WO2021175215A1

WO2021175215A1 - Power supply method and system, power supply device, and storage medium

Info

Publication number: WO2021175215A1
Application number: PCT/CN2021/078702
Authority: WO
Inventors: 刘造; 姚益民; 高俊恩
Original assignee: 华为技术有限公司
Priority date: 2020-03-05
Filing date: 2021-03-02
Publication date: 2021-09-10
Also published as: CN111446718A; CN111446718B; CN116014706A

Abstract

Disclosed are a power supply method and system, a power supply device, and a storage medium, relating to the technical field of electronics. The method is applied to a system comprising a power supply module, an energy storage module, and a load. An output end of the power supply module is connected to a charging end of the energy storage module; the output end of the power supply module and a discharging end of the energy storage module are both connected to the load; the power supply module is connected to the mains supply. The method comprises: determining an output power of the power supply module in a process that the power supply module supplies power to the load; and if the power output by the power supply module is increased from below a limited power of the power supply module to be greater than the limited power, controlling an output voltage of the power supply module to be lower than a setting voltage of the energy storage module, so as to supply power to the load by the power supply module and the energy storage module, thereby ensuring the normal operation of the load. Therefore, when the power consumed by the load is too large due to a service peak, reliable power supply can be achieved by the combination of the power supply module and the energy storage module, and therefore, it can be guaranteed that the service performance is not affected even at the service peak.

Description

Power supply method, system, power supply equipment and storage medium

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 202010146819.4, and the invention title is "Power Supply Method, System, Power Supply Equipment, and Storage Medium" on March 5, 2020. The entire content is incorporated by reference. In this application.

Technical field

This application relates to the field of electronic technology, and in particular to a power supply method, system, power supply device and storage medium.

Background technique

Power supply reliability plays a vital role in maintaining the normal operation of electronic equipment. For the cabinet in the computer room, it generally includes the power supply and the load. The power supply is connected to the mains and can supply power to the load. The load includes servers, switches, etc., which can provide corresponding services.

In order to ensure the utilization rate of the power supply, the rated power of the power supply is generally configured according to the power consumed by the load when providing typical services. In this case, when the service peak occurs, it is easy to cause insufficient power supply due to excessive power consumption by the load, resulting in power failure.

To this end, a power capping mechanism is added. Specifically, when the power consumed by the load is greater than the rated power of the power supply, a power capping operation is performed to limit the power consumed by the load below the rated power of the power supply to ensure that no power is lost. However, since the power is limited at the peak of the service, it will affect the performance of the service.

Summary of the invention

This application provides a power supply method, system, power supply device, storage medium, and program product, which can ensure that business performance is not affected when the business peaks. The technical solution is as follows:

In the first aspect, a power supply method is provided, which is applied to a system including a power supply module, an energy storage module, and a load. The output end of the power supply module is connected to the charging end of the energy storage module, and the output end of the power supply module is discharged from the energy storage module. Both ends are connected to the load, and the power module is connected to the mains.

In this method, when the power module supplies power to the load, the power output by the power module is determined. If the output power of the power module rises from below the limited power of the power module to greater than the limited power, the output voltage of the control power module is lower than the set voltage of the energy storage module, and the power module and the energy storage module supply power to the load.

It should be noted that the mains power is industrial frequency alternating current, which is the power resource extracted from the power pipe network, and the mains power is generally provided by the power company.

In addition, the limited power of the power supply module can be set in advance, and the limited power of the power supply module can be equal to the rated power of the power supply module, or slightly less than the rated power of the power supply module. For example, the limited power of the power supply module can be the rated power of the power supply module. 0.9 times and so on. The rated power of the power module refers to the effective power that the power module can continuously output, that is, the maximum power that the power module can continue to work normally.

Furthermore, when the output voltage of the power module is lower than the set voltage of the energy storage module, the energy storage module is in a discharging state. At this time, the energy storage module can automatically share the power consumed by the load that exceeds the power supply capacity of the power module. That is to say, by controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module in the embodiment of the present application, it can be ensured that the part of the power consumed by the load that exceeds the power supply capacity of the power supply module is automatically provided by the energy storage module.

In this application, when the power consumed by the load is excessive due to business peaks, the power supply module and the energy storage module are combined to achieve reliable power supply, so as to ensure that business performance is not affected even when the business peaks. In addition, in the case of power supply from the power supply module, the synchronous power supply of the energy storage module is also supported, so that the utilization rate of the energy storage module can be improved.

Optionally, the above steps may be executed by a power module, and specifically may be executed by a power management system in the power module. Of course, the above steps may also be executed by other separately set modules, for example, a separate management module may be set in the system for execution. In actual applications, a suitable executive body can be selected according to requirements, which is not limited in this application.

In a possible implementation manner, a linked power supply function can be set. The linked power supply function refers to a function that can combine the power supply module and the energy storage module to supply power to the load. In this case, you can control the output voltage of the power module to be lower than the set voltage of the energy storage module when the linkage power supply function has been activated and the output power of the power module rises from below the limited power of the power module to greater than the limited power. In this way, it can be guaranteed that when there is a demand for linked power supply, the power supply module and the energy storage module are used for joint power supply.

It should be noted that the set voltage of the energy storage module is the voltage at which the energy storage module can maintain a constant and stable output. If the voltage of the charging terminal of the energy storage module is greater than the set voltage of the energy storage module, the energy storage module is in a charging state; if the voltage of the charging terminal of the energy storage module is less than the set voltage of the energy storage module, the energy storage module is in a discharging state.

Optionally, in this application, the power supply module may determine that the linked power supply function has been turned on when receiving the first indication information sent by the management module. After the power module determines that the linkage power supply function is enabled, the power module can control the output voltage of the power module to be lower than the set voltage of the energy storage module when the output power of the power module rises from below the limited power of the power module to greater than the limited power. At this time, one transmission end of the management module can be connected to the transmission end of the power supply module, and the other transmission end of the management module can be connected to the transmission end of the energy storage module.

In one case, the first indication information may be sent by the management module when it predicts that the power consumed by the load in the next time period is greater than the limited power of the power supply module.

In this application, if the management module predicts that the power consumed by the load in the next time period is greater than the limited power of the power supply module, it indicates that the power consumed by the load is likely to exceed the power supply capacity of the power supply module, so the linkage power supply can be turned on at this time Function so that the power module and energy storage module can be combined to supply power to the load in the future.

Optionally, the operation of the management module to predict the power consumed by the load in the next time period may be: predict the power consumed by the load in the next time period through the power consumption relationship of the load according to the time range of the next time period; or, according to The time range of the next time period is to predict the business that the load will run in the next time period through the business operation relationship of the load, and predict the power consumed by the load in the next time period based on the predicted business.

It should be noted that the power consumption relationship of the load is obtained by analyzing the power consumed by the load in various time periods in the past. That is, it is possible to establish a correlation database between the time period and the power consumed by the load, and then use the learning algorithm to establish the power consumption relationship of the load based on the correlation database, and the power consumption relationship can predict the power consumed by the load in different time periods. The power consumption relationship may be a functional relationship or a neural network model.

In addition, the business operation relationship of the load is obtained by analyzing the business that the load has run in various time periods in the past. That is, it is possible to establish an associated database between the time period and the load running business, and then based on this associated database, through the learning algorithm to establish the load business running relationship, the business running relationship can predict the load running business in different time periods. The business operation relationship can be a functional relationship or a neural network model.

In another case, the first indication information may be sent by the management module when the power output by the power module is greater than the limited power of the power module, and the linkage power supply function is determined to be enabled according to the remaining capacity of the energy storage module and the second power, and the second Power is the difference between the power output by the power module and the limited power of the power module.

Optionally, the management module determines whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power: if the remaining capacity of the energy storage module divided by the preset duration, the value obtained is greater than or equal to the second Power, the linkage power supply function is turned on.

In this application, when the linked power supply function has not been activated, the power output by the power module is the power consumed by the load. If the power output by the power module is greater than the limited power of the power module, it indicates that the power consumed by the load has exceeded the power supply capacity of the power module. Therefore, at this time, the power output by the power module can be subtracted from the limited power of the power module to obtain the second power. The second power is the part of the power consumed by the load that exceeds the power supply capacity of the power supply module.

After dividing the remaining capacity of the energy storage module by the preset duration, the maximum output power of the energy storage module can be obtained. The maximum output power of the energy storage module is the maximum power that the energy storage module can output when the power supply for at least a preset duration is required. Therefore, if the maximum output power of the energy storage module is greater than or equal to the second power, it means that the energy storage module is sufficient to share the part of the power consumed by the load that exceeds the power supply capacity of the power supply module, and the linkage power supply function can be activated at this time.

Optionally, in this application, the management module itself can enable the linkage power supply function. After the management module turns on the linkage power supply function, when the output power of the power module rises from below the limited power of the power module to greater than the limited power, the output voltage of the control power module is lower than the set voltage of the energy storage module.

It should be noted that there can be multiple ways for the management module to enable the linkage power supply function. For example, the management module can predict the power consumed by the load in the next time period; when the predicted power is greater than the limited power of the power supply module, the linkage power supply function is turned on. Alternatively, the management module may determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power when the power output by the power supply module is greater than the limited power of the power supply module.

In a possible implementation, the power supply module includes n power management systems and n power supplies. The n power management systems correspond to the n power supplies one-to-one, and each of the n power management systems is used for management. For the corresponding power supply, n is an integer greater than or equal to 2; if the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, the operation of controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module is OK For any one of the n power supplies, if the output power of this power supply rises from below the first power to greater than the first power, the output voltage of this power supply is controlled to be lower than the set voltage of the energy storage module, and the first power is The limited power of the power module is divided by n to get.

In this application, due to the load balancing characteristics of the power supply module, the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the power output by this power supply is the first If the power is lower than the first power, the output power of the power module should be increased from the power module's limited power to more than the limited power, so the output voltage of this power supply can be controlled to be lower than the setting of the energy storage module at this time. Voltage to make the energy storage module in a discharged state.

In a possible implementation, after controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module, if the output power of the power supply module drops from above the limited power to less than the limited power, the output voltage of the power supply module can also be controlled Higher than the set voltage of the energy storage module, the power module supplies power to the load and charges the energy storage module.

In this application, if the output power of the power module drops from above the limited power of the power module to less than the limited power, it indicates that the power consumed by the load is likely to have changed from beyond the power supply capacity of the power module to the power supply capacity of the power module. Within, the power module can supply power to the load and charge the energy storage module. In this way, not only can the normal power supply to the load be guaranteed, but also the capacity of the energy storage module can be increased, which facilitates the subsequent use of the energy storage module to supply power to the load.

In a possible implementation manner, the power supply module can control the output voltage of the power supply module to be lower than the set voltage of the energy storage module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power. In this case, the power module may also send third indication information to the management module, and the management module determines the power cap value according to the remaining capacity of the energy storage module and the limited power of the power module, and limits the power consumed by the load according to the power cap value.

In another possible implementation manner, the management module can control the output voltage of the power supply module to be lower than the set voltage of the energy storage module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power. In this case, the management module can also determine the power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module, and limit the power consumed by the load according to the power cap value.

In this application, the management module can combine the power supply capabilities of the energy storage module and the power supply module to set the power cap value during the process when the power supply module and the energy storage module supply power to the load. With the ability to perform power capping mechanism, this application can improve the power supply capability of the system, so that the system can run over frequency, and ensure that business performance is not affected.

Optionally, the management module determines the power cap value based on the remaining capacity of the energy storage module and the limited power of the power supply module. The operation of determining the power cap value may be: dividing the remaining capacity of the energy storage module by the preset period of time and the value obtained by the power module is limited. Add the power to get the power cap value.

It should be noted that the maximum output power of the energy storage module can be obtained by dividing the remaining capacity of the energy storage module by the preset duration. The maximum output power of the energy storage module is the maximum power that the energy storage module can output when the power supply for at least a preset duration is required. Therefore, by adding the maximum output power of the energy storage module and the limited power of the power supply module, the maximum power that can be output by the combination of the energy storage module and the power supply module can be obtained, which is used as the power cap value.

In a second aspect, a power supply system is provided. The system includes a power supply module and an energy storage module. The output end of the power supply module is connected to the charging end of the energy storage module. The discharge ends of the energy storage module are all connected to the load, and the power supply module is connected to the mains;

The power supply module is configured to determine the power output by the power supply module when the power supply module supplies power to the load;

The power supply module is further configured to control the output voltage of the power supply module to be lower than that of the energy storage module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power. The voltage is set so that the power supply module and the energy storage module supply power to the load.

Optionally, the power supply module is also used for:

When the linkage power supply function has been activated and the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power, control the output voltage of the power supply module to be lower than the setting of the energy storage module Voltage.

Optionally, the system further includes a management module, one transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the energy storage module;

The management module is used to predict the power consumed by the load in the next time period, and when the predicted power is greater than the limited power of the power supply module, turn on the linkage power supply function; or When the output power of the module is greater than the limited power of the power supply module, determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power, where the second power is the power output by the power supply module The difference with the limited power of the power supply module;

The management module is further configured to send first indication information to the power supply module when the linkage power supply function has been turned on;

The power supply module is further configured to determine that the linkage power supply function is turned on when the first instruction information sent by the management module is received.

Optionally, the power supply module includes n power management systems and n power supplies, and the n power management systems have a one-to-one correspondence with the n power supplies, and each power management system of the n power management systems For managing the corresponding power supply, the n is an integer greater than or equal to 2;

Each of the n power management systems is configured to control the output voltage of the managed power supply to be lower than when the power output by the managed power supply rises from below the first power to greater than the first power For the set voltage of the energy storage module, the first power is obtained by dividing the limited power of the power supply module by n.

Optionally, the power supply module is also used for:

When the output power of the power supply module drops from above the limited power to less than the limited power, the output voltage of the power supply module is controlled to be higher than the setting voltage of the energy storage module, so that the power supply module is The load supplies power and charges the energy storage module.

The power supply module is configured to send third indication information to the management module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power;

The management module is configured to determine a power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module when receiving the third indication information sent by the power supply module, and to cap the power according to the power The value limits the power consumed by the load.

In a third aspect, a power supply device is provided. The power supply device includes a power management system and a power supply, the power management system is used to manage power; the power management system includes an interface card, a processor, and a memory; the processor Send data or receive data through the interface card; the memory is used to store a program that supports the power management system to execute the power supply method provided in the first aspect above, and to store the power supply method used to implement the power supply method in the first aspect above The data involved. The processor is configured to execute a program stored in the memory.

In a fourth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, and the instructions are loaded by a processor and execute the power supply method described in the first aspect.

In a fifth aspect, a computer program product containing instructions is provided, and the instructions are loaded by a processor and execute the power supply method described in the first aspect.

The technical effects obtained by the second, third, fourth, and fifth aspects described above are similar to those obtained by the corresponding technical means in the first aspect, and will not be repeated here.

Description of the drawings

Fig. 1 is a schematic diagram of a system provided by an embodiment of the present application;

Figure 2 is a schematic diagram of a cabinet-level system provided by an embodiment of the present application;

FIG. 3 is a flowchart of a power supply method provided by an embodiment of the present application;

Figure 4 is a schematic diagram of another system provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of another system provided by an embodiment of the present application;

FIG. 6 is a power-time curve diagram provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a power supply system provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of another power supply system provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a power supply device provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a management device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions, and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

It should be understood that the "plurality" mentioned in this application refers to two or more. In the description of this application, unless otherwise specified, "/" means or, for example, A/B can mean A or B; "and/or" in this document is only an association relationship describing associated objects, It means that there can be three kinds of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. In addition, in order to facilitate a clear description of the technical solution of the present application, words such as "first" and "second" are used to distinguish the same items or similar items that have basically the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and order of execution, and words such as "first" and "second" do not limit the difference.

Before explaining the embodiments of the present application in detail, the system architecture of the embodiments of the present application will be described first.

Fig. 1 is a schematic diagram of a system involved in an embodiment of the present application. Referring to FIG. 1, the system includes: a power supply module 101, an energy storage module 102, a management module 103 and a load 104.

The power supply module 101 is connected to the mains power, which is a power frequency alternating current, which is a power resource extracted from the power pipe network. The utility power may be electric energy provided by a power company. The output terminal of the power module 101 is connected to the charging terminal of the energy storage module 102, and the output terminal of the power module 101 and the discharging terminal of the energy storage module 102 are both connected to the load 104. One transmission end of the management module 103 is connected to the transmission end of the power supply module 101, and the other transmission end of the management module 103 is connected to the transmission end of the energy storage module 102.

For example, the output end of the power supply module 101 and the discharge end of the energy storage module 102 may both be connected to the load 104 through a busbar. The bus bar is a conductive material and is a copper bar or aluminum bar connected between the main switch and each branch switch. The master switch is a switch connecting the output terminal of the power supply module 101 and the charging terminal of the energy storage module 102 to the busbar. The power supply module 101 and the energy storage module 102 can control the power supply to the busbar through the master switch. The shunt switch refers to a switch connected between the busbar and the load 104, and the power supply from the busbar to the load 104 can be controlled by the shunt switch.

The power supply module 101 can convert the AC power of the city power into DC low-voltage power and provide it to the load 104. For example, it can convert 220V (Volt) AC power to 48V DC power and provide it to the load 104. The power module 101 can also charge the energy storage module 102. The energy storage module 102 can also supply power to the load 104.

The management module 103 can monitor the operation of the power supply module 101 and the energy storage module 102, specifically it can monitor the power output by the power supply module 101, the power output by the energy storage module 102, the remaining capacity of the energy storage module 102, etc., and determine whether to turn on accordingly. The linked power supply function, the linked power supply function refers to a function capable of combining the power supply module 101 and the energy storage module 102 to supply power to the load 104.

For example, the system can be a cabinet-level system as shown in FIG. 2. The power supply module 101, the energy storage module 102, the management module 103, and the load 104 are all located in the cabinet. The cabinet may also include a power supply frame, and the power supply frame includes a power supply slot and a single board slot.

Wherein, the power module 101 includes three power supplies, which are located in a power supply slot of the power supply frame. The energy storage module 102 may be a battery backup unit (BBU), including three batteries. The management module 103 may be a single board, and is located in a single board slot in the power frame. For example, the management module 103 may be a remote management controller (RMC) board. The management module 103 and the power supply module 101 may communicate through a controller area network (CAN) interface, and the management module 103 and the energy storage module 102 may also communicate through a CAN interface. The load 104 may include servers and switches.

Of course, in addition to the above-mentioned cabinet-level system, the system can also be any system having a power supply module 101 and an energy storage module 102, which is not limited in the embodiment of the present application.

Fig. 3 is a flowchart of a power supply method provided by an embodiment of the present application. This method can be applied to the system shown in Figure 1. Referring to Figure 3, the method may include the following steps:

Step 301: The power supply module judges whether the linkage power supply function is turned on.

It should be noted that the linkage power supply function refers to the function that can combine the power supply module and the energy storage module to supply power to the load. That is, when the linkage power supply function is turned on, the power supply module and the energy storage module can supply power to the load at the same time; when the linkage power supply function is not turned on, only the power module can supply power to the load. In addition, the power supply module can also charge the energy storage module when the linkage power supply function is not turned on.

In addition, the power module can be connected to the mains, and the power module can convert the AC of the mains into DC low-voltage, for example, it can convert 220V AC into 48V DC. The energy storage module is a device used to store electrical energy. The energy storage module can supply power to the load when the power module is powered off. For example, the energy storage module can be a battery, a super capacitor, etc. The load is a device that consumes electric energy, for example, the load may be a switch, a server, etc., which is not limited in the embodiment of the present application.

Among them, the linkage power supply function can be activated by the management module in various ways. The management module may send the first indication information to the power supply module when the linked power supply function is turned on to indicate that the linked power supply function has been turned on. When the management module turns off the linked power supply function, it may send second indication information to the power supply module to indicate that the linked power supply function has been turned off. That is, the power supply module may determine that the linked power supply function is turned on when receiving the first indication information, and may determine that the linked power supply function is not turned on when receiving the second indication information.

Specifically, the linked power supply function can be manually turned on by a technician, or it can be turned on automatically by the management module. For example, the management module can enable the linkage power supply function in the following three possible ways.

In the first possible way, the management module turns on the linked power supply function when receiving the turn-on instruction.

In this way, after the management module turns on the linkage power supply function, it can turn off the linkage power supply function when it receives a shutdown instruction.

It should be noted that the on command is used to turn on the linked power supply function, and the off command is used to turn off the linked power supply function. Both the opening instruction and the closing instruction can be input into the management module by a technician. For example, the technician can trigger the opening instruction or the closing instruction on the management module through operations such as click operations, voice operations, gesture operations, and somatosensory operations.

For example, the management module may display a control interface, and the control interface may include control buttons. The technician can trigger the opening instruction by clicking the control button. After receiving the opening instruction, the management module can turn on the linkage power supply function. Moreover, after the management module turns on the linkage power supply function, the technician can also trigger a shutdown instruction by clicking the control button, and the management module can turn off the linkage power supply function after receiving the shutdown instruction.

In the second possible way, the management module predicts the power consumed by the load in the next time period; if the predicted power is greater than the limited power of the power supply module, the linkage power supply function is turned on.

In this way, if the predicted power is less than or equal to the limited power of the power supply module, the management module does not enable the linkage power supply function. In addition, the management module can obtain the power consumed by the load in the current time period after the linkage power supply function is turned on. If the power consumed by the load in the current time period is less than or equal to the limited power of the power supply module, and the management module predicts that the load will be the next When the power consumed in the time period is less than or equal to the limited power of the power supply module, the management module closes the linkage power supply function.

It should be noted that the duration of the time period can be set in advance. For example, the duration of the time period can be set to 10 minutes, that is, every 10 minutes is a time period.

In addition, the limited power of the power supply module can be set in advance, and the limited power of the power supply module can be the maximum power that the power supply module can output. The limited power of the power module can be equal to or slightly less than the rated power of the power module. For example, the limited power of the power module can be 0.9 times the rated power of the power module. The rated power of the power module refers to the effective power that the power module can continuously output, that is, the maximum power that the power module can continue to work normally.

Furthermore, if the management module predicts that the power consumed by the load in the next time period is greater than the limited power of the power module, it indicates that the power consumed by the load is likely to exceed the power supply capacity of the power module. Therefore, the management module can turn on the linkage power supply at this time. Function so that the power module and energy storage module can be combined to supply power to the load in the future.

If the management module predicts that the power consumed by the load in the next time period is less than or equal to the limited power of the power supply module, it indicates that the power consumed by the load will most likely not exceed the power supply capacity of the power supply module for a period of time in the future, so the management at this time The module does not need to enable the linkage power supply function, and the power module continues to supply power to the load.

If the management module turns on the linkage power supply function, the power consumed by the load in the current time period is less than or equal to the limited power of the power supply module, and the management module predicts that the power consumed by the load in the next time period is less than or equal to the limited power of the power supply module , It indicates that not only the power consumed by the load at the current time does not exceed the power supply capacity of the power supply module, but also the power consumed in the future will probably not exceed the power supply capacity of the power supply module. Therefore, the management module can turn off the linkage power supply at this time. Function, so that only the power module will supply power to the load.

Among them, before the linkage power supply function is turned on, the power consumed by the load in the current time period is the power output by the power module in the current time period. When the linkage power supply function is turned on, the power consumed by the load in the current time period is the sum of the power output by the power module in the current time period and the power output by the energy storage module in the current time period.

For example, as shown in Figure 4, the management module is used to turn on or turn off the linkage power supply function. The management module may be a single board, which may include a processor, and the processor may be a dedicated hardware or chip, such as a microprocessor (including a central processing unit (CPU), etc.), application-specific integrated circuits (application integrated circuits, etc.). -specific integrated circuit, ASIC), or can be one or more integrated circuits used to turn on or turn off the linked power supply function. The power supply module may include n power management systems and n power supplies. The n power management systems correspond to the n power supplies one-to-one, and n is an integer greater than or equal to 2. Each power management system is used to manage a corresponding power supply, and each power management system can detect the output power of the power supply it manages. For example, the power management system can be a digital signal processor (DSP) or the like. The energy storage module can include multiple energy storage management systems and energy storage components managed by each energy storage management system. Each energy storage management system can detect the output power of the energy storage components it manages, such as when the energy storage When the component is a battery, the energy storage management system may be a battery management system (BMS).

One transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the energy storage module. Each power management system in the power supply module may send the output power of the power supply detected in the current time period to the management module. Each energy storage management system in the energy storage module can send the output power of the energy storage element detected in the current time period to the management module.

When the linkage power supply function is not enabled, the processor in the management module can accumulate all the output power sent by the power module to obtain the power consumed by the load in the current time period. When the linked power supply function is turned on, the processor in the management module can accumulate all the output power sent by the power supply module and the energy storage module to obtain the power consumed by the load in the current time period.

The operation of the management module to predict the power consumed by the load in the next time period may be: the management module predicts the power consumed by the load in the next time period through the power consumption relationship of the load according to the time range of the next time period; or, manage According to the time range of the next time period, the module predicts the business that the load will run in the next time period through the business operation relationship of the load, and predicts the power consumed by the load in the next time period based on the predicted business.

It should be noted that the power consumption relationship of the load is obtained by analyzing the power consumed by the load in various time periods in the past. That is, the management module can establish a correlation database between the time period and the power consumed by the load, and then, based on this correlation database, establish the power consumption relationship of the load through the learning algorithm. The power consumption relationship can predict the load consumed in different time periods. power.

The power consumption relationship may be a functional relationship, or a neural network model, etc., which is not limited in the embodiment of the present application. For example, when the power consumption relationship is a functional relationship, the independent variable in the functional relationship can be a time range, and the dependent variable in the functional relationship can be power consumption. In this way, a certain time range is substituted into the functional relationship to obtain The function value of is the power consumed by the load in this time range. For another example, when the power consumption relationship is a neural network model, the input of the neural network model can be the time range, and the output of the neural network model can be the power consumption. In this way, after a certain time range is input to the neural network model, The output of the neural network model is the power consumed by the load in this time range.

Among them, when the management module predicts the power consumed by the load in the next time period through the power consumption relationship of the load according to the time range of the next time period, the management module can input the time range of the next time period into the power consumption relationship, The power output by the power consumption relationship is used as the predicted power consumed by the load in the next time period.

It should be noted that the business operation relationship of the load is obtained by analyzing the business that the load has run in various time periods in the past. That is, the management module can establish an associated database between the time period and the load running business, and then based on this associated database, through the learning algorithm to establish the load business operation relationship, the business operation relationship can predict the load running in different time periods business.

The business operation relationship may be a functional relationship, or a neural network model, etc., which is not limited in the embodiment of the present application. For example, when the business operation relationship is a functional relationship, the independent variable in the functional relationship can be a time range, and the dependent variable in the functional relationship can be a business identifier. In this way, a certain time range is substituted into the functional relationship to obtain The function value of is the business identifier of the business that the load runs in this time range. For another example, when the business operation relationship is a neural network model, the input of the neural network model can be a time range, and the output of the neural network model can be a business identifier. In this way, after a certain time range is input to the neural network model, The output of the neural network model is the service identification of the service that the load runs in this time range. Among them, the business identifier is used to identify the business, such as the business name, code, etc.

Among them, when the management module predicts the business that the load will run in the next time period based on the time range of the next time period through the business operation relationship of the load, the management module can input the time range of the next time period into the business operation relationship, The business identified by the business identifier output by the business operation relationship is used as the business that the predicted load will run in the next time period.

Among them, when the management module predicts the power consumed by the load in the next time period based on the predicted service, the management module can obtain the corresponding consumption from the corresponding relationship between the service ID and the power consumption according to the service ID of the predicted service. The power is the predicted power consumed by the load in the next time period.

It should be noted that the correspondence between the service ID and the power consumption can be set in advance, and the power consumption corresponding to each service ID is the power that the load usually consumes when running the service identified by the service ID. For example, if the service ID of the service predicted by the management module is service ID 1, the management module can obtain the corresponding power consumption from the corresponding relationship between service ID and power consumption as shown in Table 1 according to service ID 1. Power 1, using power 1 as the predicted power consumed by the load in the next time period.

Table 1

业务标识Business identity	消耗功率Power consumption
业务标识1Business ID 1	功率1Power 1
业务标识2Business Identity 2	功率2Power 2
业务标识3Business logo 3	功率3Power 3
……...	……...

It should be noted that the embodiment of the present application only describes the correspondence between the service identifier and the power consumption shown in Table 1 above as an example, and the above Table 1 does not limit the embodiment of the present application.

In the third possible way, the management module obtains the power output by the power supply module and the remaining capacity of the energy storage module; if the power output by the power supply module is greater than the limited power of the power supply module, according to the remaining capacity of the energy storage module and the second power, Determine whether to enable the linkage power supply function. The second power is the difference between the power output by the power module and the limited power of the power module.

It should be noted that the limited power of the power supply module can be set in advance, and the limited power of the power supply module can be equal to the rated power of the power supply module, or slightly less than the rated power of the power supply module. For example, the limited power of the power supply module can be that of the power supply module. 0.9 times the rated power, etc.

In addition, as shown in FIG. 4, each power management system in the power supply module can detect the output power of the power supply managed by it and send it to the management module. The processor in the management module can accumulate all the output power sent by the power module to obtain the power output by the power module.

Furthermore, the remaining capacity of the energy storage module refers to the maximum amount of electricity that the energy storage module can output if the energy storage module is currently to be used for power supply. The remaining capacity of the energy storage module can be obtained by detecting the working state and remaining capacity of the energy storage element included in the energy storage module. For example, as shown in Figure 4, each energy storage management system in the energy storage module can detect the working status and remaining capacity of the energy storage element it manages and send it to the management module. The processor in the management module can determine the normally working energy storage element according to the working state of the energy storage element sent by the energy storage module, and then accumulate the remaining capacity of all normally working energy storage elements to obtain the remaining capacity of the energy storage module.

It should be noted that the power output by the power module is the power consumed by the load when the linkage power supply function has not been turned on. If the output power of the power module is greater than the limited power of the power module, it indicates that the power consumed by the load has exceeded the power supply capacity of the power module. Therefore, at this time, the management module can subtract the power output by the power module from the limited power of the power module to obtain the second power. The second power is the part of the power consumed by the load that exceeds the power supply capacity of the power supply module. After that, the power supply module can determine whether the energy storage module is sufficient to provide the second power according to the remaining capacity of the energy storage module, so as to determine whether to enable the linkage power supply function accordingly.

The operation of the management module to determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power may be: if the remaining capacity of the energy storage module divided by the preset duration is greater than or equal to the second power, Then the management module turns on the linkage power supply function; if the value obtained by dividing the remaining capacity of the energy storage module by the preset duration is less than the second power, the management module does not turn on the linkage power supply function.

It should be noted that the preset duration can be set in advance. After dividing the remaining capacity of the energy storage module by the preset duration, the maximum output power of the energy storage module can be obtained. The maximum output power of the energy storage module is the maximum power that the energy storage module can output when the power supply for at least a preset duration is required. Therefore, if the maximum output power of the energy storage module is greater than or equal to the second power, it means that the energy storage module is sufficient to share the part of the power consumed by the load that exceeds the power supply capacity of the power supply module, and the linkage power supply function can be activated at this time. If the maximum output power of the energy storage module is lower than the second power, it means that the energy storage module is not enough to share the power consumed by the load that exceeds the power supply capacity of the power supply module, and the linkage power supply function may not be enabled at this time.

Wherein, when the power module includes a power management system and a power source managed by it, in step 301, the power management system may determine whether the linked power supply function is turned on.

If the linkage power supply function is not turned on, the power supply module can perform the following step 302 to supply power to the load. If the linkage power supply function is turned on, the power supply module may perform the following steps 303 to step 306 to supply power to the load.

Step 302: The power supply module controls its own output voltage to a preset voltage, so that the power supply module supplies power to the load and charges the energy storage module.

It should be noted that the preset voltage can be set in advance, and the preset voltage is the default output voltage of the power module. The preset voltage is higher than the set voltage of the energy storage module. The set voltage of the energy storage module is the voltage at which the energy storage module can maintain a constant and stable output. If the voltage of the charging terminal of the energy storage module is greater than the set voltage of the energy storage module, the energy storage module is in a charging state; if the voltage of the charging terminal of the energy storage module is less than the set voltage of the energy storage module, the energy storage module is in a discharging state.

When the output voltage of the power module is higher than the set voltage of the energy storage module, the energy storage module is in a charging state. At this time, the power module can not only supply power to the load, but also charge the energy storage module. In this way, not only can the normal power supply to the load be guaranteed, but also the capacity of the energy storage module can be increased, which facilitates the subsequent use of the energy storage module to supply power to the load.

Wherein, when the power module includes a power management system and a power supply managed by the power supply module, in step 302, the power management system may control the output voltage of the power supply managed by the power management system to a preset voltage.

It should be noted that the power supply module used in the embodiments of this application can select a power supply module whose rated power is close to the power consumed by the load when providing typical services. For example, the rated power can be selected as the power consumed by the load when providing typical services. The power supply module of the power. In this case, since the load is providing typical services most of the time, the power consumed by the load in most of the time is close to the rated power of the power module, which not only guarantees the normal operation of the business, but also compares it with the related technologies. The scheme of selecting a power module whose rated power is close to the power consumed by the load at the peak of the service can save a certain amount of power in the embodiment of the application, and the saved power can be used for power supply of other devices, thereby improving power utilization .

It is worth noting that in practical applications, the linkage power supply function can be set to supply power to the load through the following steps 303-306 when the linkage power supply function is turned on, and the existing linkage power supply function is used when the linkage power supply function is not turned on. Way (that is, step 302) to supply power to the load, so as to achieve compatibility with the existing power supply method.

Of course, the linkage power supply function may not be set, but the following steps 303 to 306 are always used to supply power to the load. In other words, it is not necessary to perform step 301 and step 302, and directly use the following steps 303-306 to supply power to the load. That is, during the business operation, the power module always chooses whether it is only the load according to the power consumption of the load. For power supply, it still combines itself and the energy storage module to supply power to the load.

Step 303: When the power module supplies power to the load, the power module determines the power output by the power module.

When the power module supplies power to the load, the power output by the power module is the power consumed by the load. In this way, it is convenient to determine whether the power supply module and the energy storage module need to be combined to supply power to the load according to the power consumed by the load.

Wherein, when the power supply module includes a power management system and a power supply managed by it, in step 303, the power management system may determine the output power of the power supply managed by the power supply management system.

It is worth noting that if the linkage power supply function is provided in the embodiment of the present application, the power supply module can always determine the power output by the power supply module and transmit it to the management module, so that the management module can determine whether the linkage power supply function needs to be turned on accordingly. When the power module supplies power to the load, that is, when the output voltage of the power module is higher than the set voltage of the energy storage module, if the linkage power supply function is turned on, the power module can detect whether the power output by the power module is generated by the power module The limited power is increased below the limited power to be greater than the limited power, so as to determine whether to adjust its output voltage to supply power jointly with the energy storage module. The specific process is as follows.

Step 304: If the power output by the power module is less than or equal to the limited power of the power module, the power module controls its own output voltage to a preset voltage, so that the power module supplies power to the load and charges the energy storage module.

It should be noted that the limited power of the power module is close to the rated power of the power module, and the rated power of the power module is the maximum output power of the power module. Since the load is providing typical services most of the time, and the power consumed by the load when providing typical services is relatively close to the rated power of the power module in the embodiment of this application, the power consumed by the load in most of the time is also close to The limited power of the power supply module can ensure the utilization rate of the power supply module.

In this case, since the power consumed by the load at the peak of the service is much greater than the power consumed by the load when providing typical services, the power consumed by the load at the peak of the service will be greater than the limited power of the power supply module. Since the load provides typical services most of the time, it will be at the peak of the service in a small part of the time, so the power consumed by the load in most of the time is less than the limited power of the power supply module, and the power consumed in a small part of the time will be greater than the limit of the power supply module power.

In addition, if the output power of the power module is less than or equal to the limited power of the power module, it indicates that the power consumed by the load does not exceed the power supply capacity of the power module, and the power module can control its own output voltage to the preset voltage to continue supplying power to the load , And charge the energy storage module.

For example, as shown in Figure 5, the energy storage module includes a charging circuit, a discharging circuit and an energy storage element. The setting voltage of the energy storage element is less than the preset voltage. For example, the setting voltage of the energy storage element may be 52V, and the preset voltage may be 54.5V. The default output voltage of the power module is the preset voltage. Since the preset voltage is greater than the set voltage of the energy storage element, the energy storage module is in a charging state. At this time, the power module charges the energy storage element through the charging circuit and supplies power to the load.

Wherein, when the power module includes n power management systems and the power source managed by each power management system, step 304 may be when any one of the n power management systems detects the output of the power source managed by it. When the power is less than or equal to the first power, the output voltage of the controlled power supply is maintained at the default voltage.

It should be noted that the first power is the limited power of the power supply module divided by n. Due to the load balancing feature of the power supply module, the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the output power of this power supply is less than or equal to the first power, then The output power of the power supply module should be less than or equal to the limited power of the power supply module. Therefore, at this time, the output voltage of the managed power supply can be controlled to maintain the default voltage to continue supplying power to the load and charging the energy storage module.

Step 305: If the output power of the power module rises from below the limited power of the power module to greater than the limited power, the power module controls its own output voltage to be lower than the set voltage of the energy storage module, using the power module and the energy storage module as loads powered by.

In the process that only the power module is supplying power to the load, if the power consumed by the load increases to be greater than the limited power of the power module, in order to meet the needs of the load, the output power of the power module will also increase to greater than the power supply in a short time. The limited power of the module. When the power consumed by the load is greater than the limited power of the power supply module for a long time, if the power supply module is only used to supply power to the load, power failure will occur due to the insufficient power supply capability of the power supply module.

In the embodiment of the present application, if the power output by the power module rises from below the limited power of the power module to greater than the limited power, it indicates that the power consumed by the load has changed from being within the power supply capacity of the power supply module to exceeding the power supply capacity of the power supply module. The power supply module and the energy storage module can be combined to supply power to the load to ensure that the load will not lose power when the power consumed by the load exceeds the power supply capacity of the power supply module and ensure the normal operation of the load. In this way, when the power consumed by the load is too large due to the business peak, reliable power supply can be realized through the combination of the power supply module and the energy storage module, thereby ensuring that the business performance is not affected even when the business peaks. Moreover, in the embodiment of the present application, when the power supply module supplies power, the synchronous power supply of the energy storage module is also supported, so that the utilization rate of the energy storage module can be improved.

It should be noted that when the output voltage of the power module is lower than the set voltage of the energy storage module, the energy storage module is in a discharging state. At this time, the energy storage module can automatically share the power consumed by the load that exceeds the power supply capacity of the power module. That is to say, by controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module in the embodiment of the present application, it can be ensured that the part of the power consumed by the load that exceeds the power supply capacity of the power supply module is automatically provided by the energy storage module.

For example, as shown in FIG. 5, the set voltage of the energy storage element is less than the preset voltage. For example, the set voltage of the energy storage element may be 52V, and the preset voltage may be 54.5V. The default output voltage of the power module is the preset voltage. When the output power of the power module rises from below the limited power of the power module to greater than the limited power, the power module controls its own output voltage to decrease until it drops below the set voltage of the energy storage element. At this time, because the output voltage of the power module is less than the set voltage of the energy storage element, the energy storage module is in a discharging state. At this time, the energy storage element supplies power to the load through the discharge circuit, and the power module also supplies power to the load.

Wherein, when the power supply module includes n power management systems and the power supply managed by each power management system, step 305 may be when any one of the n power management systems detects the output of the power supply managed by it. When the power rises from below the first power to greater than the first power, the output voltage of the power supply managed by the control is lower than the set voltage of the energy storage module.

It should be noted that due to the load balancing characteristics of the power supply module, the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the power output by this power supply is the first If the power is lower than the first power, the output power of the power module should be raised from below the limited power of the power module to greater than the limited power, so at this time, the output voltage of the managed power supply can be controlled to be lower than the energy storage module The setting voltage to make the energy storage module in a discharging state.

Further, in order to ensure the reliability of power supply, when the output power of the power module rises from below the limited power of the power module to greater than the limited power, before the power module controls its own output voltage to be lower than the set voltage of the energy storage module, the power module The third instruction information may also be sent to the management module to indicate that the power supply module and the energy storage module will be combined to supply power. At this time, the management module can determine the power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module. After that, when the power supply module controls its output voltage to be lower than the set voltage of the energy storage module, that is, when the power supply module and the energy storage module supply power to the load, the management module can limit the power consumed by the load according to the power cap value. .

It should be noted that when the power supply module and the energy storage module supply power to the load, the total power output by the power supply module and the energy storage module is the power consumed by the load.

In addition, when the management module limits the power consumed by the load according to the power cap value, it may perform a power cap operation when the total power output by the power supply module and the energy storage module is greater than the power cap value. The power capping operation refers to the technology of setting the upper limit of power consumption to the load. The power capping operation is used to limit the power consumed by the load below the power cap value. In this way, the safety of power supply can be guaranteed and the system can be prevented from powering down.

It is worth noting that, in the embodiments of the present application, the power capping value is set in combination with the power supply capabilities of the energy storage module and the power supply module. Compared with the related technology, the power capping is only based on the power supply capability of the power supply module. For example, the power supply capacity of the system can be improved, so that the system can run over frequency and ensure that business performance is not affected.

Among them, when the management module determines the power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module, it can first obtain the maximum output power of the energy storage module. The maximum output power of the energy storage module is the remaining capacity of the energy storage module. Divide by the preset duration; add the maximum output power of the energy storage module and the limited power of the power supply module to obtain the power cap value.

Further, after step 305, that is, after the power supply module controls its own output voltage to be lower than the set voltage of the energy storage module, the following step 306 may also be performed.

Step 306: If the output power of the power supply module drops from above the limited power of the power supply module to less than the limited power, the power supply module controls its own output voltage to be higher than the set voltage of the energy storage module, so that the power supply module supplies power to the load and supplies power to the storage. The module can be charged.

If the output power of the power module drops from the power limit of the power module to less than the power limit, it indicates that the power consumed by the load has probably changed from exceeding the power supply capacity of the power module to within the power supply capacity of the power module. The power module supplies power to the load and charges the energy storage module. In this way, not only can the normal power supply to the load be guaranteed, but also the capacity of the energy storage module can be increased, which facilitates the subsequent use of the energy storage module to supply power to the load.

It should be noted that when the power supply module controls its own output voltage to be higher than the set voltage of the energy storage module, the power supply module can restore its own default output voltage, that is, restore its own output voltage to the preset voltage.

In addition, when the output voltage of the power module is higher than the set voltage of the energy storage module, the energy storage module is in a charging state. At this time, the power module supplies power to the load and charges the energy storage module.

For example, as shown in FIG. 5, the set voltage of the energy storage element is less than the preset voltage. For example, the set voltage of the energy storage element may be 52V, and the preset voltage may be 54.5V. The default output voltage of the power module is the preset voltage. When the output power of the power module drops from the power limit of the power module to less than the power limit, the power module controls its own output voltage to increase until it is higher than the set voltage of the energy storage element. For example, the power module can directly output its own output voltage. The voltage is restored to the preset voltage. At this time, because the output voltage of the power module is greater than the set voltage of the energy storage element, the energy storage module is in a charging state. At this time, the power module charges the energy storage element through the charging circuit and supplies power to the load.

Wherein, when the power supply module includes n power management systems and the power supply managed by each power management system, step 306 may be when any one of the n power management systems detects the output of the power supply managed by it. When the power drops from above the first power to less than the first power, the output voltage of the power supply managed by the control is higher than the set voltage of the energy storage module.

It should be noted that due to the load balancing characteristics of the power supply module, the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the power output by this power supply is the first If the power is lower than the first power, the output power of the power supply module should be reduced from the limited power of the power supply module to less than the limited power, so the output voltage of the managed power supply can be controlled to be higher than that of the energy storage module at this time To recharge the energy storage module and supply power to the load.

It is worth noting that during the process of supplying power to the load, if the power module is powered off, no matter whether the power module is currently charging the energy storage module or the power module and the energy storage module are supplying power to the load, the subsequent energy storage module will be directly used. Supply power to the load, so that the reliability of the power supply can be guaranteed. For example, as shown in Figure 5, when the power module is powered off, the output voltage of the power module is 0, so the output voltage of the power module will be less than the set voltage of the energy storage element, and the energy storage module will be in a discharging state. The energy element supplies power to the load through the discharge circuit.

For ease of understanding, the power supply method provided in the embodiment of the present application will be described with reference to FIG. 6 as an example. FIG. 6 is a power-time graph provided by an embodiment of the present application, which is used to show the trend of the power consumed by the load over time.

After the linkage power supply function is turned on, the power cap value is determined according to the remaining capacity of the energy storage module and the limited power of the power supply module. The power range from the limited power of the power supply module to the power cap value is the joint power supply area of the power supply module and the energy storage module.

Specifically, when the power consumed by the load is less than or equal to the limited power of the power supply module, the power supply module supplies power to the load, that is, before the a1 time, a2 time-a3 time, a4 time-a5 time, and a6 time in FIG. 6, Only the power module supplies power to the load. When the power consumed by the load is greater than the limited power of the power module, the power module and the energy storage module supply power to the load, that is, in Fig. 6 a1 time-a2 time, a3 time-a4 time, a5 time-a6 time, by the power module Combined with the energy storage module to supply power to the load.

Among them, the shaded area shown in FIG. 6 is used to indicate the amount of electricity output by the energy storage module, and the area of each shaded area is the amount of electricity output by the energy storage module in a time period corresponding to each shaded area. It can be seen that during a5 time-a6 time, the energy storage module outputs the most electricity.

In the embodiment of the present application, the power output by the power module is determined when the power module supplies power to the load. After that, if the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, the output voltage of the control power supply module is lower than the set voltage of the energy storage module, and the power supply module and the energy storage module supply power to the load. Ensure the normal operation of the load. In this way, when the power consumed by the load is too large due to the business peak, reliable power supply can be realized through the combination of the power supply module and the energy storage module, so as to ensure that the business performance is not affected even at the peak of the business.

Fig. 7 is a schematic diagram of a power supply system provided by an embodiment of the present application. Referring to FIG. 7, the system includes a power supply module 701 and an energy storage module 702. The output end of the power supply module 701 is connected to the charging end of the energy storage module 702, and the output end of the power supply module 701 and the discharge end of the energy storage module 702 are both connected to the load. , The power module 701 is connected to the mains.

The power module 701 is used to determine the power output by the power module 701 when the power module 701 supplies power to the load;

The power supply module 701 is also used to control the output voltage of the power supply module 701 to be lower than the set voltage of the energy storage module 702 when the output power of the power supply module 701 rises from below the limited power of the power supply module 701 to greater than the limited power, so that the power supply module 701 and energy storage module 702 supply power to the load.

Optionally, the power supply module 701 is also used for:

When the linked power supply function is enabled and the output power of the power module 701 rises from below the limited power of the power module 701 to greater than the limited power, the output voltage of the power module 701 is controlled to be lower than the set voltage of the energy storage module 702.

Optionally, referring to FIG. 8, the system further includes a management module 703. One transmission end of the management module 703 is connected to the transmission end of the power supply module 701, and the other transmission end of the management module 703 is connected to the transmission end of the energy storage module 702;

The management module 703 is used to predict the power consumed by the load in the next time period. When the predicted power is greater than the limited power of the power supply module 701, turn on the linkage power supply function; or, for the power output of the power module 701 to be greater than the power supply module When the power of 701 is limited, determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module 702 and the second power, the second power is the difference between the power output by the power module 701 and the limited power of the power module 701;

The management module 703 is further configured to send first indication information to the power supply module 701 when the linkage power supply function has been turned on;

The power supply module 701 is further configured to determine that the linked power supply function is turned on when the first instruction information sent by the management module 703 is received.

Optionally, the power supply module 701 includes n power management systems and n power supplies, the n power management systems correspond to the n power supplies one-to-one, and each power management system of the n power management systems is used to manage the corresponding power supply. n is an integer greater than or equal to 2;

Each of the n power management systems is used to control the output voltage of the managed power supply to be lower than the energy storage module 702 when the output power of the managed power supply rises from below the first power to greater than the first power The first power is the limited power of the power supply module 701 divided by n.

Optionally, the power supply module 701 is also used for:

When the output power of the power module 701 drops from above the limited power to less than the limited power, the output voltage of the power module 701 is controlled to be higher than the set voltage of the energy storage module 702, so that the power module 701 supplies power to the load and charges the energy storage module 702 .

The power module 701 is configured to send third indication information to the management module 703 when the power output by the power module 701 rises from below the limited power of the power module 701 to greater than the limited power;

The management module 703 is configured to determine the power cap value according to the remaining capacity of the energy storage module 702 and the limited power of the power module 701 when receiving the third instruction information sent by the power module 701, and limit the power consumed by the load according to the power cap value .

In the embodiment of the present application, the power output by the power module is determined when the power module supplies power to the load. After that, if the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, the output voltage of the control power supply module is lower than the set voltage of the energy storage module, and the power supply module and the energy storage module supply power to the load. Ensure the normal operation of the load. In this way, when the power consumed by the load is too large due to the business peak, reliable power supply can be realized through the combination of the power supply module and the energy storage module, thereby ensuring that the business performance is not affected even when the business peaks.

It should be noted that: the foregoing power supply system embodiment and the power supply method embodiment belong to the same concept, and the specific implementation process of the operations performed by the power supply module 701, the energy storage module 702, and the management module 703 can be referred to as shown in FIG. 3 above. The embodiment of the power supply method will not be repeated here.

FIG. 9 is a schematic structural diagram of a power supply device provided by an embodiment of the present application. The power supply device may be the power supply module 101 shown in FIG. 1, the power supply module described in the embodiment of FIG. 3, or the power supply module 701 described in the embodiment of FIG. 7. Referring to FIG. 9, the power supply device may include a power management system 901 and a power supply 902. The power management system 901 may be implemented in the form of a single board. The power management system 901 may include an interface card 9011, a processor 9012, and a memory 9013.

The interface card 9011 is used to realize the docking function with other devices. External data can enter the interface card 9011 and be transmitted to the processor 9012, and the data processed by the processor 9012 can be sent from the interface card 9011.

The processor 9012 may be a microprocessor (including a central processing unit (CPU), etc.), an application-specific integrated circuit (ASIC), or may be one or more for controlling the solution of the application Integrated circuit for program execution.

The memory 9013 can be read-only memory (ROM), random access memory (RAM), electrically erasable programmable read-only memory (read-only memory, EEPROM), disk storage The medium or other magnetic storage devices, or any other medium that can be used to store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

The memory 9013 is used to store the program code 910 for executing the solution of the present application, and the processor 9012 is used to execute the program code 910 stored in the memory 9013. The power management system 902 can use the processor 9012 and the program code 910 in the memory 9013 to implement the operations performed by the power module in the embodiment of FIG. 3 above.

FIG. 10 is a schematic structural diagram of a management device provided by an embodiment of the present application. The management device may be the management module 103 shown in FIG. 1, the management module described in the embodiment of FIG. 3, or the management module 703 described in the embodiment of FIG. 7. The management device can be implemented in the form of a single board. Referring to FIG. 10, the management device may include an interface card 1001, a processor 1002, and a memory 1003.

The interface card 1001 is used to implement the docking function with other devices. External data can enter the interface card 1001 and be transmitted to the processor 1002, and the data processed by the processor 1002 can be sent from the interface card 1001.

The processor 1002 may be a microprocessor (including a CPU, etc.), an ASIC, or may be one or more integrated circuits for controlling the execution of programs in the solution of the present application.

The memory 1003 may be ROM, RAM, EEPROM, magnetic disk storage media or other magnetic storage devices, or any other media that can be used to store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.

The memory 1003 is used to store the program code 1010 for executing the solution of the present application, and the processor 1002 is used to execute the program code 1010 stored in the memory 1003. The management device can implement the operations performed by the management module in the embodiment of FIG. 3 above through the processor 1002 and the program code 1010 in the memory 1003.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. 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 a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (for example: coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (for example: infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example: floppy disk, hard disk, tape), optical medium (for example: Digital Versatile Disc (DVD)) or semiconductor medium (for example: Solid State Disk (SSD)) Wait.

The above-mentioned examples provided for this application are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application. Inside.

Claims

A power supply method, characterized in that it is applied to a system including a power supply module, an energy storage module, and a load, the output end of the power supply module is connected to the charging end of the energy storage module, and the output end of the power supply module is connected to the The discharge ends of the energy storage modules are all connected to the load, the power module is connected to the mains, and the method includes:

Determining the power output by the power supply module when the power supply module supplies power to the load;

If the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, the output voltage of the power supply module is controlled to be lower than the set voltage of the energy storage module, so that the power supply The module and the energy storage module supply power to the load.
The method of claim 1, wherein if the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, control the output voltage of the power supply module to be low The set voltage of the energy storage module includes:

If the linkage power supply function has been activated, and the power output by the power module rises from below the limited power of the power module to greater than the limited power, control the output voltage of the power module to be lower than the setting of the energy storage module Voltage.
The method according to claim 2, wherein the method further comprises:

If the first instruction information sent by the management module is received, it is determined that the linked power supply function is turned on, one transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the power supply module. The transmission end connection of the energy storage module;

Wherein, the first indication information is sent by the management module when it predicts that the power consumed by the load in the next time period is greater than the limited power of the power supply module; or

The first indication information is when the power output by the power supply module is greater than the limited power of the power supply module by the management module, and the linkage power supply function is determined to be enabled according to the remaining capacity and the second power of the energy storage module The second power is the difference between the power output by the power supply module and the limited power of the power supply module.
The method according to any one of claims 1-3, wherein the power supply module includes n power management systems and n power supplies, and the n power management systems correspond to the n power supplies one to one, so Each of the n power management systems is used to manage a corresponding power source, and the n is an integer greater than or equal to 2;

The controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module if the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power includes:

For any one of the n power supplies, if the output power of the one power supply rises from below the first power to greater than the first power, control the output voltage of the one power supply to be lower than the energy storage module The first power is the limited power of the power supply module divided by n.
The method according to claim 1, wherein after said controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module, the method further comprises:

If the output power of the power supply module decreases from above the limited power to less than the limited power, the output voltage of the power supply module is controlled to be higher than the set voltage of the energy storage module, so that the power supply module is The load supplies power and charges the energy storage module.
The method of claim 1, wherein the method further comprises:

If the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power, then the third indication information is sent to the management module, and the management module is based on the remaining capacity of the energy storage module and The limited power of the power supply module determines a power cap value, and the power consumed by the load is limited according to the power cap value. One transmission end of the management module is connected to the transmission end of the power supply module, and the management module The other transmission end is connected with the transmission end of the energy storage module.
A power supply system, characterized in that the system includes a power supply module and an energy storage module, the output end of the power supply module is connected to the charging end of the energy storage module, and the output end of the power supply module is connected to the energy storage module. The discharge ends of the modules are all connected to the load, and the power module is connected to the mains;

The power supply module is configured to determine the power output by the power supply module when the power supply module supplies power to the load;

The power supply module is further configured to control the output voltage of the power supply module to be lower than that of the energy storage module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power. The voltage is set so that the power supply module and the energy storage module supply power to the load.
The system according to claim 7, wherein the power supply module is further used for:

When the linkage power supply function has been activated and the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power, control the output voltage of the power supply module to be lower than the setting of the energy storage module Voltage.
The system according to claim 8, wherein the system further comprises a management module, one transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the power supply module. The transmission end connection of the energy storage module;

The management module is used to predict the power consumed by the load in the next time period, and when the predicted power is greater than the limited power of the power supply module, turn on the linkage power supply function; or When the output power of the module is greater than the limited power of the power supply module, determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power, where the second power is the power output by the power supply module The difference with the limited power of the power supply module;

The management module is further configured to send first indication information to the power supply module when the linkage power supply function has been turned on;

The power supply module is further configured to determine that the linkage power supply function is turned on when the first instruction information sent by the management module is received.
The system according to any one of claims 7-9, wherein the power supply module includes n power management systems and n power supplies, and the n power management systems correspond to the n power supplies one-to-one, so Each of the n power management systems is used to manage a corresponding power source, and the n is an integer greater than or equal to 2;

Each of the n power management systems is configured to control the output voltage of the managed power supply to be lower than when the power output by the managed power supply rises from below the first power to greater than the first power For the set voltage of the energy storage module, the first power is obtained by dividing the limited power of the power supply module by n.
The system according to claim 7, wherein the power supply module is further used for:

When the output power of the power supply module drops from above the limited power to less than the limited power, the output voltage of the power supply module is controlled to be higher than the setting voltage of the energy storage module, so that the power supply module is The load supplies power and charges the energy storage module.
The system according to claim 7, wherein the system further comprises a management module, one transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the power supply module. The transmission end connection of the energy storage module;

The power supply module is configured to send third indication information to the management module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power;

The management module is configured to determine a power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module when receiving the third indication information sent by the power supply module, and to cap the power according to the power The value limits the power consumed by the load.
A power supply device, characterized in that the power supply device includes a power management system and a power supply, and the power management system is used to manage the power supply;

The power management system includes an interface card, a processor, and a memory; the processor sends data or receives data through the interface card; the memory is used to store and support the power management system to execute any one of claims 1-6 The program of the method described in item, and storing the data involved in implementing the method of any one of claims 1-6; the processor is configured to execute the program stored in the memory.
A computer-readable storage medium in which instructions are stored, and the instructions are loaded by a processor and execute the method according to any one of claims 1-6.