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

Abstract

Disclosed are a power supply method, system, power supply device and storage medium, and belong to the electronic technical field.The method is applied to a system comprising a power module, an energy storage module, a management module and a load, the output end of the power module is connected with the charging end of the energy storage module, the output end of the power module and the discharging end of the energy storage module are both connected with the load, and the power module is connected with the mains power supply.In the process of the power module supplying power for the load, the power output by the power module is determined.If the power output by the power module is increased from below the limited power of the power module to greater than the limited power, the output voltage of the power module is controlled to be lower than the set voltage of the energy storage module, so as to supply power for the load by the power module and the energy storage module, and the normal operation of the load is ensured.In this way, when the power consumed by the load is too large due to the business peak value, reliable power supply can be realized by the power module and the energy storage module in combination, so that the business performance can be ensured to be not affected even at the business peak value.

Description

[0001] This application is a divisional application of the application number 202010146819.4, application date 2020.03.05, and invention name "power supply method, system, power supply device and storage medium" invention patent application submitted to the China Patent Office. TECHNICAL FIELD

[0002] The present application relates to the electronic technical field, in particular to a power supply method, system, power supply device and storage medium. BACKGROUND

[0003] The power supply reliability plays a crucial role in maintaining the normal operation of electronic devices. For the cabinet in the machine room, it generally includes power supply and load. The power supply accesses the mains, which can power the load. The load includes servers, switches, etc., which can provide corresponding services.

[0004] 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 appears, the power supply may be insufficient due to the excessive power consumption of the load, resulting in power failure.

[0005] Therefore, the power capping mechanism is added. Specifically, when the power consumed by the load is greater than the rated power of the power supply, the power capping operation is performed to limit the power consumed by the load below the rated power of the power supply, ensuring that the power supply does not fail. However, since the power is limited at the service peak, the service performance will be affected. SUMMARY

[0006] The present application provides a power supply method, system, power supply device, storage medium and program product, which can ensure that the service performance is not affected at the service peak. The technical solution is as follows:

[0007] 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, a management module and a load. The output end of the power supply module is connected with the charging end of the energy storage module. The output end of the power supply module and the discharging end of the energy storage module are both connected with the load. The power supply module accesses the mains. The management module is in communication connection with the power supply module and the energy storage module. The management module is used to start and / or shut down the linkage power supply function.

[0008] In the method, during the process that the power supply module supplies power to the load, the power output by the power supply module is determined. If the power output by the power supply module is increased 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 as to supply power to the load by the power supply module and the energy storage module.

[0009] It should be noted that the commercial power is an alternating current of a working frequency, and is a power resource extracted from a power grid. The commercial power is generally provided by a power company.

[0010] In addition, the limited power of the power module can be set in advance, and 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 at which the power module can continuously work normally.

[0011] Further, 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, and at this time, the energy storage module can automatically share the part of the power consumed by the load that exceeds the power supply capacity of the power module. That is, in the embodiment of the present application, by controlling the output voltage of the power module to be lower than the set voltage of the energy storage module, it can be ensured that the part of the power consumed by the load that exceeds the power supply capacity of the power module is automatically provided by the energy storage module.

[0012] In the present application, when the power consumed by the load is too large due to the service peak, reliable power supply is realized by the power module and the energy storage module in combination, so that the service performance can be ensured not to be affected even at the service peak. Moreover, in the case of power supply by the power module, synchronous power supply of the energy storage module is also supported, so that the utilization rate of the energy storage module can be improved.

[0013] Alternatively, the above steps can be performed by the power module, specifically, by the power management system in the power module. Of course, the above steps can also be performed by other separately arranged modules, for example, a management module can be separately arranged in the system to perform the steps. In actual application, a suitable execution subject can be selected according to the needs, and the present application does not limit the execution subject.

[0014] In a possible implementation, a linkage power supply function can be arranged, and the linkage power supply function refers to a function of jointly supplying power to the load by the power module and the energy storage module. In this case, when the linkage power supply function has been started, and the power output by the power module is increased from below the limited power of the power module to greater than the limited power, the output voltage of the power module is then controlled to be lower than the set voltage of the energy storage module. In this way, it can be ensured that the power supply is jointly provided by the power module and the energy storage module when there is a linkage power supply demand.

[0015] 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 stable output that does not change continuously. If the voltage at the charging end 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 at the charging end 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.

[0016] Optionally, in the present application, the power module can determine that the linkage power supply function has been started when receiving the first indication information sent by the management module. After determining that the linkage power supply function has been started, 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 power output by the power module is increased 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 with the transmission end of the power module, and the other transmission end of the management module can be connected with the transmission end of the energy storage module.

[0017] In one case, the first indication information can be sent by the management module when predicting that the power consumed by the load in the next time period is greater than the limited power of the power module.

[0018] In the present 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 module, it indicates that the power consumed by the load is likely to exceed the power supply capacity of the power module, and therefore the linkage power supply function can be started at this time so that the power module and the energy storage module can be jointly used to supply power to the load subsequently.

[0019] Optionally, the operation of the management module to predict the power consumed by the load in the next time period can be: predicting the power consumed by the load in the next time period according to the time range of the next time period and the power consumption relationship of the load; or predicting the power consumed by the load in the next time period according to the time range of the next time period and the service running relationship of the load, and predicting the power consumed by the load in the next time period according to the predicted service.

[0020] It should be noted that the power consumption relationship of the load is obtained by analyzing the power consumed by the load in the past in each time period. That is, a time period and load consumption power correlation database can be established, and then the power consumption relationship of the load can be established by learning algorithm according to the correlation database, which can predict the power consumed by the load in different time periods. The power consumption relationship can be a function relationship, or a neural network model, etc.

[0021] In addition, the service running relationship of the load is obtained by analyzing the services run by the load in the past in each time period. That is, a time period and load running service correlation database can be established, and then the service running relationship of the load can be established by learning algorithm according to the correlation database, which can predict the services run by the load in different time periods. The service running relationship can be a function relationship, or a neural network model, etc.

[0022] In another case, the first indication information can 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 started according to the remaining capacity of the energy storage module and the second power, the second power being the difference between the power output by the power module and the limited power of the power module.

[0023] Optionally, the operation of determining whether to start the linkage power supply function according to the remaining capacity of the energy storage module and the second power can be that if the value obtained by dividing the remaining capacity of the energy storage module by the preset time length is greater than or equal to the second power, the linkage power supply function is started.

[0024] In the present application, when the linkage power supply function has not been started, 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 capability of the power module, and thus the power output by the power module can be reduced by 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 capability of the power module.

[0025] The remaining capacity of the energy storage module can be divided by the preset time length to obtain the maximum output power of the energy storage module. The maximum output power of the energy storage module is the maximum power that can be output by the energy storage module under the condition of at least needing to supply power for the preset time length. Thus, if the maximum output power of the energy storage module is greater than or equal to the second power, it indicates that the energy storage module is sufficient to share the part of the power consumed by the load that exceeds the power supply capability of the power module, and thus the linkage power supply function can be started.

[0026] Optionally, in the present application, the management module itself can start the linkage power supply function. After starting the linkage power supply function, the management module can control the output voltage of the power module to be lower than the set voltage of the energy storage module when the power output by the power module increases from below the limited power of the power module to greater than the limited power.

[0027] It should be noted that there can be various ways for the management module to start the linkage power supply function. For example, the management module can predict the power consumed by the load in the next time period, and start the linkage power supply function when the predicted power is greater than the limited power of the power module. Alternatively, the management module can determine whether to start 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 module is greater than the limited power of the power module.

[0028] 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 by one, each of the n power management systems is configured to manage a corresponding power supply, and n is an integer greater than or equal to 2; if the power output by the power supply module is increased from below a limit power of the power supply module to greater than the limit power, the operation of controlling the output voltage of the power supply module to be lower than the setting voltage of the energy storage module can be: for any one of the n power supplies, if the power output by the power supply is increased from below a first power to greater than the first power, the output voltage of the power supply is controlled to be lower than the setting voltage of the energy storage module, and the first power is the limit power of the power supply module divided by n.

[0029] In the present application, due to the load balancing characteristics of the power supply module, the powers output by the n power supplies in the power supply module are the same or similar, so for any one of the n power supplies, if the power output by the power supply is increased from below a first power to greater than the first power, the power output by the power supply module should be increased from below a limit power of the power supply module to greater than the limit power, and thus the output voltage of the power supply can be controlled to be lower than the setting voltage of the energy storage module at this time, so that the energy storage module is in a discharging state.

[0030] In a possible implementation, after the output voltage of the power supply module is controlled to be lower than the setting voltage of the energy storage module, if the power output by the power supply module is decreased from above the limit power to less than the limit power, the output voltage of the power supply module can also be controlled to be higher than the setting voltage of the energy storage module, so that the power supply module supplies power to the load and charges the energy storage module.

[0031] In the present application, if the power output by the power supply module is decreased from above a limit power of the power supply module to less than the limit power, it indicates that the power consumed by the load is very likely to have changed from exceeding the power supply capability of the power supply module to being within the power supply capability of the power supply module, and thus the power supply module can supply power to the load and charge the energy storage module. In this way, not only can the load be normally supplied with power, but also the capacity of the energy storage module can be improved, facilitating subsequent use of the energy storage module to supply power to the load.

[0032] In a possible implementation, the power supply module can control the output voltage of the power supply module to be lower than the setting voltage of the energy storage module when the power output by the power supply module is increased from below a limit power of the power supply module to greater than the limit power. In this case, the power supply module can also send third indication information to the management module, the management module determines a power cap value according to the remaining capacity of the energy storage module and the limit power of the power supply module, and limits the power consumed by the load according to the power cap value.

[0033] In another possible implementation, 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 increases from below the limit power of the power supply module to greater than the limit power. In this case, the management module can further determine the power cap value according to the remaining capacity of the energy storage module and the limit power of the power supply module, and limit the power consumed by the load according to the power cap value.

[0034] In this application, the management module can set the power cap value in combination with the power supply capabilities of the energy storage module and the power supply module during the process of supplying power to the load by the energy storage module and the power supply module. Compared with the mechanism of only relying on the power supply capability of the power supply module to cap the power in the related art, this application can improve the power supply capability of the system, so that the system can run at a higher frequency, and the business performance is guaranteed to be unaffected.

[0035] Optionally, the operation of determining the power cap value according to the remaining capacity of the energy storage module and the limit power of the power supply module can be: adding the limit power of the power supply module to a value obtained by dividing the remaining capacity of the energy storage module by a preset time length to obtain the power cap value.

[0036] It should be noted that the remaining capacity of the energy storage module divided by the preset time length can obtain the maximum output power of the energy storage module. The maximum output power of the energy storage module is the maximum power that the energy storage module can output in the case of at least needing to supply power for a preset time length. Therefore, adding the maximum output power of the energy storage module to the limit power of the power supply module can obtain the maximum power that the energy storage module and the power supply module can output in combination, which is used as the power cap value.

[0037] In a second aspect, a power supply system is provided, the system comprising a power supply module and an energy storage module, an output end of the power supply module being connected to a charging end of the energy storage module, an output end of the power supply module and a discharging end of the energy storage module both being connected to a load, and the power supply module being connected to a mains power supply;

[0038] The power supply module is configured to determine the power output by the power supply module during the process of supplying power to the load by the power supply module.

[0039] The power supply module is further configured to 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 increases from below the limit power of the power supply module to greater than the limit power, so as to supply power to the load by the power supply module and the energy storage module.

[0040] Optionally, the power supply module is further configured to:

[0041] When the linkage power supply function is started and the power output by the power supply module is increased 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.

[0042] Optionally, the system further comprises a management module, one transmission end of the management module is connected with the transmission end of the power supply module, and another transmission end of the management module is connected with the transmission end of the energy storage module.

[0043] The management module is configured to predict the power consumed by the load in the next time period, and start the linkage power supply function when the predicted power is greater than the limited power of the power supply module; or determine whether to start the linkage power supply function according to the remaining capacity of the energy storage module and a second power when the power output by the power supply module is greater than the limited power of the power supply module, the second power being the difference between the power output by the power supply module and the limited power of the power supply module.

[0044] The management module is further configured to send first indication information to the power supply module when the linkage power supply function is started.

[0045] The power supply module is further configured to determine that the linkage power supply function has been started when the first indication information sent by the management module is received.

[0046] Optionally, the power supply module comprises n power supply management systems and n power supplies, the n power supply management systems correspond to the n power supplies one by one, each power supply management system in the n power supply management systems is configured to manage a corresponding power supply, and n is an integer greater than or equal to 2.

[0047] Each power supply management system in the n power supply management systems is configured to control the output voltage of the managed power supply to be lower than the set voltage of the energy storage module when the power output by the managed power supply is increased from below a first power to greater than the first power, the first power being the limited power of the power supply module divided by n.

[0048] Optionally, the power supply module is further configured to:

[0049] When the power output by the power supply module is decreased 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 supplies power to the load and charges the energy storage module.

[0050] Optionally, the system further comprises a management module, one transmission end of the management module is connected with the transmission end of the power supply module, and another transmission end of the management module is connected with the transmission end of the energy storage module.

[0051] The power module is configured to send third indication information to the management module when the power output by the power module increases from below the limit power to greater than the limit power.

[0052] The management module is configured to determine a power cap value according to the remaining capacity of the energy storage module and the limit power of the power module when receiving the third indication information sent by the power module, and limit the power consumed by the load according to the power cap value.

[0053] In a third aspect, a power supply device is provided, which includes a power management system and a power supply, the power management system being configured to manage the power supply; the power management system includes an interface card, a processor and a memory; the processor transmits or receives data through the interface card; the memory is configured to store programs supporting the power management system to execute the power supply method provided in the first aspect, and store data involved in the power supply method provided in the first aspect. The processor is configured to execute the programs stored in the memory.

[0054] In a fourth aspect, a computer readable storage medium is provided, which stores instructions, the instructions being loaded and executed by a processor to perform the power supply method provided in the first aspect.

[0055] In a fifth aspect, a computer program product containing instructions is provided, the instructions being loaded and executed by a processor to perform the power supply method provided in the first aspect.

[0056] The technical effects obtained by the second aspect, the third aspect, the fourth aspect and the fifth aspect are similar to the technical effects obtained by the corresponding technical means in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1 is a schematic diagram of a system provided by an embodiment of the present application;

[0058] Figure 2 is a schematic diagram of a cabinet-level system provided by an embodiment of the present application;

[0059] Figure 3 is a flowchart of a power supply method provided by an embodiment of the present application;

[0060] Figure 4 is a schematic diagram of another system provided by an embodiment of the present application;

[0061] Figure 5 is a schematic diagram of another system provided by an embodiment of the present application;

[0062] Figure 6 is a power-time curve provided by an embodiment of the present application;

[0063] Figure 7 is a schematic diagram of a power supply system provided by an embodiment of the present application;

[0064] Figure 8 is a schematic diagram of another power supply system provided by an embodiment of the present application;

[0065] Figure 9 is a structural schematic diagram of a power supply device provided by an embodiment of the present application;

[0066] Figure 10 is a structural schematic diagram of a management device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0068] It should be understood that the "multiple" mentioned in the present application refers to two or more than two. In the description of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; "and / or" in this text is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, in order to clearly describe the technical solutions of the present application, the same items or similar items with basically the same function and role are distinguished by using "first", "second" and the like. Those skilled in the art can understand that "first", "second" and the like do not limit the quantity and execution order, and "first", "second" and the like do not necessarily mean different.

[0069] Before the embodiments of the present application are explained in detail, the system architecture of the embodiments of the present application will be described first.

[0070] Figure 1 is a schematic diagram of a system related to an embodiment of the present application. Referring to Figure 1 , the system comprises a power supply module 101, an energy storage module 102, a management module 103 and a load 104.

[0071] The power module 101 is connected to the mains, which is the power supply from the power grid. The mains can be the power supply provided by the power company. The output of the power module 101 is connected to the charging end of the energy storage module 102, and the output of the power module 101 and the discharging end 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 module 101, and the other transmission end of the management module 103 is connected to the transmission end of the energy storage module 102.

[0072] For example, the output of the power module 101 and the discharging end of the energy storage module 102 can be connected to the load 104 through busbars. The busbar is a conductive material, which is a copper bar or aluminum bar connected between the main switch and each branch switch. The main switch is a switch connected between the output of the power module 101 and the charging end of the energy storage module 102 and the busbar, and the power supply of the power module 101 and the energy storage module 102 to the busbar can be controlled through the main switch. The branch switch is a switch connected between the busbar and the load 104, and the power supply of the busbar to the load 104 can be controlled through the branch switch.

[0073] The power module 101 can convert the alternating current of the mains into low-voltage direct current and provide it to the load 104, such as converting 220V alternating current into 48V direct current and providing 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.

[0074] The management module 103 can monitor the operation of the power module 101 and the energy storage module 102, specifically the power output of the power module 101, the power output of the energy storage module 102, the remaining capacity of the energy storage module 102, etc., and determine whether to start the linkage power supply function according to the above information. The linkage power supply function refers to the function of jointly supplying power to the load 104 by the power module 101 and the energy storage module 102.

[0075] For example, the system can be a cabinet-level system as shown in Figure 2 The power module 101, the energy storage module 102, the management module 103, and the load 104 are all located in the cabinet. The cabinet can also include a power supply frame, which includes a power supply slot and a single board slot.

[0076] The power module 101 includes three power supplies, which are located in the power supply slots in the power supply frame. The energy storage module 102 can be a battery backup unit (BBU) including three batteries. The management module 103 can be a single board, which is located in the single board slot in the power supply frame, such as a remote management controller (RMC) board. The management module 103 and the power module 101 can communicate through a controller area network (CAN) interface, and the management module 103 and the energy storage module 102 can also communicate through the CAN interface. The load 104 can include servers and switches.

[0077] Of course, the system can be any system having the power module 101 and the energy storage module 102 in addition to the cabinet-level system described above, and embodiments of the present application do not limit this.

[0078] Figure 3 is a flowchart of a power supply method provided by an embodiment of the present application. The method can be applied to Figure 1 the system shown in FIG. 1.

[0079] Referring to Figure 3 , the method can include the following steps:

[0080] Step 301: The power module determines whether the linkage power supply function is enabled.

[0081] It should be noted that the linkage power supply function refers to a function of jointly supplying power to the load by the power module and the energy storage module. That is, under the condition that the linkage power supply function is enabled, the power module and the energy storage module can supply power to the load at the same time; under the condition that the linkage power supply function is not enabled, only the power module can supply power to the load. Moreover, under the condition that the linkage power supply function is not enabled, the power module can also charge the energy storage module.

[0082] In addition, the power module can be connected to the mains, and the power module can convert alternating current of the mains into direct current low voltage, such as converting 220V alternating current into 48V direct current. The energy storage module is a device for storing electrical energy, and the energy storage module can supply power to the load when the power module is powered off, such as a battery, a super capacitor, etc. The load is a device that consumes electrical energy, such as a switch, a server, etc., and embodiments of the present application do not limit this.

[0083] The linkage power supply function can be started by the management module in various ways. The management module can send first indication information to the power module to indicate that the linkage power supply function has been started when starting the linkage power supply function. The management module can send second indication information to the power module to indicate that the linkage power supply function has been closed when closing the linkage power supply function. That is, the power module can determine that the linkage power supply function has been started when receiving the first indication information, and can determine that the linkage power supply function has not been started when receiving the second indication information.

[0084] Specifically, the linkage power supply function can be started manually by a technician or automatically by the management module. For example, the management module can start the linkage power supply function in the following three possible ways.

[0085] In the first possible way, the management module starts the linkage power supply function when receiving a start instruction.

[0086] In this way, the management module can close the linkage power supply function when receiving a close instruction after starting the linkage power supply function.

[0087] It should be noted that the start instruction is used to start the linkage power supply function, and the close instruction is used to close the linkage power supply function. The start instruction and the close instruction can be input into the management module by a technician. For example, the technician can trigger the start instruction or the close instruction on the management module through clicking operation, voice operation, gesture operation, somatosensory operation, etc.

[0088] For example, the management module can display a control interface, which can include a control button. The technician can trigger the start instruction by clicking the control button, and the management module can start the linkage power supply function after receiving the start instruction. Moreover, the technician can also trigger the close instruction by clicking the control button after the management module starts the linkage power supply function, and the management module can close the linkage power supply function after receiving the close instruction.

[0089] 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 module, the linkage power supply function is started.

[0090] In this way, if the predicted power is less than or equal to the limited power of the power module, the management module does not start the linkage power supply function. Moreover, the management module can obtain the power consumed by the load in the current time period after starting the linkage power supply function, and if the power consumed by the load in the current time period is less than or equal to the limited power of the power 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 module, the management module closes the linkage power supply function.

[0091] It should be noted that the length of the time period can be set in advance. For example, the length of the time period can be set as 10 minutes, i.e., every 10 minutes is a time period.

[0092] In addition, the limited power of the power module can be set in advance, and the limited power of the power module can be the maximum power that the power module can output. The limited power of the power module can be equal to the rated power of the power module, or slightly less than the rated power of the power module, such as the limited power of the power module can be 0.9 times the rated power of the power module, etc. 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 continuously work normally.

[0093] Further, 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 capability of the power module, and therefore the management module can start the linkage power supply function so that the power module and the energy storage module can jointly supply power to the load in the future.

[0094] 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 module, it indicates that the power consumed by the load in the future is likely to not exceed the power supply capability of the power module, and therefore the management module can not start the linkage power supply function, and the power module continues to supply power to the load.

[0095] If the power consumed by the load in the current time period is less than or equal to the limited power of the power module after the management module starts the linkage power supply function, 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 module, it indicates that not only the power consumed by the load in the current time does not exceed the power supply capability of the power module, but also the power consumed by the load in the future is likely to not exceed the power supply capability of the power module, and therefore the management module can turn off the linkage power supply function so that the power module supplies power to the load in the future.

[0096] Wherein, when the linkage power supply function has not been started, 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 started, 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.

[0097] For example, as shown in FIG. 1, the power module 100 can supply power to the load 200, and the energy storage module 300 can supply power to the load 200. Figure 4As shown, the management module is configured to turn on or turn off the linkage power supply function. The management module can be a single board, which can include a processor that can be a dedicated hardware or chip, such as a microprocessor (including a central processing unit (CPU), etc.), an application-specific integrated circuit (ASIC), or one or more integrated circuits for turning on or turning off the linkage power supply function, etc. The power supply module can include n power management systems and n power supplies, the n power management systems correspond to the n power supplies one by one, and n is an integer greater than or equal to 2. Each power management system is configured to manage a corresponding power supply, and each power management system can detect the output power of the power supply it manages, such as a digital signal processor (DSP) or the like. The energy storage module can include a plurality of energy storage management systems and energy storage elements managed by each energy storage management system, and each energy storage management system can detect the output power of the energy storage element it manages, such as a battery management system (BMS) when the energy storage element is a battery.

[0098] One transmission end of the management module is connected to a transmission end of the power supply module, and another transmission end of the management module is connected to a transmission end of the energy storage module. Each power management system in the power supply module can 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.

[0099] When the linkage power supply function has not been turned on, the processor in the management module can accumulate all the output power sent by the power supply module to obtain the power consumed by the load in the current time period. When the linkage 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.

[0100] The operation of the management module predicting the power consumed by the load in the next time period can be: the management module predicts the power consumed by the load in the next time period according to the time range of the next time period through the power consumption relationship of the load; or the management module predicts the service running by the load in the next time period according to the time range of the next time period through the service running relationship of the load, and predicts the power consumed by the load in the next time period according to the predicted service.

[0101] It should be noted that the power consumption relationship of the load is obtained by analyzing the power consumed by the load in each time period in the past. That is, the management module can establish a correlation database of time periods and power consumed by the load, and then establish the power consumption relationship of the load by a learning algorithm according to the correlation database, which can predict the power consumed by the load in different time periods.

[0102] The power consumption relationship can be a function relationship or a neural network model, and the embodiments of the present application do not limit the same. For example, when the power consumption relationship is a function relationship, the independent variable in the function relationship can be a time range, and the dependent variable in the function relationship can be consumed power. In this way, the function value obtained by substituting a certain time range into the function relationship is the power consumed by the load in the time range. For another example, when the power consumption 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 consumed power. In this way, the output of the neural network model is the power consumed by the load in the time range after inputting a certain time range into the neural network model.

[0103] Wherein, when the management module predicts the power consumed by the load in the next time period according to the time range of the next time period through the power consumption relationship of the load, the management module can input the time range of the next time period into the power consumption relationship, and take the power output by the power consumption relationship as the predicted power consumed by the load in the next time period.

[0104] It should be noted that the business running relationship of the load is obtained by analyzing the business run by the load in each time period in the past. That is, the management module can establish a correlation database of time periods and businesses run by the load, and then establish the business running relationship of the load by a learning algorithm according to the correlation database, which can predict the business run by the load in different time periods.

[0105] The service running relationship can be a function relationship or a neural network model, and the embodiments of the present application do not limit the same. For example, when the service running relationship is a function relationship, the independent variable in the function relationship can be a time range, and the dependent variable in the function relationship can be a service identifier. In this way, the function value obtained by substituting a certain time range into the function relationship is the service identifier of the service running in the time range. For another example, when the service running 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 service identifier. In this way, the output of the neural network model is the service identifier of the service running in the time range after inputting a certain time range into the neural network model. The service identifier is used to identify the service, and can be a service name, a code, etc.

[0106] When the management module predicts the service running in the next time period according to the time range of the next time period through the service running relationship of the load, the management module can input the time range of the next time period into the service running relationship, and take the service identified by the service identifier output by the service running relationship as the predicted service running in the next time period.

[0107] When the management module predicts the power consumed by the load in the next time period according to the predicted service, the management module can obtain the corresponding power consumption as the predicted power consumed by the load in the next time period according to the service identifier of the predicted service from the corresponding relationship between the service identifier and the power consumption.

[0108] It should be noted that the corresponding relationship between the service identifier and the power consumption can be set in advance, and the power consumption corresponding to each service identifier is the power that the load usually consumes when running the service identified by the service identifier. For example, the service identifier of the predicted service is service identifier 1, and the management module can obtain the corresponding power consumption as power 1 from the corresponding relationship between the service identifier and the power consumption shown in Table 1 below according to service identifier 1, and take power 1 as the predicted power consumed by the load in the next time period.

[0109] Table 1

[0110] Service identification Consumed power Service identification 1 Power 1 Service identification 2 Power 2 Service identification 3 Power 3 …… ……

[0111] It should be noted that the embodiments of the present application only take the corresponding relationship between the service identifier and the power consumption shown in Table 1 as an example for description, and Table 1 does not limit the embodiments of the present application.

[0112] In the third possible mode, the management module obtains the power output by the power module and the remaining capacity of the energy storage module; if the power output by the power module is greater than the limited power of the power module, then according to the remaining capacity of the energy storage module and the second power, it is determined whether to start the linkage power supply function, the second power being the difference between the power output by the power module and the limited power of the power module.

[0113] It should be noted that the limited power of the power module can be set in advance, and the limited power of the power module can be equal to the rated power of the power module, or slightly less than the rated power of the power module, such as the limited power of the power module being 0.9 times the rated power of the power module.

[0114] In addition, as shown in Figure 4 the management module. The processor in the management module can accumulate all the output powers sent by the power modules to obtain the power output by the power modules.

[0115] Further, 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 used for power supply. The remaining capacity of the energy storage module can be obtained by detecting the working state and the remaining capacity of the energy storage element included in the energy storage module. For example, as shown in Figure 4 the management module. The processor in the management module can determine the normally working energy storage elements according to the working state of the energy storage elements sent by the energy storage module, and then accumulate the remaining capacities of all the normally working energy storage elements to obtain the remaining capacity of the energy storage module.

[0116] It should be noted that when the linkage power supply function has not been started, 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 capability of the power module, and therefore the management module can subtract the limited power of the power module from the power output by 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 capability of the power module. Then, the power 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 start the linkage power supply function.

[0117] The operation of determining whether to start the linkage power supply function according to the residual capacity of the energy storage module and the second power can be: if the value obtained by dividing the residual capacity of the energy storage module by the preset time length is greater than or equal to the second power, the management module starts the linkage power supply function; if the value obtained by dividing the residual capacity of the energy storage module by the preset time length is less than the second power, the management module does not start the linkage power supply function.

[0118] It should be noted that the preset time length can be set in advance. The maximum output power of the energy storage module can be obtained by dividing the residual capacity of the energy storage module by the preset time length. The maximum output power of the energy storage module is the maximum power that the energy storage module can output under the condition that at least the preset time length of power supply is required. Therefore, if the maximum output power of the energy storage module is greater than or equal to the second power, it indicates 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 module at this time, and the linkage power supply function can be started at this time. If the maximum output power of the energy storage module is less than the second power, it indicates that the energy storage module is insufficient to share the part of the power consumed by the load that exceeds the power supply capacity of the power module at this time, and the linkage power supply function can not be started at this time.

[0119] When the power module includes a power management system and a power source managed by the power management system, the power management system can be used to determine whether the linkage power supply function is started in step 301.

[0120] If the linkage power supply function is not started, the power module can perform the following step 302 to supply power to the load, and if the linkage power supply function has been started, the power module can perform the following steps 303-306 to supply power to the load.

[0121] Step 302: The power module controls the output voltage of the power module to be a preset voltage to supply power to the load by the power module and charge the energy storage module.

[0122] 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 at the charging end 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 at the charging end 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.

[0123] 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, and 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 ensured, but also the capacity of the energy storage module can be improved, facilitating subsequent use of the energy storage module to supply power to the load.

[0124] When the power module includes a power management system and a power supply managed by the power management system, the power module can control the output voltage of the power supply managed by the power management system to be the preset voltage in step 302.

[0125] It should be noted that the power module used in the embodiments of the present application can be selected from a power module whose rated power is close to the power consumed by the load when providing typical services, for example, a power module whose rated power is the power consumed by the load when providing typical services. In this case, since the load is providing typical services most of the time, the power consumed by the load most of the time is close to the rated power of the power module, so that not only the normal operation of the services can be ensured, but also compared with the scheme of selecting a power module whose rated power is close to the power consumed by the load when providing peak services in the related art, the power module in the embodiments of the present application can save a certain amount of power, which can be used for power supply of other devices, thereby improving the power utilization rate.

[0126] It should be noted that in actual applications, the linkage power supply function can be set to supply power to the load by steps 303-306 when the linkage power supply function is turned on, and the existing method (i.e., step 302) is used to supply power to the load when the linkage power supply function is not turned on, so that compatibility with the existing power supply method can be achieved.

[0127] Of course, the linkage power supply function can also not be set, but the load can always be supplied with power by steps 303-306. That is, steps 301 and 302 can not be performed, and the load can be directly supplied with power by steps 303-306, that is, during the service operation, the power module always selects whether to supply power to the load only by itself or to supply power to the load jointly by itself and the energy storage module according to the power consumption of the load.

[0128] Step 303: During the process of supplying power to the load by the power module, the power module determines the power output by the power module.

[0129] During the process of supplying power to the load by the power module, the power output by the power module is the power consumed by the load. In this way, it can be convenient to determine whether the power module and the energy storage module need to be jointly used to supply power to the load according to the power consumed by the load.

[0130] When the power module includes a power management system and a power supply managed by the power management system, the power management system can determine the power output by the power supply managed by the power management system in step 303.

[0131] It is worth noting that if a linked power supply function is provided in the embodiments of the present application, the power module can continuously determine the power output by the power module and transmit it to the management module so that the management module can determine whether the linked power supply function needs to be enabled. During the process of the power module supplying power to the load, that is, during the process of the power module's output voltage being higher than the set voltage of the energy storage module, if the linked power supply function is enabled, the power module can detect whether the power output by the power module has increased from below the power limit of the power module to above the power limit, so as to determine whether to adjust its own output voltage to jointly supply power with the energy storage module. The specific process is described below.

[0132] 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 be a preset voltage, so that the power module supplies power to the load and charges the energy storage module.

[0133] It should be noted that the power limit of the power module is close to the rated power of the power module. 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 the present application, the power consumed by the load most of the time is also close to the power limit of the power module, thereby ensuring the utilization of the power module.

[0134] In this case, the load consumes much more power during peak service periods than when providing typical services. Therefore, the load consumes more power during peak service periods than the power module's power limit. Since the load provides typical services most of the time and experiences peak service periods for a short period, the load consumes less power than the power module's power limit most of the time and more power than the power module's power limit for a short period.

[0135] In addition, if the power output by 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. The power module can then control its own output voltage to the preset voltage to continue to power the load and charge the energy storage module.

[0136] For example, Figure 5 As shown, the energy storage module includes a charging circuit, a discharging circuit, and an energy storage element. The set voltage of the energy storage element is lower than the preset voltage. For example, the set voltage of the energy storage element can be 52V, and the preset voltage can be 54.5V. The default output voltage of the power module is the preset voltage. Because the preset voltage is higher than the set voltage of the energy storage element, the energy storage module is in a charging state. During this time, the power module charges the energy storage element through the charging circuit and supplies power to the load.

[0137] When the power module includes n power management systems and each power management system manages a power supply, in step 304, the output voltage of the managed power supply can be maintained at the default voltage when any one of the n power management systems detects that the power output by the managed power supply is less than or equal to the first power.

[0138] It should be noted that the first power is obtained by dividing the limited power of the power module by n. Due to the load balancing characteristics of the power module, the powers output by the n power supplies in the power module are the same or similar, so if the power output by any one of the n power supplies is less than or equal to the first power, the power output by the power module should be less than or equal to the limited power of the power module, and thus the output voltage of the managed power supply can be controlled to be maintained at the default voltage to continue to supply power to the load and charge the energy storage module.

[0139] In step 305, if the power output by the power module increases from below the limited power of the power module to greater than the limited power of the power module, the power module controls the output voltage of the power module to be lower than the set voltage of the energy storage module to supply power to the load by the power module and the energy storage module.

[0140] During the process of supplying power to the load only by the power module, if the power consumed by the load increases to be greater than the limited power of the power module, the power output by the power module will also increase to be greater than the limited power of the power module in a short time to meet the needs of the load. When the power consumed by the load is greater than the limited power of the power module for a long time, if the load is still supplied with power only by the power module, power failure will occur due to insufficient power supply capability of the power module.

[0141] In the embodiments of the present application, if the power output by the power module increases from below the limited power of the power module to greater than the limited power of the power module, it indicates that the power consumed by the load changes from being within the power supply capability of the power module to exceeding the power supply capability of the power module, and thus the power module and the energy storage module can be combined to supply power to the load to ensure that the load will not be powered off and the normal operation of the load is ensured in the case that the power consumed by the load exceeds the power supply capability of the power module. In this way, when the power consumed by the load is too large due to a business peak, reliable power supply can be realized by the power module and the energy storage module, so that the business performance can be ensured to be unaffected even at the business peak. Moreover, in the embodiments of the present application, synchronous power supply of the energy storage module is also supported in the case of power supply by the power module, so that the utilization rate of the energy storage module can be improved.

[0142] 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 point, the energy storage module can automatically share the portion of the load power consumed that exceeds the power supply capacity of the power module. In other words, in this embodiment of the present application, by controlling the output voltage of the power module to be lower than the set voltage of the energy storage module, it is possible to ensure that the portion of the load power consumed that exceeds the power supply capacity of the power module is automatically provided by the energy storage module.

[0143] For example, Figure 5 As shown, the set voltage of the energy storage element is lower than the preset voltage. For example, the set voltage of the energy storage element can be 52V, and the preset voltage can be 54.5V. The default output voltage of the power module is the preset voltage. When the power output of the power module increases from below the power limit to above the power limit, the power module controls its output voltage to decrease until it falls below the set voltage of the energy storage element. At this point, because the output voltage of the power module is lower than the set voltage of the energy storage element, the energy storage module is in a discharging state. The energy storage element supplies power to the load through the discharge circuit, and the power module also supplies power to the load.

[0144] In which, when the power supply module includes n power management systems and power supplies managed by each power management system, step 305 may be that when any one of the n power management systems detects that the power output of the power supply it manages increases from below the first power to greater than the first power, the output voltage of the power supply managed by it is controlled to be lower than the set voltage of the energy storage module.

[0145] It should be noted that due to the load balancing characteristics of the power module, the n power supplies in the power module output the same or similar powers. Therefore, for any one of the n power supplies, if the power output by this power supply increases from below a first power to above the first power, the power output by the power module should increase from below the limited power of the power module to above the limited power. Therefore, at this time, the output voltage of the managed power supply can be controlled to be lower than the set voltage of the energy storage module, so that the energy storage module is in a discharging state.

[0146] Furthermore, to ensure power supply reliability, when the power output of the power module increases from below the power limit to above the power limit, and before the power module controls its own output voltage to fall below the set voltage of the energy storage module, the power module may also send a third indication to the management module, indicating that it will begin to jointly supply power with the power module and the energy storage module. At this point, the management module may determine a power capping value based on the remaining capacity of the energy storage module and the power limit of the power module. Thereafter, while the power module controls its own output voltage to fall below the set voltage of the energy storage module, that is, while the power module and the energy storage module are supplying power to the load, the management module may limit the power consumed by the load according to this power capping value.

[0147] It should be noted that, in the process of the power module and the energy storage module supplying power for the load, the total power output by the power module and the energy storage module is the power consumed by the load.

[0148] In addition, when the management module limits the power consumed by the load according to the power cap value, the power cap operation can be performed when the total power output by the power module and the energy storage module is greater than the power cap value. The power cap operation refers to a technology for setting an upper limit of power consumption for the load. The power cap operation is used to limit the power consumed by the load to be below the power cap value. In this way, power supply safety can be ensured, and system power failure can be avoided.

[0149] It should be noted that, in the process of the power module and the energy storage module supplying power for the load, the total power output by the power module and the energy storage module is the power consumed by the load.

[0150] In the process of determining the power cap value according to the remaining capacity of the energy storage module and the limited power of the power module, the maximum output power of the energy storage module can be obtained first, and the maximum output power of the energy storage module is obtained by dividing the remaining capacity of the energy storage module by a preset time length; the maximum output power of the energy storage module and the limited power of the power module are added to obtain the power cap value.

[0151] It should be noted that, after dividing the remaining capacity of the energy storage module by the preset time length, 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 in the case of at least needing to supply power for the preset time length. Therefore, by adding the maximum output power of the energy storage module and the limited power of the power module, the maximum power that the energy storage module and the power module can output jointly can be obtained, which is used as the power cap value.

[0152] Further, after step 305, that is, after the power module controls the output voltage of the power module to be lower than the set voltage of the energy storage module, the following step 306 can be performed.

[0153] Step 306: If the power output by the power module is reduced from above the limited power of the power module to less than the limited power, the power module controls the output voltage of the power module to be higher than the set voltage of the energy storage module, so as to supply power for the load by the power module and charge the energy storage module.

[0154] If the power output of the power module drops from above the power limit to below it, it indicates that the load's power consumption has likely now fallen within the power module's supply capacity, rather than exceeding it. The power module can then power the load and charge the energy storage module. This ensures normal load power supply and increases the capacity of the energy storage module, facilitating its subsequent use.

[0155] It should be noted that when the output voltage controlled by the power module is higher than the set voltage of the energy storage module, the power module can restore its own default output voltage, that is, restore its own output voltage to the preset voltage.

[0156] 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.

[0157] For example, Figure 5 As shown, the set voltage of the energy storage element is lower 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 power output of the power module drops from above the power limit of the power module to below 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 restore its own output voltage to the preset voltage. At this time, since the output voltage of the power module is higher 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.

[0158] In which, when the power supply module includes n power management systems and power supplies managed by each power management system, step 306 may be when any one of the n power management systems detects that the power output of the power supply it manages drops from above the first power to below the first power, controlling the output voltage of the managed power supply to be higher than the set voltage of the energy storage module.

[0159] It should be noted that due to the load balancing characteristics of the power module, the n power supplies in the power module output the same or similar powers. Therefore, for any one of the n power supplies, if the power output by this power supply drops from above the first power to below the first power, the power output by the power module should be reduced from above the limited power of the power module to below the limited power. Therefore, at this time, the output voltage of the managed power supply can be controlled to be higher than the set voltage of the energy storage module to recharge the energy storage module and supply power to the load.

[0160] It is worth noting that, in the process of supplying power to the load, if the power module is powered off, 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 power supply to the load is directly from the energy storage module, thereby ensuring the reliability of the power supply. 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. At this time, the energy storage element supplies power to the load through the discharging circuit.

[0161] For ease of understanding, the power supply method provided by the embodiments of the present application will be exemplarily described below in conjunction with Figure 6 . Figure 6 is a power-time curve diagram provided by an embodiment of the present application, which is used to show the trend of the power consumed by the load over time.

[0162] 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 module. The power interval between the limited power of the power module and the power cap value is the joint power supply interval of the power module and the energy storage module.

[0163] Specifically, when the power consumed by the load is less than or equal to the limited power of the power module, the power module supplies power to the load, that is, before the a1 time, between the a2 time and the a3 time, between the a4 time and the a5 time, and after the a6 time in Figure 6 , the power module alone 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, between the a1 time and the a2 time, between the a3 time and the a4 time, and between the a5 time and the a6 time in Figure 6 , the power module and the energy storage module jointly supply power to the load.

[0164] In the power-time curve diagram shown in Figure 6 , the shaded areas shown in the diagram are 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 the time period corresponding to each shaded area. It can be seen that, between the a5 time and the a6 time, the energy storage module outputs the most amount of electricity.

[0165] In the embodiments of the present application, in the process of supplying power to the load by the power module, the power output by the power module is determined. Then, if the power output by the power module rises from below the limited power of the power module to greater than the limited power, the output voltage of the power module is controlled to be lower than the set voltage of the energy storage module, so as to supply power to the load by the power module and the energy storage module, thereby ensuring 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 achieved by the power module and the energy storage module jointly, thereby ensuring that the business performance is not affected even at the business peak.

[0166] Figure 7 is a schematic diagram of a power supply system provided by an embodiment of the present application. Referring to Figure 7 , the system comprises a power module 701 and an energy storage module 702, an output end of the power module 701 is connected with a charging end of the energy storage module 702, the output end of the power module 701 and a discharging end of the energy storage module 702 are both connected with a load, and the power module 701 is connected with commercial power.

[0167] The power module 701 is configured to determine the power output by the power module 701 in a process in which the power module 701 supplies power to the load.

[0168] The power module 701 is further configured to control the output voltage of the power module 701 to be lower than the set voltage of the energy storage module 702 when the power output by the power module 701 increases from below the limited power of the power module 701 to greater than the limited power, so as to supply power to the load by the power module 701 and the energy storage module 702.

[0169] Optionally, the power module 701 is further configured to:

[0170] control the output voltage of the power module 701 to be lower than the set voltage of the energy storage module 702 when the power output by the power module 701 increases from below the limited power of the power module 701 to greater than the limited power, and the linkage power supply function has been started.

[0171] Optionally, referring to Figure 8 , the system further comprises a management module 703, one transmission end of the management module 703 is connected with a transmission end of the power module 701, and another transmission end of the management module 703 is connected with a transmission end of the energy storage module 702.

[0172] The management module 703 is configured to predict the power consumed by the load in a next time period, and start the linkage power supply function when the predicted power is greater than the limited power of the power module 701; or, according to the remaining capacity of the energy storage module 702 and a second power, determine whether to start the linkage power supply function when the power output by the power module 701 is greater than the limited power of the power module 701, the second power being a difference between the power output by the power module 701 and the limited power of the power module 701.

[0173] The management module 703 is further configured to send first indication information to the power module 701 when the linkage power supply function has been started.

[0174] The power module 701 is further configured to determine that the linkage power supply function has been started when the first indication information sent by the management module 703 is received.

[0175] Optionally, the power module 701 comprises n power management systems and n power supplies, the n power management systems correspond to the n power supplies one by one, each of the n power management systems is configured to manage a corresponding power supply, and n is an integer greater than or equal to 2.

[0176] Each of the n power management systems is configured to control the output voltage of the managed power supply to be lower than the set voltage of the energy storage module 702 when the power output by the managed power supply increases from below a first power to greater than the first power, the first power being the defined power of the power module 701 divided by n.

[0177] Optionally, the power module 701 is further configured to:

[0178] control the output voltage of the power module 701 to be higher than the set voltage of the energy storage module 702 when the power output by the power module 701 decreases from above the defined power to less than the defined power, so as to supply power to the load by the power module 701 and charge the energy storage module 702.

[0179] Optionally, referring to Figure 8 The system further comprises a management module 703, one transmission end of the management module 703 is connected to the transmission end of the power module 701, and the other transmission end of the management module 703 is connected to the transmission end of the energy storage module 702.

[0180] 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 increases from below the defined power of the power module 701 to greater than the defined power.

[0181] The management module 703 is configured to determine a power cap value according to the remaining capacity of the energy storage module 702 and the defined power of the power module 701 when the third indication information sent by the power module 701 is received, and limit the power consumed by the load according to the power cap value.

[0182] In the embodiments of the present application, the power output by the power module is determined during the process of supplying power to the load by the power module. Then, if the power output by the power module increases from below the defined power of the power module to greater than the defined power, the output voltage of the power module is controlled to be lower than the set voltage of the energy storage module, so as to supply power to the load by the power module and the energy storage 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 value, reliable power supply can be realized by the power module and the energy storage module in combination, so that the business performance can be ensured not to be affected even at the business peak value.

[0183] It should be noted that the above power supply system embodiment and the power supply method embodiment are of the same concept, and the specific implementation process of the operations performed by the power module 701, the energy storage module 702 and the management module 703 can refer to the above Figure 3 The power supply method embodiment shown is not described in detail here.

[0184] Figure 9 This is a schematic diagram of the structure of a power supply device provided in an embodiment of the present application. The power supply device may be Figure 1 The power module 101 shown in FIG. 1 may also be Figure 3 The power module described in the embodiment can also be Figure 7 The power module 701 described in the embodiment. Figure 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.

[0185] The interface card 9011 is used to implement the docking function with other devices. External data can enter the interface card 9011 and be transmitted to the processor 9012. The data processed by the processor 9012 can be sent out from the interface card 9011.

[0186] The processor 9012 may be a microprocessor (including a central processing unit (CPU), etc.), an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

[0187] The memory 9013 may be a read-only memory (ROM), a random access memory (RAM), an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0188] 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 implement the above solution through the processor 9012 and the program code 910 in the memory 9013.Figure 3 Operations performed by the power module in the embodiment.

[0189] Figure 10 This is a schematic diagram of the structure of a management device provided in an embodiment of the present application. The management device may be Figure 1 The management module 103 shown in FIG can also be Figure 3 The management module described in the embodiment can also be Figure 7 The management module 703 described in the embodiment. The management device can be implemented in the form of a single board. Figure 10 , the management device may include an interface card 1001 , a processor 1002 and a memory 1003 .

[0190] The interface card 1001 is used to implement a docking function with other devices. External data can enter the interface card 1001 and be transmitted to the processor 1002 . The data processed by the processor 1002 can be sent out from the interface card 1001 .

[0191] 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 the program of the present application.

[0192] The memory 1003 may be, but is not limited to, ROM, RAM, EEPROM, disk storage media or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0193] 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 above solution through the processor 1002 and the program code 1010 in the memory 1003. Figure 3 Operations performed by a management module in an embodiment.

[0194] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network or other programmable apparatus. The computer instructions can 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 can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (for example: coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example: infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium accessible by a computer, or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be a magnetic medium (for example: floppy disk, hard disk, magnetic tape), an optical medium (for example: digital versatile disc (DVD)) or a semiconductor medium (for example: solid state disk (SSD)) and the like.

[0195] The above is an embodiment provided by the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power supply method characterized by, The application is applied to a system including a power module, an energy storage module, a management module and a load, an output end of the power module is connected with a charging end of the energy storage module, the output end of the power module and a discharging end of the energy storage module are connected with the load, the power module is connected with a commercial power supply, the load includes a server, the management module is connected with the power module and the energy storage module, the management module is used for starting and / or shutting down a linkage power supply function, and the method includes the following steps. In the process that the power module supplies power for the load, the power output by the power module is determined; If the linkage power supply function has been started and the power output by the power module increases from below a limited power of the power module to more than the limited power, the output voltage of the power module is controlled to be lower than the setting voltage of the energy storage module, so as to supply power for the load by the power module and the energy storage module; when the power output by the power module decreases from above the limited power to less than the limited power, the output voltage of the power module is controlled to be higher than the setting voltage of the energy storage module, so as to supply power for the load by the power module and charge the energy storage module by the power module; Wherein, whether the linkage power supply function is started is determined according to the residual capacity of the energy storage module and a second power, the second power is the difference between the power output by the power module and the limited power of the power module; if the residual capacity of the energy storage module divided by a preset time length is greater than or equal to the second power, the linkage power supply function is started; or whether the linkage power supply function is started is determined according to the power consumed by the load in the next time period; if the predicted power is greater than the limited power of the power module, the linkage power supply function is started.

2. The method of claim 1, wherein, The method further includes the following steps. If the first indication information sent by the management module is received, it is determined that the linkage power supply function has been started, one transmission end of the management module is connected with the transmission end of the power module, and the other transmission end of the management module is connected with the transmission end of the energy storage module; Wherein, the first indication information is sent by the management module when the starting instruction is received, the starting instruction is used for indicating to start the linkage power supply function, and the starting instruction is input to the management module by a technical person through a clicking operation, a voice operation, a gesture operation or a somatosensory operation.

3. The method of any of claims 1-2, wherein, The power module includes n power management systems and n power supplies, the n power management systems correspond to the n power supplies one by one, each power management system in the n power management systems is used for managing the corresponding power supply, and n is an integer greater than or equal to 2; If the power output by the power module increases from below the limited power of the power module to more than the limited power, the output voltage of the power module is controlled to be lower than the setting voltage of the energy storage module, including: If the power output by any one of the n power supplies increases from below a first power to greater than the first power, the output voltage of the one power supply is controlled to be lower than the set voltage of the energy storage module, and the first power is the limit power of the power supply module divided by n.

4. The method of claim 1, wherein, The method further comprises: If the power output by the power supply module increases from below the limit power of the power supply module to greater than the limit power, third indication information is sent to a management module, the management module determines a power cap value according to the remaining capacity of the energy storage module and the limit power of the power supply module, and the power consumed by the load is limited according to the power cap value, one transmission end of the management module is connected with the transmission end of the power supply module, and another transmission end of the management module is connected with the transmission end of the energy storage module.

5. A power supply system characterized by comprising: The system comprises a power supply module, a management module and an energy storage module, the output end of the power supply module is connected with the charging end of the energy storage module, the output end of the power supply module and the discharging end of the energy storage module are both connected with a load, and the power supply module is connected with a power grid; the load comprises a server; the management module is in communication connection with the power supply module and the energy storage module, and the management module is used for starting and / or shutting down a linkage power supply function; The power supply module is used for determining the power output by the power supply module in the process of supplying power to the load. The power supply module is further used for, when the linkage power supply function has been started and the power output by the power supply module increases from below the limit power of the power supply module to greater than the limit power, controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module, so as to supply power to the load by the power supply module and the energy storage module; and when the power output by the power supply module decreases from above the limit power to less than the limit power, controlling the output voltage of the power supply module to be higher than the set voltage of the energy storage module, so as to supply power to the load by the power supply module and charge the energy storage module by the power supply module. The linkage power supply function is started according to the remaining capacity of the energy storage module and a second power, the second power is the difference between the power output by the power supply module and the limit power of the power supply module, and the linkage power supply function is started when the value obtained by dividing the remaining capacity of the energy storage module by a preset time length is greater than or equal to the second power; or the linkage power supply function is started according to the power predicted to be consumed by the load in the next time period, and the linkage power supply function is started when the predicted power is greater than the limit power of the power supply module.

6. The system of claim 5, wherein, The system further comprises a management module, one transmission end of the management module is connected with the transmission end of the power supply module, and another transmission end of the management module is connected with the transmission end of the energy storage module. The management module is configured to start the linkage power supply function when receiving a starting instruction, the starting instruction is used to instruct to start the linkage power supply function, and the starting instruction is input to the management module by a technician through a clicking operation, a voice operation, a gesture operation, or a somatosensory operation. The management module is further configured to send first indication information to the power module when the linkage power supply function has been started. The power module is further configured to determine that the linkage power supply function has been started when receiving the first indication information sent by the management module.

7. The system of any of claims 5-6, wherein, The power module includes n power management systems and n power supplies, the n power management systems correspond to the n power supplies one by one, each power management system in the n power management systems is configured to manage a corresponding power supply, and n is an integer greater than or equal to 2. Each power management system in the n power management systems is configured to control the output voltage of the managed power supply to be lower than the set voltage of the energy storage module when the power output by the managed power supply is increased from below a first power to greater than the first power, and the first power is the limited power of the power module divided by n.

8. The system of claim 5, wherein, The system further includes a management module, one transmission end of the management module is connected with the transmission end of the power module, and the other transmission end of the management module is connected with the transmission end of the energy storage module. The power module is configured to send third indication information to the management module when the power output by the power module is increased from below the limited power of the power 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 module when receiving the third indication information sent by the power module, and limit the power consumed by the load according to the power cap value.

9. A power supply device characterized by comprising: The power supply device includes a power management system and a power supply, and the power management system is configured to manage the power supply. The power management system includes an interface card, a processor, and a memory; the processor transmits or receives data through the interface card; the memory is used to store programs supporting the power management system to execute the method in any one of claims 1-4, and store data involved in the method in any one of claims 1-4; and the processor is configured to execute the programs stored in the memory.

10. A computer readable storage medium, the computer readable storage medium stores instructions, the instructions are loaded and executed by a processor to execute the method in any one of claims 1-4.

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