CN106774760A - A kind of power supply cabinet, electric power system and method - Google Patents

Abstract

The invention provides a kind of power supply cabinet, electric power system and method, the power supply cabinet includes：At least two power supply modules and power management bus, wherein, connected by the power management bus between each described power supply module；Each described power supply module, for when for outside load supplying, monitor the powers duration of itself, when the powers duration reach it is default have holidays by turns threshold value when, by the power management bus, obtain the ruuning situation of other power supply modules of connection, according to the ruuning situation, judge whether the power supply module in holding state, if, enabled instruction is then sent to the power supply module in holding state, after the power supply module in holding state starts, then itself stops the load supplying for the outside.It is balanced that the scheme that the present invention is provided ensure that each power supply module is used.

Description

A power supply cabinet, power supply system and method

technical field

The invention relates to the technical field of communication, and in particular to a power supply cabinet, a power supply system and a method.

Background technique

In order to be able to provide stable power to servers in the data center, the data center often provides power to the servers in a redundant power supply manner, so as to meet the power consumption requirements of the servers under different load conditions.

During the redundant power supply process, multiple power supply units (power supply units, PSUs) supply power to each running load such as a fan running in a server. When the load decreases, one or some power supply modules are often randomly turned off to reduce power waste. Due to the randomness of turning off the power supply modules, some power supply modules often run continuously, while others are often in a closed state, resulting in unbalanced use among the power supply modules.

Contents of the invention

Embodiments of the present invention provide a power supply cabinet, a power supply system and a method, which ensure balanced usage of each power supply module.

A power supply cabinet, comprising: at least two power supply modules and a power management bus, wherein,

Each of the power supply modules is connected through the power management bus;

Each of the power supply modules is configured to monitor its own power supply duration when supplying power to an external load, and obtain other connected power supplies through the power management bus when the power supply duration reaches a preset shift threshold According to the operation status of the module, it is judged whether there is a power supply module in the standby state according to the operation status, and if so, a start command is sent to the power supply module in the standby state, and when the power supply module in the standby state is started, Then it stops supplying power to the external load by itself.

Preferably, each of the power supply modules includes: a monitoring subunit and a timer, wherein,

The monitoring subunit is used to monitor the running state, and trigger and start the timer when it is detected that the running state changes from the standby state to the power supply state; when it is detected that the running state changes from the power supply state to the standby state , triggering to stop the timer;

The timer is used to start timing when receiving the trigger start of the monitoring subunit, and the timing duration is the power supply duration; when receiving the trigger stop of the monitoring subunit, stop timing and return to zero .

Preferably, each of the power supply modules has a corresponding digital identification, which is further used for:

When supplying power to an external load, monitor the output current in real time, and when the output current is greater than the preset first current threshold, judge whether there is a power supply module in the standby state according to the operating conditions, and if so, send The start command gives the power supply module with the smallest digital identification in the standby state.

Preferably, each of the power supply modules is further used for:

When in the standby state, when receiving the startup instructions through the power management bus, determine the number of the startup instructions received, and judge whether the number of the startup instructions is the same as the number of the startup instructions in the power supply state according to the operation situation The number of power supply modules is the same, and if yes, start up to supply power to the load of the peripheral device.

Preferably, each of the power supply modules is further configured to: when supplying power to an external load, when it is detected that the output current is less than the preset second current threshold, then send a stop instruction to the digital identification in the power supply state Largest power supply module.

A power supply system, comprising: at least one power supply cabinet as described above and at least one load, wherein,

The at least one power supply cabinet is configured to provide redundant power supply for the at least one load.

A power supply method, which connects each power supply module through a power management bus, and further includes:

When a target power supply module supplies power to an external load, monitor its own power supply duration;

When the duration of the power supply reaches a preset shift threshold, the operating conditions of other connected power supply modules are obtained through the power management bus;

According to the operation situation, it is judged whether there are other power supply modules in the standby state, and if so, a start command is sent to the other power supply modules in the standby state, and when the power supply module in the standby state is started, it stops itself supply power to the external load.

Preferably, the monitoring of its own power supply duration includes:

Monitoring the running state, when it is detected that the running state has changed from the standby state to the power supply state, the timer is triggered to start counting, and the timing duration is the power supply duration;

After the self stops supplying power to the external load, further comprising:

When it is detected that the operating state changes from the power supply state to the standby state, the timer is triggered to stop counting and reset to zero.

Preferably, the above method further comprises:

Assigning a corresponding digital identifier to each of the power supply modules;

When the target power supply module supplies power to an external load, monitor the output current in real time;

When the output current is greater than the preset first current threshold, it is judged whether there is a power supply module in the standby state, and if so, a start command is sent to the power supply module in the standby state with the smallest digital identifier;

When the power supply module with the smallest digital identifier in the standby state receives the startup instruction through the power management bus, it determines the number of the startup instructions received, and judges whether the number of the startup instructions is the same as that of the power supply module in the power supply state. The number of the modules is the same, and if so, start up to supply power to the load of the peripheral device.

Preferably, the above method further comprises:

When the target power supply module is supplying power to an external load, when it is detected that the output current is less than the preset second current threshold, a stop command is sent to the power supply module in the power supply state with the largest digital identifier.

Embodiments of the present invention provide a power supply cabinet, a power supply system and a method. Since each of the power supply modules is connected through the power management bus, each power supply module can directly communicate with each other, and each of the power supply modules , used to monitor its own power supply duration when supplying power to an external load, and when the power supply duration reaches a preset shift threshold, obtain the operation status of other connected power supply modules through the power management bus, according to For the operation status, it is judged whether there is a power supply module in the standby state, and if so, a start command is sent to the power supply module in the standby state, and when the power supply module in the standby state is started, it stops to serve as the power supply module in the standby state. For external load power supply, through the above-mentioned monitoring of the power supply duration, and when the power supply duration reaches the rotation threshold, the power supply module in the standby state is started, and the power supply module whose power supply duration reaches the rotation threshold stops supplying power, ensuring that the use of each power supply module is balanced.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of a power supply cabinet provided by an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a power supply cabinet provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a power supply system provided by an embodiment of the present invention;

Fig. 4 is a flowchart of a power supply method provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a power supply cabinet provided by an embodiment of the present invention;

Fig. 6 is a flowchart of a power supply method provided by an embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

As shown in FIG. 1 , an embodiment of the present invention provides a power supply cabinet, including: at least two power supply modules 101 and a power management bus 102, wherein,

Each of the power supply modules 101 is connected through the power management bus 102;

Each of the power supply modules 101 is configured to monitor its own power supply duration when supplying power to an external load, and when the power supply duration reaches a preset shift threshold, obtain all other connected power supply modules through the power management bus 102 According to the operation status of the power supply module 101, it is judged whether there is a power supply module 101 in the standby state according to the operation status, and if so, an activation command is sent to the power supply module 101 in the standby After the power supply module 101 is started, it stops supplying power to the external load by itself.

In the embodiment shown in Fig. 1, since the power supply modules are connected through the power management bus, the power supply modules can directly communicate with each other, and each of the power supply modules is used as an external When the load supplies power, monitor its own power supply duration, and when the power supply duration reaches the preset shift threshold, obtain the operation status of other connected power supply modules through the power management bus, and judge whether to There is a power supply module in the standby state, if so, send a startup command to the power supply module in the standby state, and when the power supply module in the standby state is started, it stops supplying power to the external load by itself, through the above The power supply duration is monitored, and when the power supply duration reaches the rotation threshold, the power supply module in the standby state is started, and the power supply module whose power supply duration reaches the rotation threshold stops supplying power, ensuring that the use of each power supply module is balanced.

As shown in FIG. 2, in another embodiment of the present invention, each of the power supply modules 101 includes: a monitoring subunit 1011 and a timer 1012, wherein,

The monitoring subunit 1011 is used to monitor the running state, and when it is detected that the running state changes from the standby state to the power supply state, the timer 1012 is triggered to start; when it is detected that the running state changes from the power supply state to the standby state state, trigger to stop the timer 1012;

The timer 1012 is used to start timing when receiving the trigger start of the monitoring subunit 1011, and the timing duration is the power supply duration; when receiving the trigger stop of the monitoring subunit 1011, stop timing, and return to zero.

In yet another embodiment of the present invention, each of the power supply modules 101 has a corresponding digital identification, which is further used for:

When supplying power to an external load, monitor the output current in real time, and when the output current is greater than the preset first current threshold, judge whether there is a power supply module in the standby state according to the operating conditions, and if so, send The start command gives the power supply module with the smallest digital identification in the standby state.

In another embodiment of the present invention, each of the power supply modules 101 is further used for:

When in the standby state, when receiving the startup instructions through the power management bus, determine the number of the startup instructions received, and judge whether the number of the startup instructions is the same as the number of the startup instructions in the power supply state according to the operation situation The number of power supply modules is the same, and if yes, start up to supply power to the load of the peripheral device.

In yet another embodiment of the present invention, each of the power supply modules 101 is further configured to: when supplying power to an external load, when it is detected that the output current is less than the preset second current threshold, send a stop command The number in the power supply state identifies the largest power supply module 101 .

In addition, in an embodiment of the present invention, the power management bus may be a PMBUS bus.

As shown in FIG. 3 , an embodiment of the present invention provides a power supply system, including: at least one power supply cabinet 301 described above and at least one load 302, wherein,

The at least one power supply cabinet 302 is configured to provide redundant power supply for the at least one load 302 .

As shown in FIG. 4, an embodiment of the present invention provides a power supply method, and the power supply method may include the following steps:

Step 401: Connect each power supply module through a power management bus;

Step 402: When a target power supply module supplies power to an external load, monitor its own power supply duration;

Step 403: When the power supply duration reaches a preset shift threshold, obtain the operation status of other connected power supply modules through the power management bus;

Step 404: According to the operation situation, judge whether there are other power supply modules in standby state, if yes, execute step 405; otherwise, execute step 406;

Step 405: Send a startup command to the other power supply modules in the standby state, and when the power supply module in the standby state is started, it stops supplying power to the external load by itself, and ends the current process;

Step 406: Keep the current power supply state.

In an embodiment of the present invention, in order to realize the monitoring of the power supply duration and ensure the accuracy of the duration, the implementation of step 402 to monitor its own power supply duration may include: monitoring the operating state, when the monitored operating state changes from When the standby state changes to the power supply state, the timer is triggered to start counting, and the timing duration is the power supply duration; after step 405, it further includes: when it is detected that the operating state changes from the power supply state to the standby state, triggering to stop the timer The timer stops counting and resets to zero.

In one embodiment of the present invention, in order to enable the power supply module to operate in the optimal working range, on the one hand, it can avoid the waste of electricity, and on the other hand, it can ensure the stability of the power supply of the power supply module. The above method further includes: The power supply module is assigned a corresponding digital identifier; when the target power supply module is supplying power to an external load, the output current is monitored in real time; when the output current is greater than the preset first current threshold, it is judged whether there is a power supply in the standby state module, if yes, then send a startup instruction to the power supply module with the smallest digital identifier in the standby state; when the power supply module with the smallest digital identifier in the standby state receives the startup instruction through the power management bus, it is determined to receive the The number of start commands is to determine whether the number of start commands is consistent with the number of power supply modules in the power supply state, and if yes, start to supply power to the load of the peripheral device. For example: supply power to the load through power supply module A1, power supply module A2, power supply module A3, power supply module A4 and power supply module A5, when power supply module A1, power supply module A2 and power supply module In the standby state, when the power supply module A1, the power supply module A2, and the power supply module A3 all detect that the first current threshold is exceeded, and it is judged that there are power supply modules A4 and A5 in the standby state, a start command is sent to the one with the smallest digital identifier in the standby state. The power supply module sends a startup command to the power supply module A4 in the standby state.

In an embodiment of the present invention, in order to further ensure that the power supply module operates within the optimal range, the above method further includes: when the target power supply module supplies power to an external load, when it is detected that the output current is less than the preset first When the current threshold is 2, send a stop command to the power supply module with the largest digital identifier in the power supply state. For example: supply power to the load through power supply module A1, power supply module A2, power supply module A3, power supply module A4 and power supply module A5, when power supply module A1, power supply module A2 and power supply module In the standby state, when the power supply module A1, the power supply module A2 and the power supply module A3 all detect that the output current is lower than the second current threshold, a stop command is sent to the power supply module with the largest digital identifier in the power supply state, that is, a stop command is sent to the power supply module in the power supply state. The power supply module A4 in the power supply state.

The following takes the five power supply modules A1, A2, A3, A4 and A5 in the power supply cabinet shown in Figure 5 as an example to further illustrate the power supply method. As shown in Figure 6, the power supply method may include the following steps:

Assigning a corresponding digital identifier to each of the power supply modules;

Step 601: Connect each power supply module through a power management bus;

As shown in FIG. 5 , the power supply modules A1 , A2 , A3 , A4 and A5 communicate with each other through a power management bus.

Step 602: each power supply module monitors its own running state;

As shown in FIG. 5 , the power supply modules A1 , A2 , A3 , A4 , and A5 each monitor their own operating states, and the operating states include: a standby state or a power supply state.

Step 603: When it is detected that the self-running state changes from the standby state to the power supply state, the timer is triggered to start timing, and step 604 and step 615 are executed respectively;

As shown in FIG. 5 , when the power supply module A1 changes from the standby state to the power supply state, the timer in the power supply module A1 starts timing to record the power supply duration of the power supply module A1.

This step is mainly to prepare for the implementation of power supply module rotation.

Step 604: When the self-running state is the power supply state, monitor the output current in real time;

The main purpose of monitoring the output current in this step is to ensure that the power supply module is in an optimal power supply state. If the output current is too high, the power supply will be insufficient, and if the output current is too small, the power will be wasted. Generally speaking, when the power supply rate of the power supply module is in the range of 40% to 65%, the power supply efficiency is better. When the power supply rate is 65%, the output current is generally 130A; when the power supply rate is 40%, the output current is 80A.

Step 605: Determine whether the output current is greater than the preset first current threshold, if yes, execute step 606; otherwise, execute step 607;

The first current threshold in this step is 130A, for example, the supply currents of the power supply module A1 and the power supply module A2 in FIG. 5 are both greater than 130A.

Step 606: Obtain the running status of other connected power supply modules through the power management bus; according to the running status, determine whether there is a power supply module in a standby state, if yes, go to step 608; otherwise, go to step 612;

As shown in Figure 5, the power supply module A1 obtains the operation conditions of other power supply modules, that is, obtains the operation conditions of the power supply modules A2, A3, A4, and A5; the power supply module A2 obtains the operation conditions of the power supply modules A1, A3, A4, and A5, and so on. For example: the power supply module A1 and the power supply module A2 are in the power supply state, and it is determined in this step that A3, A4 and A5 are in the standby state.

Step 607: Determine whether the output current is less than the preset second current threshold, if yes, execute step 613; otherwise, execute step 612;

The second current threshold mentioned in this step is 80A. For example, if the power supply module A1 and the power supply module A2 are in the power supply state, if it is judged in this step that the output current of A1 and A2 is less than 80A, it means that the load power consumption is small, and A1 And A2's power supply far exceeds the load's power consumption.

Step 608: Send a startup command to the power supply module with the smallest digital ID in the standby state;

For example, if it is determined in the above step 606 that A3, A4 and A5 are in the standby state, then in this step a start instruction is sent to A3.

Step 609: When the power supply module with the smallest digital identifier in the standby state receives the startup instruction through the power management bus, determine the number of the startup instructions received;

Step 610: Judging whether the number of start-up instructions is consistent with the number of power supply modules in the power supply state, if yes, perform step 611; otherwise, perform step 612;

The process of step 609 and step 610 is mainly to ensure the accuracy of the startup, for example: A1 and A2 are in the power supply state, A3, A4 and A5 are in the standby state, at this time, A3 only receives the startup command sent by A1, but not When it comes to the start command sent by A2, the number of start commands is inconsistent with the number of power supply modules in the power supply state, indicating that A2 can share the load for A1 without starting A3.

Step 611: Start the power supply module with the smallest digital ID in the standby state, supply power to the load of the peripheral device, and end the current process;

Step 612: Maintain the current power supply status and end the current process;

Step 613: Send a stop command to the power supply module with the largest digital identifier in the power supply state;

Step 614: When the power supply module with the largest digital identifier in the power supply state receives the stop command, stop the power supply and end the current process;

Step 615: When the timing time reaches the preset shift threshold, obtain the operation status of other connected power supply modules through the power management bus;

This step is mainly to avoid that some power supply modules are always in the power supply state, while the other part of the power supply modules are always in the standby state. Ensure the balance of the use of each power supply module by taking turns.

Step 616: According to the operation situation, judge whether there are other power supply modules in standby state, if yes, execute step 617; otherwise, execute step 612;

Step 617: sending a startup command to other power supply modules in standby state;

Step 618: When the power supply module in the standby state is started, it stops supplying power to the external load, and when it is detected that the operating state changes from the power supply state to the standby state, the timer is triggered to stop counting, and to zero.

For example: as shown in Figure 5, the current power supply time of A1 reaches the shift threshold, such as 15 days, then check whether there are power supply modules in the standby state in A2, A3, A4, and A5. If A3, A4, and A5 are detected to be in standby state, send a start command to A3, after A3 starts to supply power, A1 stops supplying power, at this time, the timer of A3 starts timing the power supply for A3, while the timer of A1 stops timing for A1, and the timer of A1 returns to the zero.

According to the above scheme, each embodiment of the present invention has at least the following beneficial effects:

1. Since each of the power supply modules is connected through the power management bus, each power supply module can directly communicate with each other, and each of the power supply modules is used to monitor its own power supply when supplying power to an external load Duration, when the power supply duration reaches the preset shift threshold, the operation status of other connected power supply modules is obtained through the power management bus, and according to the operation status, it is judged whether there is a power supply module in a standby state, If yes, then send a startup command to the power supply module in the standby state. When the power supply module in the standby state starts, it stops supplying power to the external load by itself. When the shift threshold is reached, the power supply modules in the standby state will be started, and the power supply modules whose power supply time reaches the shift threshold will stop supplying power, ensuring the balance of the use of each power supply module.

2. By assigning a corresponding digital identifier to each of the power supply modules; when the target power supply module supplies power to an external load, monitor the output current in real time; when the output current is greater than the preset first current threshold, then Judging whether there is a power supply module in the standby state, and if so, sending a startup command to the power supply module with the smallest digital identifier in the standby state; the power supply module with the smallest digital identifier in the standby state receives the startup instruction through the power management bus. When ordering, determine the number of the startup instructions received, judge whether the number of the startup instructions is consistent with the number of power supply modules in the power supply state, if yes, start to supply power for the load of the peripheral , to ensure that the power supply module supplies power within the optimal power supply interval.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or sequence. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by program instructions related hardware, and the aforementioned programs can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are only used to illustrate the technical solution of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (10)

1. A power supply cabinet, characterized in that, comprising: at least two power supply modules and a power management bus, wherein, Each of the power supply modules is connected through the power management bus; Each of the power supply modules is configured to monitor its own power supply duration when supplying power to an external load, and obtain other connected power supplies through the power management bus when the power supply duration reaches a preset shift threshold According to the operation status of the module, it is judged whether there is a power supply module in the standby state according to the operation status, and if so, a start command is sent to the power supply module in the standby state, and when the power supply module in the standby state is started, Then it stops supplying power to the external load by itself. 2. The power supply cabinet according to claim 1, wherein each of the power supply modules includes: a monitoring subunit and a timer, wherein, The monitoring subunit is used to monitor the running state, and trigger and start the timer when it is detected that the running state changes from the standby state to the power supply state; when it is detected that the running state changes from the power supply state to the standby state , triggering to stop the timer; The timer is used to start timing when receiving the trigger start of the monitoring subunit, and the timing duration is the power supply duration; when receiving the trigger stop of the monitoring subunit, stop timing and return to zero . 3. The power supply cabinet according to claim 1, wherein each of the power supply modules has a corresponding digital identification, which is further used for: When supplying power to an external load, monitor the output current in real time, and when the output current is greater than the preset first current threshold, judge whether there is a power supply module in the standby state according to the operating conditions, and if so, send The start command gives the power supply module with the smallest digital identification in the standby state. 4. The power supply cabinet according to claim 3, wherein each of the power supply modules is further used for: When in the standby state, when receiving the startup instructions through the power management bus, determine the number of the startup instructions received, and judge whether the number of the startup instructions is the same as the number of the startup instructions in the power supply state according to the operation situation The number of power supply modules is the same, and if yes, start up to supply power to the load of the peripheral device. 5. The power supply cabinet according to claim 3 or 4, characterized in that, Each of the power supply modules is further configured to: when supplying power to an external load, when it is detected that the output current is less than the preset second current threshold, then send a stop instruction to the digitally identified maximum power supply in the power supply state module. 6. A power supply system, characterized in that it comprises: at least one power supply cabinet according to any one of claims 1 to 5 and at least one load, wherein, The at least one power supply cabinet is configured to provide redundant power supply for the at least one load. 7. A power supply method, characterized in that, each power supply module is connected through a power management bus, and also includes: When a target power supply module supplies power to an external load, monitor its own power supply duration; When the duration of the power supply reaches a preset shift threshold, the operating conditions of other connected power supply modules are obtained through the power management bus; According to the operation situation, it is judged whether there are other power supply modules in the standby state, and if so, a start command is sent to the other power supply modules in the standby state, and when the power supply module in the standby state is started, it stops itself supply power to the external load. 8. The method of claim 7, wherein, The monitoring of its own power supply duration includes: Monitoring the running state, when it is detected that the running state has changed from the standby state to the power supply state, the timer is triggered to start counting, and the timing duration is the power supply duration; After the self stops supplying power to the external load, further comprising: When it is detected that the operating state changes from the power supply state to the standby state, the timer is triggered to stop counting and reset to zero. 9. The method of claim 7, further comprising: Assigning a corresponding digital identifier to each of the power supply modules; When the target power supply module supplies power to an external load, monitor the output current in real time; When the output current is greater than the preset first current threshold, it is judged whether there is a power supply module in the standby state, and if so, a start command is sent to the power supply module in the standby state with the smallest digital identifier; When the power supply module with the smallest digital identifier in the standby state receives the startup instruction through the power management bus, it determines the number of the startup instructions received, and judges whether the number of the startup instructions is the same as that of the power supply module in the power supply state. The number of the modules is the same, and if so, start up to supply power to the load of the peripheral device. 10. The method of claim 9, further comprising: When the target power supply module is supplying power to an external load, when it is detected that the output current is less than the preset second current threshold, a stop command is sent to the power supply module in the power supply state with the largest digital identifier.