CN210806838U - Communication power supply system - Google Patents

Abstract

The utility model discloses a communication power supply system. Wherein, the system includes: a first communication power supply system, the first communication power supply system includes: a first AC power distribution device for distributing and outputting AC power; a first power supply for converting AC signals into DC signals High-frequency switching power supply equipment, the first high-frequency switching power supply equipment has at least two first AC busbar interfaces; the at least two first AC busbar interfaces are used to connect to at least two independent first alternating currents; the first a DC power distribution device, connected to the first high-frequency switching power supply device, for receiving a first DC signal output from the first high-frequency switching power supply device, and distributing the first DC signal to a load; The first battery module is connected to the first high-frequency switching power supply device, and is used for storing electric energy. The utility model solves the technical problem that the safety of the communication power supply system cannot be improved at present due to the limitation of the power supply technology in the related art.

Description

Communication power system

technical field

The utility model relates to the safety field of communication power supplies, in particular to a communication power supply system.

Background technique

In the related art, when setting the power supply system for the communication equipment, only the stability of the power supply itself is often considered, that is, the power supply system is designed and produced by enhancing the stability of the power supply itself. However, with the development of power supply technology, the current power supply design There are certain bottlenecks in the solution. In this case, how to improve the security of the power supply system of the communication equipment has become an urgent problem to be solved.

For the above problems, no effective solution has been proposed yet.

Utility model content

The embodiment of the present invention provides a communication power supply system to at least solve the technical problem in the related art that the security of the communication power supply system cannot be improved at present due to the limitation of the power supply technology.

According to an aspect of the embodiments of the present invention, a communication power supply system is provided, including: a first communication power supply system, wherein the first communication power supply system includes: a first AC power distribution device for distributing and outputting AC power ; A first high-frequency switching power supply device for converting an AC signal into a DC signal, the first high-frequency switching power supply device has at least two first AC bus interfaces; the at least two first AC bus interfaces are used is connected to at least two independent first alternating currents; the first direct current power distribution equipment is connected to the first high frequency switching power supply equipment, and is used for receiving the first direct current output from the first high frequency switching power supply equipment signal, and distributes the first direct current signal to the load; the first battery module is connected to the first high-frequency switching power supply device, and is used for storing electric energy.

Optionally, the communication power supply system further includes: a first automatic transfer switching equipment (Automatic Transfer Switching Equipment, ATS for short), one end is connected to the at least two independent first alternating currents, and the other end is connected to the at least two first alternating currents. The AC bus interface is connected to switch the available power supply between the at least two independent first AC power sources.

Optionally, the first automatic transfer switching device is integrated inside the first high-frequency switching power supply device.

Optionally, as shown in FIG. 3 , the communication power supply system further includes: a second communication power supply system connected in parallel with the first communication power supply system, the second communication power supply system includes: the second communication power supply system includes: The second AC power distribution device is used for distributing and outputting the AC power; the second high-frequency switching power supply device used for converting the AC signal into the DC signal, the second high-frequency switching power supply device has a device for connecting at least two at least two AC busbar interfaces for independent second AC power; a second DC power distribution device, connected to the second high-frequency switching power supply device, for receiving the second output from the second high-frequency switching power supply device A direct current signal, and the second direct current signal is distributed to the load; a second battery module is connected to the second high-frequency switching power supply device for storing electric energy.

Optionally, the communication power supply system further includes: a second automatic transfer switch device, one end of which is connected to the at least two independent second alternating currents, and the other end is connected to the at least two second alternating current busbar interfaces, and is used for The power supply is switchable between the at least two independent second alternating currents.

Optionally, the communication power supply system further includes: at least one monitoring device, connected with the first high-frequency switching power supply device, the second high-frequency switching power supply device, the first DC power distribution device, the second DC power distribution device, and the first battery. The module is connected to at least one of the second battery modules, and is used to monitor electrical signals of at least one of the following: the first high-frequency switching power supply equipment, the second high-frequency switching power supply equipment, the first DC power distribution equipment, A second DC power distribution device, a first battery module, and a second battery module.

Optionally, the communication power supply system further includes: a third DC power distribution device, the third DC power distribution device and the first DC power distribution device are connected in parallel on the incoming side, and the third DC power distribution device is connected in parallel. The device is connected to the load for distributing electrical energy to the load when the first DC power distribution equipment fails; a fourth DC power distribution device, the fourth DC power distribution device and the second DC power distribution device The DC power distribution equipment is connected in parallel on the incoming line side, and the fourth DC power distribution equipment is connected to the load for distributing electric energy to the load when the second DC power distribution equipment fails.

Optionally, a switch circuit is provided between the first DC power distribution device and the second DC power distribution device and the load.

Optionally, the switch circuit includes: a switch diode.

Optionally, the communication power supply system further includes: a first group of uninterrupted power supply (Uninterrupted PowerSupply, UPS for short) power supplies and a second group of UPS power supplies, the first group of UPS power supplies are respectively connected with the first AC power distribution equipment and the The second AC power distribution equipment is connected, wherein the UPS power sources in the first group of UPS power sources are mutually backup, and the UPS power sources in the second group of UPS power sources are mutually backup.

In the embodiment of the present invention, the first high-frequency switching power supply device is provided with at least two bus interfaces (ie, the first AC bus interface) for connecting to two independent second alternating currents, so that the When one AC power supply line fails, another AC power supply line is used for power supply, which improves the safety and reliability of the communication power supply system. In addition, the communication power supply system in the embodiment of the present application is further provided with a first battery module, It can also maintain the operation of the communication equipment, further improve the security of the communication power supply system, and further solve the technical problem that the current security of the communication power supply system cannot be improved due to the limitation of the power supply technology in the related art.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the present invention and constitute a part of the present application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic structural diagram of a communication power supply system according to an embodiment of the present application;

2 is a schematic structural diagram of an optional communication power supply system according to an embodiment of the present invention;

3a is a schematic structural diagram of another optional communication power supply system according to an embodiment of the present invention;

3b is a schematic structural diagram of another optional communication power supply system according to an embodiment of the present invention;

4 is a schematic structural diagram of another optional communication power supply system according to an embodiment of the present invention;

5 is a schematic structural diagram of another optional communication power supply system according to an embodiment of the present invention;

6 is a schematic structural diagram of a communication power supply system using a UPS power supply according to an embodiment of the present invention;

7 is a schematic structural diagram of another communication power supply system using a UPS power supply according to an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. . It is to be understood that the data so used may be interchanged under appropriate circumstances so that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

In order to facilitate the understanding of the embodiments of the present application, the technical terms involved in the embodiments of the present application are briefly described as follows:

Communication power supply is a device that provides DC power supply to communication equipment. The commonly used communication power supply uses power semiconductor devices as high-frequency conversion switches, which are isolated by high-frequency transformers to form -48V high-frequency switching power supplies that convert AC into DC. The communication power supply described in the embodiments of the present application may be a -48V high-frequency switching power supply.

The communication power supply system consists of AC power distribution panel (optional), high frequency switching power supply panel, DC distribution panel (cabinet), battery pack (cabinet) and other units. Each set of communication high-frequency switching power supply system should include at least one high-frequency switching power supply panel, one battery pack, and one DC power distribution panel should be configured.

UPS is an uninterruptible power supply, which is a constant voltage and constant frequency power supply device containing an energy storage device (battery bank) and an inverter as the main component. It is mainly used to provide a single computer, computer network system or other information equipment. Uninterrupted power. The commonly used UPS is online, that is, the inverter always provides the required power to the load, and can achieve zero switching time in the event of an AC power failure.

Online UPS is divided into modular UPS and tower UPS. Modular UPS can be configured with multiple power modules and has redundancy. When one power module fails and the load power does not exceed the total capacity of the remaining modules, it will not affect the equipment. normal power supply. The tower UPS does not have redundancy. When the UPS inverter fails and shuts down, the line will switch to the bypass mains power supply mode and lose power protection. Therefore, the UPS running on a single machine should adopt a modular UPS, and the tower UPS should be used in parallel.

The UPS should have automatic (static bypass) and manual (maintenance bypass) bypass devices. Among them, the static bypass device is inside the UPS host and consists of static switches such as thyristors. The maintenance bypass device is usually an ordinary AC circuit breaker, which can bypass the components inside the UPS host to supply power to the load.

There are three types of DC power distribution equipment: the first is a DC double-busbar power distribution panel in which two sets of communication power supplies are connected in parallel at the input end through diodes, referred to as the input side switching DC double-busbar power distribution panel. The second type is the DC double bus power distribution panel in which two sets of communication power supplies are connected in parallel on the load side through diodes, referred to as the output side switching DC double bus power distribution panel. The third type is the DC double busbar power distribution panel with bus tie switch.

FIG. 1 is a schematic structural diagram of a communication power supply system according to an embodiment of the present application. As shown in Figure 1, the communication power system includes:

The first communication power system 1 includes: a first AC power distribution device 10 for distributing and outputting AC power; a first high-frequency switching power supply device 12 for converting AC signals into DC signals , the first high-frequency switching power supply device 12 has at least two first AC busbar interfaces 120; at least two first AC busbar interfaces 120 are used to connect at least two independent first AC power; the first DC power distribution A device 14, connected to the first high-frequency switching power supply device 12, is used to receive the first DC signal output from the first high-frequency switching power supply device 12, and distribute the first DC signal to a load (for example, the load in FIG. 1 ). 1 and load 2); the first battery module 16 is connected to the first high-frequency switching power supply device 12 for storing electrical energy.

In some embodiments of the present application, as shown in FIG. 2 , the communication power supply system further includes: a first automatic transfer switch device 18 , one end of which is connected to at least two independent first alternating currents, and the other end is connected to at least two first alternating currents. The bus bar interface 120 is connected and used for switching the available power supply between at least two independent first alternating currents. Wherein, the power supply is from at least two independent power sources corresponding to the first alternating current.

In some embodiments of the present application, the first automatic transfer switching device 18 may be integrated inside the first high-frequency switching power supply device 12, for example, integrated inside the first high-frequency switching power supply device 12 shown in FIG. (not shown), and can also be set independently from the first high-frequency switching power supply device 12, as shown in FIG. 2 .

Optionally, as shown in FIG. 3a, the communication power supply system further includes: a second communication power supply system 2 connected in parallel with the first communication power supply system 1, the second communication power supply system 2 includes: the second communication power supply system 2 includes: a second communication power supply system 2 The AC power distribution device 20 is used for distributing and outputting the AC power; the second high-frequency switching power supply device 22 for converting the AC signal into the DC signal, the second high-frequency switching power supply device 22 has a device for connecting at least At least two AC busbar interfaces 220 for two independent second AC power sources; the second DC power distribution device 24 is connected to the second high-frequency switching power supply device 22 for receiving the first output from the second high-frequency switching power supply device 22 . The second DC signal is distributed to the load; the second battery module 26 is connected to the second high-frequency switching power supply device 22 for storing electric energy.

The relationship between the discharge current of the battery pack and the terminal voltage and capacity of the battery pack is not linear. Under different discharge currents, the battery capacity calculated by "discharge current * discharge time" is different. Therefore, the capacity of the battery pack refers to the capacity at the 10h discharge rate. Generally, the smaller the battery discharge current, the larger the calculated battery capacity; the larger the battery discharge current, the smaller the calculated battery capacity.

As shown in Figure 3b, one end of the first DC power distribution device is connected to a load on the second AC power distribution device, and an output end of the second DC power distribution device is connected to a load on the first AC power distribution device. The two AC power inputs of each set of communication power supply should be powered by two power supplies from different AC bus bars (different high-voltage lines), and the DC load with dual power input should be powered by two sets of communication power supplies respectively.

In some optional embodiments of the present application, having two sets of communication power supply systems may also be shown in a parallel connection manner as shown in FIG. 3b, wherein, for the convenience of viewing, AC power distribution equipment is omitted.

In some embodiments of the present application, as shown in FIG. 3a, the communication power supply system further includes: a second automatic transfer switch device 28, one end of which is connected to at least two independent second alternating currents, and the other end is connected to at least two second alternating currents. The bus bar interface 220 is connected and used to switch the available power supply between at least two independent second alternating currents.

In some embodiments of the present application, as shown in FIG. 4 , the communication power supply system further includes: at least one monitoring device 40 , connected with the first high-frequency switching power supply device 12 , the second high-frequency switching power supply device 22 , the first direct current At least one of the power distribution equipment 14 , the second DC power distribution equipment 24 , the first battery module 16 and the second battery module 26 is connected to monitor the electrical signal of at least one of the following: the first high-frequency switching power supply The device 12 , the second high frequency switching power supply device 22 , the first DC power distribution device 14 , the second DC power distribution device 24 , the first battery module 16 and the second battery module 26 .

It should be noted that the number of monitoring devices can be multiple, that is, the first high-frequency switching power supply device 12, the second high-frequency switching power supply device 22, the first DC power distribution device 14, the second DC power distribution device 24, The first battery module 16 and the second battery module 26 may respectively correspond to one monitoring device 40 , or any two or three or four devices may share one monitoring device 40 . The monitoring equipment 40 includes, but is not limited to, a current transformer, a voltage transformer, a universal meter, and the like. When the monitoring device detects that the signal is abnormal (for example, the voltage is greater than the threshold), an alarm is issued.

Specifically, two AC input voltages are collected at the input side of each communication power supply; DC output voltages are collected at the outlet side of any idle output switch of each DC power distribution cabinet; When any one of the AC and DC acquisitions loses voltage, or the terminal voltage of the communication battery pack is lower than 50V, the monitoring equipment immediately sends out an alarm message.

Optionally, as shown in FIG. 5, the communication power supply system further includes: a third DC power distribution device 50, the third DC power distribution device and the first DC power distribution device 14 are connected in parallel on the incoming side, and the third DC power distribution device The power distribution device 50 is connected to the load for distributing electrical energy to the load when the first DC power distribution device 14 fails; the fourth DC power distribution device 52, the fourth DC power distribution device 52 and the second DC power distribution device 24 are connected in parallel on the incoming line side, and the fourth DC power distribution device 52 is connected to the load for distributing electrical energy to the load when the second DC power distribution device 24 fails.

When a set of the first or second type of DC double-busbar power distribution panel is used in the communication station, and there is a spare DC power distribution panel (DC power distribution equipment) in the computer room, the following improvements can be made: Build a new set of DC power distribution panels Remove one -48V DC input cable in the double-busbar panel (ie, the first or second DC power distribution equipment), connect this power supply to the newly-built DC power distribution panel, and use parallel cables to connect the two main inputs in the double-busbar panel The switch is connected in parallel on the incoming side, and at the same time, the other power supply of the load equipment is reconnected to the new DC power distribution panel (ie the third or fourth DC power distribution equipment)

As shown in FIG. 5 , a switch circuit 54 is provided between the first DC power distribution device and the second DC power distribution device and the load. Optionally, the switch circuit 54 includes, but is not limited to, a switch diode.

As shown in FIG. 6 , optionally, the communication power supply system further includes: a first group of uninterrupted power supply (Uninterrupted Power Supply, UPS for short) power supplies 60 and a second group of UPS power supplies 62 , the first group of UPS power supplies 60 and the second group of UPS power supplies The UPS power sources 62 are respectively connected to the first AC power distribution equipment 10 and the second AC power distribution equipment 24 , wherein the UPS power sources in the first group of UPS power sources 60 are mutually backup, and the UPS power sources in the second group of UPS power sources 62 are mutually backup. backup.

In some embodiments of the present application, two different distribution transformers from different high-voltage bus bars can be used to supply power to the above two groups of UPS devices, and ATS (automatic transfer switch) devices 70 can be used to automatically switch the dual power supplies. See how it works.

In some embodiments, as shown in FIG. 7 , a UPS bypass circuit 787 may also be included. The UPS bypass circuit is used for maintenance. It is advisable to use a line with a different source from the main power supply of the UPS to be connected independently. The alternating current can be switched by using the ATS device 80 , see FIG. 7 for details. It should be noted that the battery pack 76 and the AC power distribution equipment 72 may also be included in FIG. 7 , wherein the circuit parts between the AC power distribution equipment 72 and the load (for example, the high-frequency switching power supply and the quality power distribution equipment, etc.) are shown in FIG. is not shown, but can be seen in Figures 1-6.

In an application scenario, two different distribution transformers from different high-voltage busbars should be used to supply power to the UPS parallel system, and ATS (automatic transfer switch) should be used for automatic switching of dual power supplies. See the complete system operation mode. Or use two different distribution transformers from different high-voltage buses to supply power to two UPSs in the parallel system, and use the same distribution transformer under the same high-voltage bus to provide bypass power for the UPS parallel system.

In the above-mentioned embodiments of the present invention, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are only illustrative, for example, the division of the units may be a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of units or modules, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. These improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (10)

1. A communication power supply system, comprising: a first communication power supply system, the first communication power supply system comprising: The first AC power distribution device, used for distributing and outputting the AC power; A first high-frequency switching power supply device for converting an AC signal into a DC signal, the first high-frequency switching power supply device has at least two first AC bus interfaces; the at least two first AC bus interfaces are used for Access at least two independent first alternating currents; The first DC power distribution device is connected to the first high-frequency switching power supply device, and is used for receiving the first DC signal output from the first high-frequency switching power supply device, and distributing the first DC signal to load; The first battery module is connected to the first high-frequency switching power supply device, and is used for storing electric energy. 2 . The communication power supply system according to claim 1 , further comprising: a first automatic transfer switch device, one end of which is connected to the at least two independent first alternating currents, and the other end is connected to the at least two first alternating currents. 3 . An AC bus interface is connected for switching the power supply between the at least two independent first AC power sources. 3 . The communication power supply system according to claim 2 , wherein the first automatic transfer switch device is integrated inside the first high frequency switching power supply device. 4 . 4. The communication power supply system according to claim 1, further comprising: a second communication power supply system connected in parallel with the first communication power supply system, the second communication power supply system comprising: The second communication power supply system includes: a second AC power distribution device for distributing and outputting the AC power; a second high-frequency switching power supply device for converting an alternating current signal into a direct current signal, the second high-frequency switching power supply device having at least two AC busbar interfaces for accessing at least two independent second alternating currents; A second DC power distribution device, connected to the second high-frequency switching power supply device, for receiving a second DC signal output from the second high-frequency switching power supply device, and distributing the second DC signal to the load ; The second battery module is connected to the second high-frequency switching power supply device, and is used for storing electric energy. 5 . The communication power supply system according to claim 4 , further comprising: a second automatic transfer switch device, one end of which is connected to the at least two independent second alternating currents, and the other end is connected to the at least two second alternating currents. 6 . The two AC busbar interfaces are connected, and are used for switching the power supply between the at least two independent second AC power sources. 6 . The communication power supply system according to claim 4 , further comprising: at least one monitoring device, connected with the first high-frequency switching power supply device, the second high-frequency switching power supply device, the first high-frequency switching power supply device, and the first high-frequency switching power supply device. At least one of the DC power distribution equipment, the second DC power distribution equipment, the first battery module and the second battery module is connected to monitor electrical signals of at least one of the following: the The first high-frequency switching power supply equipment, the second high-frequency switching power supply equipment, the first DC power distribution equipment, the second DC power distribution equipment, the first battery module and the second battery module . 7. The communication power supply system according to claim 4, further comprising: A third DC power distribution device, the third DC power distribution device and the first DC power distribution device are connected in parallel on the incoming side, and the third DC power distribution device is connected to the load for When the first DC power distribution equipment is faulty, distribute electric energy to the load; Fourth DC power distribution equipment, the fourth DC power distribution equipment and the second DC power distribution equipment are connected in parallel on the incoming side, and the fourth DC power distribution equipment is connected to the load for When the second DC power distribution equipment is faulty, power is distributed to the load. 8 . The communication power supply system according to claim 7 , wherein a switch circuit is provided between the first DC power distribution device and the second DC power distribution device and the load. 9 . 9 . The communication power system according to claim 8 , wherein the switch circuit comprises: a switch diode. 10 . 10 . The communication power system according to claim 4 , further comprising: a first group of UPS power supplies and a second group of UPS power supplies, the first group of UPS power supplies being connected to the first AC power distribution equipment and the first AC power distribution equipment, respectively. 11 . The second AC power distribution equipment is connected, wherein the UPS power sources in the first group of UPS power sources are mutually backup, and the UPS power sources in the second group of UPS power sources are mutually backup.

Images