; meanwhile, limited by the heat dissipation capacity of the data center, when the temperature of the server 10 in the peak working state rises to the cooling threshold, the processing capacity of the server 10 is reduced to reduce heat consumption, at the time point T2-T3, the load current of the server 10 is reduced to I3, the server 10 is in the second peak working state, although the load power of the server is still higher than that of the server in the steady working state, the processing capacity of the server 10 is gradually restored along with the temperature reduction of the server 10 until the time point T3, and the server 10 is restored to the steady working state again.

In order to solve the problem that the power supply system cannot meet the power supply requirement of the server in the first peak working state or the second peak working state, the distribution power of the whole power supply system can be increased, for example, the number of switches in a switch cabinet is increased, or the capacity of a transformer is increased, and meanwhile, power expansion is provided for an application power company. However, increasing the distribution power of the whole power supply system requires replacing at least one device of the power supply system, for example, increasing the capacity of the transformer requires replacing the transformer and the cable connected to the transformer, which results in large modification workload, large investment and long cycle, and meanwhile, the devices in the original power supply system have normal functions, are replaced for improving the distribution power of the power supply system, thereby causing investment waste, and the power consumption of the modified power supply system further increases, which further increases the operation cost; when the capacity expansion is applied to the power company, the power grid needs to be modified, the limit is limited by the actual load of the whole power grid, uncertainty exists, and the data center may not be realized or the modification period is too long under the serious condition, so that the data center is in an unavailable state for a long time, and the normal service capability of the data center is seriously influenced.

Fig. 4 is a schematic structural diagram of a server according to an embodiment of the present invention. The server 10 includes m first switching power supplies 101, n second switching power supplies 102, k third switching power supplies 103, a load circuit 104, and a first controller 105; for example, the controller may be a baseboard management controller BMC (BMC) of the server, where the m first switching power supplies 101 are connected in parallel, where m is a positive integer greater than or equal to 1; the n second switching power supplies 102 are connected in parallel, wherein n is a positive integer greater than or equal to 1; the k third switching power supplies 103 are connected in parallel, where k is a positive integer greater than or equal to 1. For example, the first switching power supply, the second switching power supply, and the third switching power supply may all be power supply units PSU (PSU), for example, PSU1-PSUm shown in fig. 4 is the first switching power supply, PSU _1-PSU _ n is the second switching power supply, and PSU1'-PSUk' is the third switching power supply.

Each first switching power supply 101 comprises an alternating current input end, an output end and a control end, the alternating current input end of each first switching power supply 101 is electrically connected with the first output end of the alternating current power distribution cabinet 30, and the output end of each first switching power supply 101 is electrically connected with the load circuit 104; a control terminal of each first switching power supply 101 is electrically connected to a corresponding control signal output terminal of the first controller 105. The input end of the ac power distribution cabinet 30 is connected to the ac output end of the uninterruptible power supply 20, and the ac power distribution cabinet 30 is configured to output a first ac power to the first switching power supply 101; illustratively, the first alternating current is 220V alternating current.

Each second switching power supply 102 comprises a direct current input end, an output end and a control end, the direct current input end of each second switching power supply 102 is electrically connected with the first output end of the direct current power distribution cabinet 70, and the output end of each second switching power supply 102 is electrically connected with the load circuit 104; a control terminal of each second switching power supply 102 is electrically connected to a corresponding control signal output terminal of the first controller 105. The first input end of the dc power distribution cabinet 70 is electrically connected to the dc output end of the uninterruptible power supply 20, and the dc power distribution cabinet 70 is configured to output a first dc power, which is 240V dc power for example, to the second switching power supply 102.

Each third switching power supply 103 comprises a direct current input end, an output end and a control end, the direct current input end of each third switching power supply 103 is electrically connected with the second output end of the direct current power distribution cabinet 70, and the output end of each third switching power supply 103 is electrically connected with the load circuit 104; a control terminal of each third switching power supply 103 is electrically connected to a corresponding control signal output terminal of the first controller 105. A second input end of the direct current power distribution cabinet 70 is electrically connected with an output end of the first power supply device 80, and the direct current power distribution cabinet 70 is further configured to output a second direct current to the third switching power supply 103; illustratively, the second dc power is 240V dc power.

The first input end of the first power supply device 80 is used for accessing a second alternating current, the amplitude of the second alternating current is greater than that of the first alternating current, and the second alternating current is 380V commercial power by way of example; a second input end of the first power supply device 80 is used for accessing an electrical signal provided by the new energy power generation module 90, a control end of the first power supply device 80 is connected with a control end of the first controller 105, and the control end of the first power supply device 80 is used for sending the power supply amount of the first power supply device 80 to the first controller 105; the control end of the new energy power generation module 90 is electrically connected with the control end of the first controller 105, and the control end of the new energy power generation module 90 is used for sending the power supply amount of the new energy power generation module 90 to the first controller 105. It can be understood that the power supply amount of the new energy power generation module can be an instant power supply amount of the new energy power generation module or a predicted power supply amount of the new energy power generation module in a future period.

In this embodiment, the first controller obtains the power supply amount of the new energy power generation module and the power supply requirement of the load circuit, and if it is determined that the power supply amount of the new energy power generation module can meet the power supply requirement of the load circuit, controls the k third switching power supplies PSU1'-PSUk' to supply power to the load circuit, and at this time, supplies power to the load circuit through the new energy power generation module. Meanwhile, each first switching power supply and each second switching power supply are in a hot standby state, and the first switching power supplies PSU1-PSUm and the second switching power supplies PSU _1-PSU _ n are used as redundant modules for supplying power to the load circuit.

It is understood that, in another embodiment, the control terminal of the new energy power generation module may be further electrically connected to the control terminal of the first power supply device, and the first power supply device sends the power supply amount of the new energy power generation module and the power supply amount of the first power supply device to the first controller together, so that the first controller adjusts the output voltages of the first switching power supply, the second switching power supply and the third switching power supply.

In an optional embodiment, it is determined that the power supply amount of the new energy power generation module meets the power supply requirement of the load circuit, and the k third switching power supplies are controlled to supply power to the load circuit, further comprising: the first controller is configured to: determining that the power supply quantity of the new energy power generation module meets the power supply requirement of a load circuit, and sending a first input voltage control signal to a control end of a first power supply device, wherein the first input voltage control signal is used for controlling the conduction between a second input end of the first power supply device and an output end of the first power supply device, controlling a first switch power supply to output a first direct current voltage, controlling a second switch power supply to output a second direct current voltage, and controlling a third switch power supply to output a third direct current voltage; the first direct current voltage and the second direct current voltage are both smaller than the third direct current voltage.

In a specific example, the power supply demand of the load circuit and the power supply amount of the power supply device are changed as shown in fig. 5, and the server is described in detail with reference to fig. 4 and 5 as follows:

at the time of T0, the first controller 105 obtains a predicted power supply amount value Esup1 of the new energy power generation module 90 at the time of T0 to T1 according to a preset interval time, and predicts that the power supply amount demand of the load circuit 104 of the server 10 at the time of T0 to T1 is Ereq1 according to the service characteristics and the historical data of the server 10. Because Esup1 is greater than Ereq1, the power supply amount of the new energy power generation module 90 can meet the power supply requirement of the server 10, the first controller 105 sends a first input voltage control signal to the control end of the first power supply device 80, the first input voltage control signal is used for controlling the conduction between the second input end of the first power supply device 80 and the output end of the first power supply device 80, and therefore the electric signal provided by the new energy power generation module 90 can be transmitted to the direct current power distribution cabinet 70 through the first power supply device 80.

Then the first controller 105 outputs a first control signal to the first switching power supply 101, and the first switching power supply 101 outputs a first direct current voltage under the control of the first control signal; outputting a second voltage control signal to the second switching power supply 102, wherein the second switching power supply 102 outputs a second direct current voltage under the control of the second voltage control signal; outputting a third control signal to the third switching power supply 103, and outputting a third direct current voltage by the third switching power supply 103 under the control of the third control signal; the first direct current voltage and the second direct current voltage are both smaller than the third direct current voltage. For example, the first controller 105 outputs a first Pulse Width Modulation (PWM) signal to the first switching power supplies PSU1 to PSUm, respectively, and PSU1 to PSUm outputs a 12V voltage under the control of the first PWM signal; the first controller 105 outputs second PWM signals to the second switching power supplies PSU _1-PSU _ n, respectively, and PSU _1-PSU _ n outputs 12V voltage under the control of the second PWM signals; the first controller 105 outputs a third PWM signal to the third switching power supplies PSU1'-PSUk', and PSU1'-PSUk' outputs a voltage of 12.3V under the control of the third PWM signal, respectively. Because the voltage output by the third switching power supply PSU1'-PSUk' is greater than the output voltage of the first switching power supply PSU1-PSUm and the second switching power supply PSU _1-PSU _ n, the k third switching power supplies PSU1'-PSUk' provide the electric energy required by the load circuit at the time from T0 to T1, and during the period, the new energy power generation module is used as the electric energy source of the server, so that the normal operation of the server is ensured, and the operation cost of the data center server is reduced.

It should be noted that, in this embodiment, the first controller may predict the power demand of the load circuit for a future period of time, for example, 10 minutes in the future, according to the actual load average value of the load circuit for a past period of time, for example, 5 minutes in the past, or may add a coefficient K to correct the power demand of the load circuit, where the coefficient may be determined according to a past similar time period or a similar server traffic characteristic. The method for predicting the power supply amount of the new energy power generation module is similar to the method for predicting the power supply demand of the load circuit, and is not described in detail herein.

In an alternative embodiment, the first controller is configured to: if the power supply quantity of the new energy power generation module cannot meet the power supply requirement of the load circuit, acquiring the power supply quantity of a first power supply device, determining that the total power supply quantity of the first power supply device and the new energy power generation module meets the power supply requirement of the load circuit, sending a second input voltage control signal to a control end of the first power supply device, controlling a first switch power supply to output a first direct current voltage, controlling a second switch power supply to output a second direct current voltage, and controlling a third switch power supply to output a third direct current voltage; the first direct current voltage and the second direct current voltage are both smaller than the third direct current voltage.

In a specific example, a schematic structural diagram of the server is shown in fig. 6, and the following describes the server in detail with reference to fig. 5 and fig. 6:

at the time T1, the first controller 105 obtains a predicted power supply amount value Esup2 of the new energy power generation module 90 at the time T1 to time T2 according to a preset interval time, and predicts a power supply amount required by the load circuit 104 of the server 10 at the time T1 to time T2 to be Ereq2 according to the service characteristics and the historical data of the server 10. Since Esup2 is smaller than Ereq2, the power supply amount provided by the new energy power generation module 90 cannot meet the power supply demand of the server 10. The first controller then acquires the power supply amount A2 of the first power supply device 80 at the time T1-T2. It is understood that the first power supply device 80 may include the first battery module 804, and the power supply amount of the first power supply device may be the power supply amount provided by the first battery module 804.

If the total power supply amount A2+ Esup2 of the first power supply device 80 and the new energy power generation module 90 is equal to or greater than the power supply amount Ereq2 required by the load circuit 104, the first controller 105 determines that the total power supply amount of the first power supply device 80 and the new energy power generation module 90 meets the power supply requirement of the load circuit 104, and sends a second input voltage control signal to the control end of the first power supply device 80. The first controller 105 then controls the first switching power supply PSU1-PSUm to output a first dc voltage, the second switching power supply PSU _1-PSU _ n to output a second dc voltage, and the third switching power supply PSU1'-PSUk' to output a third dc voltage. Since the first dc voltage and the second dc voltage are both lower than the third dc voltage, at time T1-T2, the third switching power supply PSU1'-PSUk' provides the electric energy required by the load circuit 104, and the new energy power generation module 90 and the first power supply device 80 together serve as an electric energy source for the server, thereby reducing the operation cost and ensuring the normal operation of the server.

In an alternative embodiment, the first controller is configured to: and if the total power supply amount of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, controlling the third switch power supply and the first switch power supply or the third switch power supply and the second switch power supply to supply power to the load circuit.

In an alternative embodiment, the first controller is configured to: if the total power supply amount of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, the third switch power supply and the first switch power supply are controlled to supply power to the load circuit, and the method further comprises the following steps: the first controller is configured to control the first switching power supply to output a fourth direct current voltage, control the second switching power supply to output a fifth direct current voltage, and control the third switching power supply to output a sixth direct current voltage if it is determined that a difference between a total power supply amount of the first power supply device and the new energy power generation module and a power supply demand of the load circuit is smaller than or equal to a first threshold, wherein the fifth direct current voltage is equal to the sixth direct current voltage, and the fifth direct current voltage is larger than the fourth direct current voltage.

As for the previous example, at time T2, the first controller 105 obtains the predicted power supply amount value Esup3 of the new energy power generation module 90 at time T2 to time T3 according to the preset interval time, and predicts the power supply amount required by the load circuit 104 of the server 10 at time T2 to time T3 to be Ereq3 according to the service characteristics and the historical data of the server 10. Since Esup3 is smaller than Ereq3, the power supply amount of the new energy power generation module 90 cannot meet the power supply demand of the server 10. Then, the first controller obtains the power supply amount A3 of the first power supply device 80 at the time point T2-T3, and since A3+ Esup3 is still less than Ereq3, the first controller calculates a difference between the total power supply amount A3+ Esup3 of the first power supply device and the new energy power generation module and the required power supply amount Ereq3 of the load circuit.

If the first controller 105 detects that the difference between the total power supply amount A3+ Esup3 of the first power supply device 80 and the new energy power generation module 90 and the required power supply amount Ereq3 of the load circuit 104 is less than or equal to the first threshold, it indicates that the difference between the total power supply amount A3+ Esup3 of the first power supply device 80 and the new energy power generation module and the required power supply amount Ereq3 of the load circuit 104 is not large, so that the total power supply amount provided by the first power supply device 80, the new energy power generation module 90 and the uninterruptible power supply 20 may meet the power supply requirement of the server 10, and then the first controller 105 controls the first switching power supplies PSU1-PSUm to output a fourth direct current voltage, controls the second switching power supplies PSU _1-PSU _ n to output a fifth direct current voltage, and controls the third switching power supplies PSU1'-PSUk' to output a sixth direct current voltage, where the fifth voltage is equal to the sixth voltage, and the fifth voltage and the sixth voltage are both greater than the fourth voltage. At this moment, because fifth direct current voltage and sixth direct current voltage are all higher than fourth direct current voltage, so supply power for load circuit by second switching power supply and third switching power supply, be about to the electric energy that new forms of energy power generation module provided, the electric energy of first power supply unit storage and the electric energy of uninterrupted power supply storage all provide the server through DC switch board, thereby utilize the uninterrupted power supply who has been equipped to guarantee the normal operating of server, avoided simultaneously increasing the distribution power of the power supply system of data center for satisfying the power supply demand of server, or provide electric power dilatation to the application power company, when having reduced the operation cost, the reliability of server has been improved.

In an alternative embodiment, the first controller is configured to: if the total power supply quantity of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, the third switch power supply and the second switch power supply are controlled to supply power to the load circuit, and the method comprises the following steps: if the difference value between the total power supply quantity of the first power supply device and the new energy power generation module and the power supply requirement of the load circuit is larger than a first threshold value, the first switching power supply is controlled to output a fourth direct current voltage, the second switching power supply is controlled to output a fifth direct current voltage, the third switching power supply is controlled to output a sixth direct current voltage, the fourth direct current voltage is equal to the sixth direct current voltage, and the fourth direct current voltage is larger than the fifth direct current voltage.

As for the previous example, at the time T3, the first controller 105 obtains the predicted power supply amount value Esup4 of the new energy power generation module 90 at the time T3 to time T4 according to the preset interval time, and predicts the power supply amount required by the load circuit 104 of the server 10 at the time T3 to time T4 to be Ereq4 according to the service characteristics and the historical data of the server 10. Since Esup4 is smaller than Ereq4, the power supply amount of the new energy power generation module 90 cannot meet the power supply demand of the server 10. Therefore, the first controller obtains the power supply amount A4 of the first power supply device 80 at the time point from T3 to T4, and since A4+ Esup4 is still less than Ereq4, the first controller calculates the difference between the total power supply amount A4+ Esup4 of the first power supply device and the new energy power generation module and the required power supply amount Ereq4 of the load circuit.

If the first controller 105 detects that the difference between the total power supply amount A4+ Esup4 of the first power supply device 80 and the new energy power generation module 90 and the required power supply amount Ereq4 of the load circuit 104 is greater than the first threshold, it indicates that only the difference between the total power supply amount of the first power supply device 80 and the new energy power generation module 90 and the power supply requirement of the server is large, so the first controller 105 controls the first switching power supplies PSU1-PSUm to output the fourth direct-current voltage, controls the second switching power supplies PSU _1-PSU _ n to output the fifth direct-current voltage, and controls the third switching power supplies PSU1'-PSUk' to output the sixth direct-current voltage, where the fourth voltage is equal to the sixth voltage, and the fourth voltage and the sixth voltage are greater than the fifth voltage. At this moment, because the fourth direct current voltage and the sixth direct current voltage are both greater than the fifth direct current voltage, the first switch power supply and the third switch power supply power for the load circuit, namely, the electric energy provided by the new energy power generation module and the electric energy stored by the first power supply device are provided for the server through the direct current power distribution cabinet together, the electric energy provided by the second alternating current is provided for the server through the uninterruptible power supply and the alternating current power distribution cabinet, so that the normal operation of the server is ensured, the increase of the distribution power of the power supply system of the data center for meeting the power supply requirement of the server is avoided, or the power expansion is provided for an application power company, and the operation cost of the server is reduced, and meanwhile, the reliability of the server is improved.

It should be noted that the first threshold in this embodiment may be set according to the electric energy stored by the uninterruptible power supply, for example, 30% of the electric energy stored by the uninterruptible power supply is used as the first threshold, and if it is determined that the difference between the total power supply amount of the first power supply device and the new energy power generation module and the power supply demand of the load circuit is less than or equal to 30% of the electric energy stored by the uninterruptible power supply, the first controller controls the second switching power supply and the third switching power supply to supply power to the load circuit, otherwise, controls the first switching power supply and the third switching power supply to supply power to the load circuit.

In an optional embodiment, the first controller is configured to control the first switching power supply to output a seventh dc voltage, control the second switching power supply to output an eighth dc voltage, and control the third switching power supply to output a ninth dc voltage in response to the power indication signal from the first power supply device, wherein the seventh dc voltage is greater than the eighth dc voltage and the ninth dc voltage.

In this embodiment, when the first power supply device 80 detects that the amount of power stored in the first battery module of the first power supply device is reduced to the charging threshold, it sends a power indication signal to the first controller, and controls the electric energy provided by the new energy power generation module 90 to be used for charging the first battery module.

The first controller 105 controls the first switching power supplies PSU1-PSUm to output the seventh dc voltage, controls the second switching power supplies PSU _1-PSU _ n to output the eighth dc voltage, and controls the third switching power supplies PSU1'-PSUk' to output the ninth dc voltage in response to the power level indication signal from the first power supply 80. Because the seventh direct current voltage is greater than the eighth direct current voltage and the ninth direct current voltage, the first switching power supply supplies power to the load circuit, and normal operation of the server is guaranteed while operation cost is reduced. Considering that the electric energy provided by the new energy power generation module is easily influenced by the external environment, for example, the new energy power generation module can be equipment for converting renewable energy sources such as solar energy, wind energy, water energy and the like into electric energy, such as photovoltaic, windmill, small hydropower station and the like, if the new energy power generation module is a photovoltaic power generation module, the new energy power generation module is easily influenced by the illumination intensity of the sun, namely, the stronger the sunlight intensity is, the higher the power of photovoltaic power generation is; the weaker the sunlight intensity, the lower the power of photovoltaic power generation; if the new energy power generation module is a wind power generation module, the new energy power generation module is easily influenced by wind power, namely the stronger the wind power is, the higher the power generated by the wind power is; the weaker the wind, the lower the power generated by the wind. Therefore, in an optional embodiment, the first controller is further configured to determine that the power supply amount of the new energy power generation module is smaller than the power supply threshold, and send a third input voltage control signal to the control terminal of the first power supply device, where the third input voltage control signal is used to control conduction between the first input terminal of the first power supply device and the output terminal of the first power supply device.

In connection with the foregoing example, in order to ensure that the server operates normally, the new energy power supply module may be monitored before or during the operation of the server, for example, at time T4, the first controller 105 obtains a predicted power supply amount value Esup5 of the new energy power generation module 90 at time T4 to time T5 according to a preset interval time, and predicts, according to the service characteristics and the historical data of the server 10, that the power supply amount required by the load circuit 104 of the server 10 at time T4 to time T5 is Ereq5. Due to Esup5=0, the first controller 105 determines that the power supply amount of the new energy power generation module is lower than the power supply threshold, which indicates that the new energy power generation module cannot supply power at this time, so the first controller 105 sends a third input voltage control signal to the control end of the first power supply device 80, and the third input voltage control signal is used for controlling the first input end of the first power supply device 80 and the output end of the first power supply device 80 to be connected, so that the second alternating current can be transmitted to the direct current power distribution cabinet 70 through the first power supply device 80, and the power supply amount provided by the second alternating current can meet the power supply amount demand Ereq5 of the load circuit.

It should be noted that the operation principle and the working flow of the electrical signal provided by the new energy power generation module and inputted by the first power supply device are similar to those of the electrical signal provided by the first power supply device in the above embodiment, for example, if the first controller determines that the power supply amount provided by the second ac power satisfies the power supply requirement of the load circuit, each third switching power supply is controlled to supply power to the load circuit, and the related points are referred to each other, and are not described in detail herein.

In an alternative embodiment, as shown in fig. 7, based on the server structure shown in fig. 4, each first switching power supply 101 further includes a dc input terminal, and the dc input terminal of each first switching power supply 101 is electrically connected to the third output terminal of the dc distribution cabinet 70; each second switching power supply 102 further comprises an alternating current input end, and the alternating current input end of each second switching power supply 102 is electrically connected with a second output end of the alternating current power distribution cabinet 30; each third switching power supply 103 further comprises an alternating current input end, and the alternating current input end of each third switching power supply 103 is electrically connected with a third output end of the alternating current power distribution cabinet 30; the direct current distribution cabinet 70 is further configured to provide a first direct current or a second direct current to the first switching power supply 101, provide a second direct current to the second switching power supply, and provide a first direct current to the third switching power supply 103; the ac distribution cabinet 30 is further adapted to supply a first ac power to the second switching power supply 102 and the third switching power supply 103.

A first controller configured to transmit a first access instruction to at least one of the first, second, and third switching power supplies, the first access instruction being for controlling an ac input terminal of the at least one of the first, second, and third switching power supplies to input a first ac; sending a second access instruction to at least one of the first switching power supply, the second switching power supply and the third switching power supply, wherein the second access instruction is used for inputting a first direct current to a direct current input end of at least one of the first switching power supply, the second switching power supply and the third switching power supply; sending a third access instruction to at least one of the first switching power supply, the second switching power supply and the third switching power supply, wherein the third access instruction is used for inputting second direct current to the direct current input end of at least one of the first switching power supply, the second switching power supply and the third switching power supply; the first access instruction, the second access instruction and the third access instruction are respectively sent to different first switch power supplies, second switch power supplies and third switch power supplies.

In this embodiment, the first switching power supply, the second switching power supply and the third switching power supply are dual-input switching power supplies, that is, each switching power supply is connected with the first alternating current through the alternating current input end and is connected with the first direct current or the second direct current through the direct current input end, so that the first controller is required to select the input voltage of each power supply device according to the actual condition of the load circuit, for example, when it is determined that the power supply amount of the new energy power generation module meets the power supply requirement of the load circuit, the first controller sends a first access instruction to the PSU1-PSU, and the PSU1-PSU is used as the first switching power supply to access the first alternating current under the control of the first access instruction; the first controller sends a second access instruction to the PSU _1-PSU _ x, and the PSU _1-PSU _ x serving as a second switching power supply is accessed to the first direct current under the control of the second access instruction; the first controller sends a third access instruction to the PSU _ x +1-PSU _ n and the PSU1'-PSUk', and the PSU _ x +1-PSU _ n and the PSU1'-PSUk' as third switching power supplies access the second direct current under the control of the third access instruction.

In an alternative embodiment, as shown in fig. 8, the first switching power supply 101 includes a first switch 1011 and a first sub-converting circuit 1012; the second switching power supply 102 includes a second switch 1021 and a second sub-conversion circuit 1022; the third switching power supply includes a third switch 1031 and a third sub-conversion circuit 1032; a first terminal of the first switch 1011 is electrically connected to an ac output terminal of the first switching power supply 101; a second end of the first switch 1011 is electrically connected to a dc output end of the first switching power supply 101; a third terminal of the first switch 1011 is electrically connected to an input terminal of the first sub-converting circuit 1012; an output terminal of the first sub-converter circuit 1012 is electrically connected to an output terminal of the first switching power supply 101; a first end of the second switch 1021 is electrically connected with an alternating current output end of the second switching power supply 102; a second end of the second switch 1021 is electrically connected to the dc output of the second switching power supply 102; a third terminal of the second switch 1021 is electrically connected to an input terminal of the second sub-converting circuit 1022; the output terminal of the second sub-conversion circuit 1022 is electrically connected to the output terminal of the second switching power supply 102; a first end of the third switch 1031 is electrically connected to an ac output end of the third switching power supply 103; a second terminal of the third switch 1031 is electrically connected to a dc output terminal of the third switching power supply 103; a third terminal of the third switch 1031 is electrically connected to an input terminal of the third sub-conversion circuit 1032; an output terminal of the third sub-conversion circuit 1032 is electrically connected to an output terminal of the third switching power supply 103.

In this embodiment, the switching power supplies PSU of the first switching power supply, the second switching power supply and the third switching power supply are all dual-input PSUs, that is, each switching power supply PSU is connected with the first alternating current through an alternating current input end, and is connected with the first direct current or the second direct current through a direct current input end, so that the input voltage of each switching power supply PSU needs to be selected through the controller according to the actual condition of the load circuit, for example, when it is determined that the power supply amount of the new energy power generation module meets the power supply requirement of the load circuit, the first controller sends a first access instruction to the PSU1-PSU m, the PSU1-PSU m is used as the first switching power supply to control conduction between the first end and the third end of the first switch of the first switching power supply under the control of the first access instruction, and the first sub-conversion circuit of the PSU1-PSU m converts the input first alternating current into the first direct current voltage for output; the first controller sends a second access instruction to the PSU _1-PSU _ x, the PSU _1-PSU _ x serves as a second switching power supply to control conduction between a first end and a third end of a first switch of the second switching power supply under the control of the second access instruction, and a second sub-conversion circuit of the PSU1-PSUm converts input first direct current into second direct current voltage to be output; the first controller sends a third access instruction to the PSU _ x +1-PSU _ n and the PSU1'-PSUk', the PSU _ x +1-PSU _ n and the PSU1'-PSUk' serve as third switch power supplies to control conduction between the first end and the third end of a third switch of the first controller, and a third sub-conversion circuit of the PSU _ x +1-PSU _ n and the PSU1'-PSUk' converts the input second direct current into a third direct current voltage to be output.

Another embodiment of the present application further provides a power supply system of a data center, as shown in fig. 9, the power supply system of the data center includes: the server 10, the uninterruptible power supply UPS20, the ac distribution cabinet 30, the dc distribution cabinet 70, and the first power supply apparatus 80 in the above embodiments; the input end of the uninterruptible power supply 20 receives a second alternating current, and the amplitude of the second alternating current is larger than that of the first alternating current; for example, the second alternating current may be 380V commercial power; the alternating current output end of the uninterruptible power supply 20 is electrically connected with the input end of the alternating current power distribution cabinet 30; the direct current output end of the uninterruptible power supply 20 is electrically connected with the first input end of the direct current power distribution cabinet 70; the first input end of the first power supply device 80 is used for accessing a second alternating current, the second input end of the first power supply device 80 is used for accessing an electric signal provided by the new energy power generation module 90, the control end of the first power supply device 80 is connected with the first controller 105 of the server 10 and the control end of the new energy power generation module 90 respectively, and the output end of the first power supply device is connected with the second output end of the direct current power distribution cabinet.

The server 10 includes m first switching power supplies 101, n second switching power supplies 102, k third switching power supplies 103, a load circuit 104, and a first controller 105; illustratively, the controller is a baseboard management controller BMC (BMC) of the server, wherein the m first switching power supplies 101 are connected in parallel, and m is a positive integer greater than or equal to 1; the n second switching power supplies 102 are connected in parallel, wherein n is a positive integer greater than or equal to 1; the k third switching power supplies 103 are connected in parallel, where k is a positive integer greater than or equal to 1. For example, the first, second and third switching power supplies may all be power supply units PSU, e.g., PSU1-PSUm shown in fig. 4 as the first switching power supply, PSU _1-PSU _ n as the second switching power supply, PSU1'-PSUk' as the third switching power supply.

In this embodiment, there may be a plurality of servers, where an ac input terminal of each first switching power supply in each server is connected to a first output terminal of the ac power distribution cabinet, a dc input terminal of each second switching power supply is connected to a first output terminal of the dc power distribution cabinet, a dc input terminal of each third switching power supply is electrically connected to a second output terminal of the dc power distribution cabinet 70, and output terminals of the third switching power supplies 103 are electrically connected to the load circuit and the first controller, respectively.

When determining that the power supply quantity of the new energy power generation module can meet the power supply requirement of the load circuit, each server controls k third switch power supplies to supply power to the load circuit, so that the electric energy provided by the new energy power generation module is distributed to the third switch power supplies through the direct current power distribution cabinet to ensure that the servers work normally; when the power supply quantity of the new energy power generation module cannot meet the power supply requirement of the load circuit, at least one of the first switch power supply, the second switch power supply and the third switch power supply is controlled to supply power to the load circuit, so that at least two of electric energy provided by the new energy power generation module, electric energy provided by the second alternating current, electric energy stored by the first power supply device and electric energy stored by the uninterruptible power supply are supplied to the server through the direct current power distribution cabinet or the alternating current power distribution cabinet to ensure that the service normally works.

It can be understood that, in this embodiment, the input end of the uninterruptible power supply and the first input end of the first power supply device may be connected to the same power supply system that provides the second alternating current, for example, the same utility power supply system, or may be connected to different power supply systems, and those skilled in the art may set the input end according to actual situations, which is not limited herein.

In an alternative embodiment, as shown in fig. 10, the data center includes a plurality of servers, an uninterruptible power supply 20, an ac distribution cabinet 30, a dc distribution cabinet 70, and a first power supply device 80, wherein the servers are divided into a first server 10_1 and a second server 10_2.

A dc input terminal of each first switching power supply 101 in the first server 10_1 is electrically connected to the dc distribution cabinet 70, an ac input terminal of the first switching power supply PSU1-PSUm in the second server 10_2 is connected to a first output terminal of the ac distribution cabinet 30, and output terminals of the first switching power supply PSU1-PSUm are electrically connected to the load circuit 104 and the first controller 105, respectively; the direct current input ends of the second switching power supplies PSU _1-PSU _ n are connected to the first output end of the direct current power distribution cabinet 70, and the output ends of the second switching power supplies PSU _1-PSU _ n are electrically connected to the load circuit 104 and the first controller 105, respectively; the dc input terminal of the third switching power supply PSU1'-PSUk' is electrically connected to the second output terminal of the dc power distribution cabinet 70, and the output terminal of the third switching power supply PSU1'-PSUk' is electrically connected to the load circuit 104 and the first controller 105, respectively.

It can be understood that the first server 10_1 may be a server whose operating state is always in a steady-state operating state, so that the amount of power supply demand of the server is not large, and the first ac power provided by the uninterruptible power supply may always satisfy the power supply demand of the first server without modifying the first server 10_1; the second server 10 _2may be a server that may have a peak operating state, and the power supply demand of the server may greatly increase at a certain time, which increases the operation cost, and the second ac power provided by the uninterruptible power supply may not meet the power supply demand of the second server 10_2, so the second server 10 _2may be improved, so that when the second server 10 _2determines that the power supply capacity of the new energy power generation module may meet the power supply demand of the load circuit, the PSU1'-PSUk' is controlled to be used as the third switching power supply to supply power to the load circuit 104, and thus the electric energy provided by the new energy power generation module 90 is distributed to the third switching power supply 103 through the dc power distribution cabinet 70 to ensure that the server normally operates.

In an alternative embodiment, as shown in fig. 11, the first power supply device 80 includes: a switch 801, a first conversion circuit 802 and a second controller 803, wherein a first input terminal of the switch 801 is connected to a first input terminal of the first power supply device 80, a second input terminal of the switch 801 is connected to a second input terminal of the first power supply device 80, and an output terminal of the switch 801 is connected to an input terminal of the first conversion circuit 802; the output end of the first conversion circuit 802 is connected to the output end of the first power supply device 80, the first conversion circuit 802 is configured to convert the electrical signal provided by the new energy power generation module 90 into a tenth dc voltage and output the tenth dc voltage to the output end of the first power supply device 80 or convert the second ac power into an eleventh dc voltage and output the eleventh dc voltage to the output end of the first power supply device 80, and the output end of the first power supply device 80 is configured to output the tenth dc voltage or the eleventh dc voltage to the first input end of the dc power distribution cabinet 70; the second controller 803 is connected to the control terminal of the switch and the control terminal of the first power supply device, respectively.

And a second controller configured to control conduction between the second input terminal of the switch and the output terminal of the switch in response to the first input voltage control signal from the server.

Considering that the new energy power generation module is easily influenced by the external environment, for example, the new energy power generation module is a photovoltaic power generation module and is influenced by the sunlight intensity, and the stronger the sunlight intensity is, the higher the photovoltaic power generation power is; the weaker the sunlight intensity, the lower the power of the photovoltaic generation. Therefore, the power of the electric energy generated by photovoltaic power generation varies at any time, and if the electric energy is directly output, the power supply of the whole power supply system is unstable. Therefore, in this embodiment, a first conversion circuit is disposed between the switch and the output end of the first power supply device, when the second controller responds to the first input voltage control signal from the server and controls the conduction between the second input end of the switch and the output end of the switch, the first conversion circuit stabilizes the voltage of the electrical signal provided by the new energy power generation module to the tenth dc voltage meeting the output set power and outputs the tenth dc voltage to the dc power distribution cabinet through the output end of the first power supply device, and the dc power distribution cabinet converts the tenth dc voltage into the second dc voltage and provides the second dc voltage to the corresponding third switch power supply through the second output end of the dc power distribution cabinet, so that the server is ensured to operate normally, and the power supply stability of the first power supply device is improved.

It can be understood that the new energy power generation module can be a device for converting renewable energy such as solar energy, wind energy, water energy and the like into electric energy, such as photovoltaic, windmill, small hydropower station and the like. For example, the new energy power generation module is a wind power generation module, and the first conversion circuit may be an alternating current/direct current (AC/DC) conversion circuit, so that alternating current provided by the wind power generation module is converted into tenth direct current voltage meeting the output set power and output to the output end of the first power supply device; or the new energy power generation module is a solar power generation module, and the first conversion circuit can be a direct current/direct current (DC/DC) conversion circuit, so that the direct current provided by the solar power generation module is converted into a tenth direct current voltage meeting the output set power and is output to the output end of the first power supply device to ensure the power supply stability of the first power supply device.

In an alternative embodiment, as shown in fig. 12, the first power supply device 80 further includes a first battery module 804, an input terminal of the first battery module 804 is connected to an output terminal of the first converting circuit 802, an output terminal of the first battery module 804 is connected to an output terminal of the first power supply device 80, and a control terminal of the first battery module 804 is connected to the second controller 803.

In this embodiment, the second controller obtains a power supply amount of the first power supply device, that is, obtains a power supply amount of the first battery module and sends the power supply amount to the first controller of the server, when the first controller of the server monitors that a total power supply amount provided by the new energy power generation module and the first power supply device can meet a power supply requirement of the server, the second controller of the first power supply device sends a second input voltage control signal to the first power supply device, and the second controller of the first power supply device controls the first battery module to output a twelfth dc voltage to an output end of the first power supply device in response to the second input voltage control signal from the server, so as to ensure normal operation of the server.

In an optional embodiment, the second controller is further configured to send an electric quantity indicating signal to the control terminal of the first power supply device if it is detected that the stored electric quantity of the first battery module decreases to the charging threshold, and control the first conversion circuit to convert the electric signal provided by the new energy power generation module into a tenth dc voltage and output the tenth dc voltage to the input terminal of the first battery module.

In this embodiment, if it is detected that the stored power of the first battery module is reduced to the charging threshold, the second controller sends a power indication signal to the control terminal of the first power supply device, adjusts the output voltage of each switching power supply of the server according to the power indication signal to ensure normal operation of the server, and controls the first battery module to be charged. For example, the first conversion circuit is controlled to convert the electric signal provided by the new energy power generation module into a tenth direct-current voltage to be output to the input end of the first battery module, and the first battery module is charged through the tenth direct-current voltage, so that the first battery module can always provide extra electric energy for the server when the power supply amount provided by the new energy power generation module or the power supply amount provided by the second alternating current is insufficient.

It can be understood that, in this embodiment, the charging time and the charging mode of the first battery module may also be set by the second controller, for example, considering that the electricity fee is higher in a peak-valley period than in an average period in a certain area, and the power supply requirement of the server is smaller in the average period, when the stored electricity quantity of the first battery module is reduced to the charging threshold and the new energy power generation module cannot supply power, the second controller may control the first conversion circuit to perform voltage conversion on the second alternating current and supply the converted second alternating current to the first battery module in the average period, thereby further reducing the operation cost of the first power supply device.

In an optional embodiment, the second controller is configured to control conduction between the first input terminal of the switch and the output terminal of the switch in response to a third input voltage control signal from the server, wherein the server sends the third input voltage control signal to the control terminal of the first power supply device if it is determined that the power supply amount of the new energy power generation module is less than the power supply threshold.

In this embodiment, when the first controller of the server monitors that the power supply amount of the new energy power generation module is smaller than the power supply threshold, the first controller of the server sends a third input voltage control signal to the control end of the first power supply device, the second controller of the first power supply device responds to the third input voltage control signal from the server, and controls the conduction between the first input end of the change-over switch and the output end of the change-over switch, so that the first conversion circuit stabilizes the second alternating current to generate an eleventh direct current voltage meeting the output set power and outputs the eleventh direct current voltage to the direct current power distribution cabinet, and the direct current power distribution cabinet converts the eleventh direct current voltage into the second direct current voltage and provides the second direct current voltage to the third switch power supply connected with the second output end of the direct current power distribution cabinet, thereby ensuring the normal operation of the server and improving the power supply stability of the first power supply device.

In an alternative embodiment, as shown in fig. 13, the uninterruptible power supply 20 includes a rectifying circuit 201, an inverter circuit 202, a second converter circuit 203, a second battery module 204, and a bypass circuit 205; the input end of the rectifying circuit 201 is electrically connected with the input end of the bypass circuit 205 and the input end of the uninterruptible power supply 20 respectively; the output end of the rectification circuit 201 is electrically connected with the input end of the inverter circuit 202; the output end of the inverter circuit 202 is electrically connected to the output end of the bypass circuit 205 and the ac output end of the uninterruptible power supply 20, respectively; a first end of the second conversion circuit 203 is connected with an output end of the rectification circuit 201, a second end of the second conversion circuit 203 is electrically connected with a first end of the second battery module 204, and a second end of the second battery module 204 is electrically connected with a direct current output end of the uninterruptible power supply.

In this embodiment, when the server is powered on, first, the rectifying circuit converts the input second alternating current into a thirteenth direct current voltage, and outputs the thirteenth direct current voltage to the input end of the inverter circuit and the input end of the second conversion circuit, respectively, the inverter circuit inversely converts the thirteenth direct current voltage into a first alternating current voltage and outputs the first alternating current voltage to the alternating current distribution cabinet, and the alternating current distribution cabinet converts the first alternating current voltage into a first alternating current, and provides the first alternating current to the corresponding first switching power supply through the first output end of the alternating current distribution cabinet.

And then, a fourteenth direct current voltage is output to the direct current power distribution cabinet through a second end of the second battery module, the direct current power distribution cabinet converts the fourteenth direct current voltage into a first direct current, and the first direct current is provided for the corresponding second switching power supply through a first output end of the direct current power distribution cabinet.

When the second battery module is detected to need to be charged, the second conversion module is controlled to convert the thirteenth direct-current voltage into the fifteenth direct-current voltage and output the fifteenth direct-current voltage to the first end of the second battery module, so that the thirteenth direct-current voltage is converted into the fifteenth direct-current voltage meeting the requirement of rated power to charge the second battery module, and the direct-current power distribution cabinet is ensured to provide a continuous, stable, balanced and safe direct-current power supply environment for the server all the time.

If the rectifying circuit or the inverter circuit is abnormal, namely when the first alternating-current voltage does not meet the input requirement of the alternating-current power distribution cabinet, the bypass circuit transmits the second alternating-current power to the alternating-current output end of the uninterrupted power supply, so that the alternating-current power distribution cabinet can always provide a continuous, stable, balanced and safe alternating-current power supply environment for the server.

It should be noted that, in the present application, the charging time and the charging electric quantity of the second battery module may be set according to an actual situation, for example, when the controller detects that the second battery module is lowered to the charging threshold and the power supply demand of the load circuit is small, the second battery module is controlled to be charged, and the present application is not limited herein.

In an alternative embodiment, as shown in fig. 14, the power supply system of the data center further includes a third converting circuit, an input terminal of the third converting circuit is connected to the output terminal of the uninterruptible power supply 20, and an output terminal of the third converting circuit is connected to the input terminal of the dc power distribution cabinet 70; a third conversion circuit configured to convert the fourteenth direct current voltage to a sixteenth direct current voltage.

In this embodiment, it is considered that the fourteenth dc voltage output by the second battery module may not conform to the input range of the dc power distribution cabinet, and the fourteenth dc voltage output by the second battery module cannot be directly output to the server through the dc power distribution cabinet, so that a third converting circuit needs to be connected between the dc output terminal of the uninterruptible power supply and the dc power distribution cabinet, and when the fourteenth dc voltage output by the second battery module does not satisfy the input range of the dc power distribution cabinet, the fourteenth dc voltage is converted to the sixteenth dc voltage through the third converting circuit, so as to satisfy the input range of the dc power distribution cabinet.

It will be appreciated that in the above embodiments, all or part may be implemented by software, hardware, firmware or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention are brought about in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A server, characterized in that the server comprises m first switched power supplies, n second switched power supplies, k third switched power supplies, a load circuit, and a first controller; the m first switching power supplies are connected in parallel, and m is a positive integer greater than or equal to 1; the n second switching power supplies are connected in parallel, wherein n is a positive integer larger than or equal to 1, and the k first switching power supplies are connected in parallel, wherein k is a positive integer larger than or equal to 1;

each first switching power supply comprises an alternating current input end, an output end and a control end, the alternating current input end of each first switching power supply is electrically connected with the first output end of the alternating current power distribution cabinet, and the output end of each first switching power supply is electrically connected with the load circuit; the control end of each first switching power supply is electrically connected with the corresponding control signal output end of the first controller;

each second switching power supply comprises a direct-current input end, an output end and a control end, the direct-current input end of each second switching power supply is electrically connected with the first output end of the direct-current power distribution cabinet, and the output end of each second switching power supply is electrically connected with the load circuit; the control end of each second switching power supply is electrically connected with the corresponding control signal output end of the first controller;

each third switch power supply comprises a direct current input end, an output end and a control end, the direct current input end of each third switch power supply is electrically connected with the second output end of the direct current power distribution cabinet, and the output end of each third switch power supply is electrically connected with the load circuit; the control end of each third switch power supply is electrically connected with the corresponding control signal output end of the first controller; wherein,

the input end of the alternating current power distribution cabinet is electrically connected with the alternating current output end of the uninterruptible power supply, and the alternating current power distribution cabinet is used for outputting first alternating current to each first switching power supply; a first input end of the direct current power distribution cabinet is electrically connected with a direct current output end of the uninterruptible power supply, a second input end of the direct current power distribution cabinet is electrically connected with an output end of the first power supply device, and the direct current power distribution cabinet is used for outputting a first direct current to each second switch power supply and outputting a second direct current to each third switch power supply; the first input end of the first power supply device is used for accessing a second alternating current, the amplitude of the second alternating current is larger than that of the first alternating current, the second input end of the first power supply device is electrically connected with the new energy power generation module, the control end of the first power supply device is electrically connected with the first controller, and the control end of the first power supply device is used for sending the power supply quantity of the first power supply device to the first controller; the control end of the new energy power generation module is electrically connected with the first controller, and the control end of the new energy power generation module is used for sending the power supply quantity of the new energy power generation module to the first controller;

the first controller is configured to:

and if the power supply quantity of the new energy power generation module meets the power supply requirement of the load circuit, controlling the k third switch power supplies to supply power to the load circuit.

2. The server according to claim 1, wherein determining that the power supply amount of the new energy power generation module meets the power supply requirement of the load circuit, and controlling the k third switching power supplies to supply power to the load circuit comprises: the first controller is configured to:

determining that the power supply quantity of the new energy power generation module meets the power supply requirement of the load circuit, and sending a first input voltage control signal to a control end of the first power supply device, wherein the first input voltage control signal is used for controlling the conduction between a second input end of the first power supply device and an output end of the first power supply device;

controlling the first switching power supply to output a first direct current voltage, controlling the second switching power supply to output a second direct current voltage, and controlling the third switching power supply to output a third direct current voltage; the first and second dc voltages are less than the third dc voltage.

3. The server according to claim 1 or 2, wherein the first controller is configured to:

if the power supply quantity of the new energy power generation module cannot meet the power supply requirement of the load circuit, acquiring the power supply quantity of a first power supply device;

determining that the total power supply quantity of the first power supply device and the new energy power generation module meets the power supply requirement of the load circuit, and sending a second input voltage control signal to the control end of the first power supply device;

controlling the first switching power supply to output a first direct current voltage, controlling the second switching power supply to output a second direct current voltage, and controlling the third switching power supply to output a third direct current voltage; the first direct current voltage and the second direct current voltage are both smaller than the third direct current voltage.

4. The server of claim 3, wherein the first controller is configured to:

and if the total power supply amount of the first power supply device and the new energy power generation module cannot meet the power supply requirement of the load circuit, controlling the third switch power supply and the first switch power supply or the third switch power supply and the second switch power supply to supply power for the load circuit.

5. The server of claim 4, wherein the first controller is configured to:

if the total power supply amount of the first power supply device and the new energy power generation module is determined to be incapable of meeting the power supply requirement of the load circuit, controlling the third switch power supply and the first switch power supply to supply power for the load circuit, and the method comprises the following steps:

the first controller configured to:

if the difference value between the total power supply quantity of the first power supply device and the new energy power generation module and the power supply demand of the load circuit is determined to be smaller than or equal to a first threshold value, the first switching power supply is controlled to output a fourth direct current voltage, the second switching power supply is controlled to output a fifth direct current voltage, and the third switching power supply is controlled to output a sixth direct current voltage, wherein the fifth direct current voltage is equal to the sixth direct current voltage, and the fifth direct current voltage is larger than the fourth direct current voltage.

6. The server of claim 4, wherein the first controller is configured to:

if the total power supply amount of the first power supply device and the new energy power generation module is determined to be incapable of meeting the power supply requirement of the load circuit, controlling the third switch power supply and the second switch power supply to supply power for the load circuit, and the method comprises the following steps:

if the difference value between the total power supply quantity of the first power supply device and the new energy power generation module and the power supply requirement of the load circuit is larger than a first threshold value, controlling the first switching power supply to output a fourth direct current voltage, controlling the second switching power supply to output a fifth direct current voltage, and controlling the third switching power supply to output a sixth direct current voltage, wherein the fourth direct current voltage is equal to the sixth direct current voltage, and the fourth direct current voltage is larger than the fifth direct current voltage.

7. The server according to any one of claims 4 to 6, wherein the first controller is configured to control the first switching power supply to output a seventh direct-current voltage, control the second switching power supply to output an eighth direct-current voltage, and control the third switching power supply to output a ninth direct-current voltage in response to the power indication signal from the first power supply device, wherein the seventh direct-current voltage is greater than the eighth direct-current voltage and the ninth direct-current voltage.

8. A power supply system for a data center, comprising: the server, uninterruptible power supply, first power supply, ac distribution cabinet, and dc distribution cabinet of any of claims 1-7;

the input end of the uninterruptible power supply receives a second alternating current, and the amplitude of the second alternating current is larger than that of the first alternating current; the alternating current output end of the uninterruptible power supply is electrically connected with the input end of the alternating current power distribution cabinet; the direct current output end of the uninterruptible power supply is electrically connected with the first input end of the direct current power distribution cabinet; the first input end of the first power supply device is used for accessing a second alternating current, the second input end of the first power supply device is used for accessing an electric signal provided by the new energy power generation module, the control end of the first power supply device is respectively connected with the control end of the first controller and the control end of the new energy power generation module, and the output end of the first power supply device is connected with the second output end of the direct current power distribution cabinet.

9. The power supply system according to claim 8, wherein the first power supply device includes: a switch, a first conversion circuit and a second controller, wherein

A first input end of the change-over switch is electrically connected with a first input end of the first power supply device, a second input end of the change-over switch is electrically connected with a second input end of the first power supply device, and an output end of the change-over switch is electrically connected with an input end of the first conversion circuit;

the output end of the first conversion circuit is electrically connected with the output end of the first power supply device, the first conversion circuit is used for converting an electric signal provided by a new energy power generation module into a tenth direct-current voltage and outputting the tenth direct-current voltage to the output end of the first power supply device or converting the second alternating current into an eleventh direct-current voltage and outputting the eleventh direct-current voltage to the output end of the first power supply device, and the output end of the first power supply device is used for outputting the tenth direct-current voltage or the eleventh direct-current voltage to the second input end of the direct-current power distribution cabinet;

the second controller is respectively electrically connected with the control end of the change-over switch and the control end of the first power supply device;

the second controller is configured to control conduction between the second input terminal of the switch and the output terminal of the switch in response to a first input voltage control signal from a server.

10. The power supply system of claim 9, wherein the first power supply device further comprises a first battery module, an input terminal of the first battery module is electrically connected to an output terminal of the first converting circuit, an output terminal of the first battery module is electrically connected to an output terminal of the first power supply device, and a control terminal of the first battery module is electrically connected to the second controller;

the second controller is further configured to acquire a power supply amount of the first power supply device, and control the first battery module to output a twelfth direct-current voltage to the output terminal of the first power supply device in response to a second input voltage control signal from the server.

11. The power supply system according to claim 10, wherein the second controller is further configured to send a power indication signal to the control terminal of the first power supply device if it is detected that the stored power of the first battery module is reduced to the charging threshold, and control the first converting circuit to convert the electrical signal provided by the new energy power generation module into a tenth dc voltage and output the tenth dc voltage to the input terminal of the first battery module.

12. The power supply system of claim 9, wherein the second controller is further configured to control conduction between the first input terminal of the switch and the output terminal of the switch in response to a third input voltage control signal from the server, and wherein the server sends the third input voltage control signal to the control terminal of the first power supply device if it is determined that the power supply amount of the new energy power generation module is smaller than the power supply threshold.