WO2021175215A1 - 供电方法、***、电源设备和存储介质 - Google Patents
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- WO2021175215A1 WO2021175215A1 PCT/CN2021/078702 CN2021078702W WO2021175215A1 WO 2021175215 A1 WO2021175215 A1 WO 2021175215A1 CN 2021078702 W CN2021078702 W CN 2021078702W WO 2021175215 A1 WO2021175215 A1 WO 2021175215A1
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- power
- module
- power supply
- energy storage
- supply module
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
Definitions
- This application relates to the field of electronic technology, and in particular to a power supply method, system, power supply device and storage medium.
- Power supply reliability plays a vital role in maintaining the normal operation of electronic equipment.
- the cabinet in the computer room it generally includes the power supply and the load.
- the power supply is connected to the mains and can supply power to the load.
- the load includes servers, switches, etc., which can provide corresponding services.
- the rated power of the power supply is generally configured according to the power consumed by the load when providing typical services. In this case, when the service peak occurs, it is easy to cause insufficient power supply due to excessive power consumption by the load, resulting in power failure.
- a power capping mechanism is added. Specifically, when the power consumed by the load is greater than the rated power of the power supply, a power capping operation is performed to limit the power consumed by the load below the rated power of the power supply to ensure that no power is lost. However, since the power is limited at the peak of the service, it will affect the performance of the service.
- This application provides a power supply method, system, power supply device, storage medium, and program product, which can ensure that business performance is not affected when the business peaks.
- the technical solution is as follows:
- a power supply method is provided, which is applied to a system including a power supply module, an energy storage module, and a load.
- the output end of the power supply module is connected to the charging end of the energy storage module, and the output end of the power supply module is discharged from the energy storage module. Both ends are connected to the load, and the power module is connected to the mains.
- the power output by the power module is determined. If the output power of the power module rises from below the limited power of the power module to greater than the limited power, the output voltage of the control power module is lower than the set voltage of the energy storage module, and the power module and the energy storage module supply power to the load.
- the mains power is industrial frequency alternating current, which is the power resource extracted from the power pipe network, and the mains power is generally provided by the power company.
- the limited power of the power supply module can be set in advance, and the limited power of the power supply module can be equal to the rated power of the power supply module, or slightly less than the rated power of the power supply module.
- the limited power of the power supply module can be the rated power of the power supply module. 0.9 times and so on.
- the rated power of the power module refers to the effective power that the power module can continuously output, that is, the maximum power that the power module can continue to work normally.
- the energy storage module when the output voltage of the power module is lower than the set voltage of the energy storage module, the energy storage module is in a discharging state. At this time, the energy storage module can automatically share the power consumed by the load that exceeds the power supply capacity of the power module. That is to say, by controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module in the embodiment of the present application, it can be ensured that the part of the power consumed by the load that exceeds the power supply capacity of the power supply module is automatically provided by the energy storage module.
- the power supply module and the energy storage module are combined to achieve reliable power supply, so as to ensure that business performance is not affected even when the business peaks.
- the synchronous power supply of the energy storage module is also supported, so that the utilization rate of the energy storage module can be improved.
- the above steps may be executed by a power module, and specifically may be executed by a power management system in the power module.
- the above steps may also be executed by other separately set modules, for example, a separate management module may be set in the system for execution.
- a suitable executive body can be selected according to requirements, which is not limited in this application.
- a linked power supply function can be set.
- the linked power supply function refers to a function that can combine the power supply module and the energy storage module to supply power to the load.
- the set voltage of the energy storage module is the voltage at which the energy storage module can maintain a constant and stable output. If the voltage of the charging terminal of the energy storage module is greater than the set voltage of the energy storage module, the energy storage module is in a charging state; if the voltage of the charging terminal of the energy storage module is less than the set voltage of the energy storage module, the energy storage module is in a discharging state.
- the power supply module may determine that the linked power supply function has been turned on when receiving the first indication information sent by the management module. After the power module determines that the linkage power supply function is enabled, the power module can control the output voltage of the power module to be lower than the set voltage of the energy storage module when the output power of the power module rises from below the limited power of the power module to greater than the limited power. At this time, one transmission end of the management module can be connected to the transmission end of the power supply module, and the other transmission end of the management module can be connected to the transmission end of the energy storage module.
- the first indication information may be sent by the management module when it predicts that the power consumed by the load in the next time period is greater than the limited power of the power supply module.
- the management module predicts that the power consumed by the load in the next time period is greater than the limited power of the power supply module, it indicates that the power consumed by the load is likely to exceed the power supply capacity of the power supply module, so the linkage power supply can be turned on at this time Function so that the power module and energy storage module can be combined to supply power to the load in the future.
- the operation of the management module to predict the power consumed by the load in the next time period may be: predict the power consumed by the load in the next time period through the power consumption relationship of the load according to the time range of the next time period; or, according to The time range of the next time period is to predict the business that the load will run in the next time period through the business operation relationship of the load, and predict the power consumed by the load in the next time period based on the predicted business.
- the power consumption relationship of the load is obtained by analyzing the power consumed by the load in various time periods in the past. That is, it is possible to establish a correlation database between the time period and the power consumed by the load, and then use the learning algorithm to establish the power consumption relationship of the load based on the correlation database, and the power consumption relationship can predict the power consumed by the load in different time periods.
- the power consumption relationship may be a functional relationship or a neural network model.
- the business operation relationship of the load is obtained by analyzing the business that the load has run in various time periods in the past. That is, it is possible to establish an associated database between the time period and the load running business, and then based on this associated database, through the learning algorithm to establish the load business running relationship, the business running relationship can predict the load running business in different time periods.
- the business operation relationship can be a functional relationship or a neural network model.
- the first indication information may be sent by the management module when the power output by the power module is greater than the limited power of the power module, and the linkage power supply function is determined to be enabled according to the remaining capacity of the energy storage module and the second power, and the second Power is the difference between the power output by the power module and the limited power of the power module.
- the management module determines whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power: if the remaining capacity of the energy storage module divided by the preset duration, the value obtained is greater than or equal to the second Power, the linkage power supply function is turned on.
- the power output by the power module is the power consumed by the load. If the power output by the power module is greater than the limited power of the power module, it indicates that the power consumed by the load has exceeded the power supply capacity of the power module. Therefore, at this time, the power output by the power module can be subtracted from the limited power of the power module to obtain the second power.
- the second power is the part of the power consumed by the load that exceeds the power supply capacity of the power supply module.
- the maximum output power of the energy storage module After dividing the remaining capacity of the energy storage module by the preset duration, the maximum output power of the energy storage module can be obtained.
- the maximum output power of the energy storage module is the maximum power that the energy storage module can output when the power supply for at least a preset duration is required. Therefore, if the maximum output power of the energy storage module is greater than or equal to the second power, it means that the energy storage module is sufficient to share the part of the power consumed by the load that exceeds the power supply capacity of the power supply module, and the linkage power supply function can be activated at this time.
- the management module itself can enable the linkage power supply function. After the management module turns on the linkage power supply function, when the output power of the power module rises from below the limited power of the power module to greater than the limited power, the output voltage of the control power module is lower than the set voltage of the energy storage module.
- the management module can predict the power consumed by the load in the next time period; when the predicted power is greater than the limited power of the power supply module, the linkage power supply function is turned on.
- the management module may determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power when the power output by the power supply module is greater than the limited power of the power supply module.
- the power supply module includes n power management systems and n power supplies.
- the n power management systems correspond to the n power supplies one-to-one, and each of the n power management systems is used for management.
- n is an integer greater than or equal to 2; if the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, the operation of controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module is OK
- the output power of this power supply rises from below the first power to greater than the first power, the output voltage of this power supply is controlled to be lower than the set voltage of the energy storage module, and the first power is The limited power of the power module is divided by n to get.
- the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the power output by this power supply is the first If the power is lower than the first power, the output power of the power module should be increased from the power module's limited power to more than the limited power, so the output voltage of this power supply can be controlled to be lower than the setting of the energy storage module at this time. Voltage to make the energy storage module in a discharged state.
- the output voltage of the power supply module after controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module, if the output power of the power supply module drops from above the limited power to less than the limited power, the output voltage of the power supply module can also be controlled Higher than the set voltage of the energy storage module, the power module supplies power to the load and charges the energy storage module.
- the power module can supply power to the load and charge the energy storage module. In this way, not only can the normal power supply to the load be guaranteed, but also the capacity of the energy storage module can be increased, which facilitates the subsequent use of the energy storage module to supply power to the load.
- the power supply module can control the output voltage of the power supply module to be lower than the set voltage of the energy storage module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power.
- the power module may also send third indication information to the management module, and the management module determines the power cap value according to the remaining capacity of the energy storage module and the limited power of the power module, and limits the power consumed by the load according to the power cap value.
- the management module can control the output voltage of the power supply module to be lower than the set voltage of the energy storage module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power.
- the management module can also determine the power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module, and limit the power consumed by the load according to the power cap value.
- the management module can combine the power supply capabilities of the energy storage module and the power supply module to set the power cap value during the process when the power supply module and the energy storage module supply power to the load.
- this application can improve the power supply capability of the system, so that the system can run over frequency, and ensure that business performance is not affected.
- the management module determines the power cap value based on the remaining capacity of the energy storage module and the limited power of the power supply module.
- the operation of determining the power cap value may be: dividing the remaining capacity of the energy storage module by the preset period of time and the value obtained by the power module is limited. Add the power to get the power cap value.
- the maximum output power of the energy storage module can be obtained by dividing the remaining capacity of the energy storage module by the preset duration.
- the maximum output power of the energy storage module is the maximum power that the energy storage module can output when the power supply for at least a preset duration is required. Therefore, by adding the maximum output power of the energy storage module and the limited power of the power supply module, the maximum power that can be output by the combination of the energy storage module and the power supply module can be obtained, which is used as the power cap value.
- a power supply system in a second aspect, includes a power supply module and an energy storage module.
- the output end of the power supply module is connected to the charging end of the energy storage module.
- the discharge ends of the energy storage module are all connected to the load, and the power supply module is connected to the mains;
- the power supply module is configured to determine the power output by the power supply module when the power supply module supplies power to the load;
- the power supply module is further configured to control the output voltage of the power supply module to be lower than that of the energy storage module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power.
- the voltage is set so that the power supply module and the energy storage module supply power to the load.
- the power supply module is also used for:
- the system further includes a management module, one transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the energy storage module;
- the management module is used to predict the power consumed by the load in the next time period, and when the predicted power is greater than the limited power of the power supply module, turn on the linkage power supply function; or When the output power of the module is greater than the limited power of the power supply module, determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power, where the second power is the power output by the power supply module The difference with the limited power of the power supply module;
- the management module is further configured to send first indication information to the power supply module when the linkage power supply function has been turned on;
- the power supply module is further configured to determine that the linkage power supply function is turned on when the first instruction information sent by the management module is received.
- the power supply module includes n power management systems and n power supplies, and the n power management systems have a one-to-one correspondence with the n power supplies, and each power management system of the n power management systems For managing the corresponding power supply, the n is an integer greater than or equal to 2;
- Each of the n power management systems is configured to control the output voltage of the managed power supply to be lower than when the power output by the managed power supply rises from below the first power to greater than the first power
- the first power is obtained by dividing the limited power of the power supply module by n.
- the power supply module is also used for:
- the output voltage of the power supply module is controlled to be higher than the setting voltage of the energy storage module, so that the power supply module is The load supplies power and charges the energy storage module.
- the system further includes a management module, one transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the energy storage module;
- the power supply module is configured to send third indication information to the management module when the power output by the power supply module rises from below the limited power of the power supply module to greater than the limited power;
- the management module is configured to determine a power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module when receiving the third indication information sent by the power supply module, and to cap the power according to the power The value limits the power consumed by the load.
- a power supply device in a third aspect, includes a power management system and a power supply, the power management system is used to manage power; the power management system includes an interface card, a processor, and a memory; the processor Send data or receive data through the interface card; the memory is used to store a program that supports the power management system to execute the power supply method provided in the first aspect above, and to store the power supply method used to implement the power supply method in the first aspect above The data involved.
- the processor is configured to execute a program stored in the memory.
- a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, and the instructions are loaded by a processor and execute the power supply method described in the first aspect.
- a computer program product containing instructions is provided, and the instructions are loaded by a processor and execute the power supply method described in the first aspect.
- Fig. 1 is a schematic diagram of a system provided by an embodiment of the present application.
- FIG. 2 is a schematic diagram of a cabinet-level system provided by an embodiment of the present application.
- FIG. 3 is a flowchart of a power supply method provided by an embodiment of the present application.
- Figure 4 is a schematic diagram of another system provided by an embodiment of the present application.
- FIG. 5 is a schematic diagram of another system provided by an embodiment of the present application.
- FIG. 6 is a power-time curve diagram provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of a power supply system provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of another power supply system provided by an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of a power supply device provided by an embodiment of the present application.
- FIG. 10 is a schematic structural diagram of a management device provided by an embodiment of the present application.
- Fig. 1 is a schematic diagram of a system involved in an embodiment of the present application.
- the system includes: a power supply module 101, an energy storage module 102, a management module 103 and a load 104.
- the power supply module 101 is connected to the mains power, which is a power frequency alternating current, which is a power resource extracted from the power pipe network.
- the utility power may be electric energy provided by a power company.
- the output terminal of the power module 101 is connected to the charging terminal of the energy storage module 102, and the output terminal of the power module 101 and the discharging terminal of the energy storage module 102 are both connected to the load 104.
- One transmission end of the management module 103 is connected to the transmission end of the power supply module 101, and the other transmission end of the management module 103 is connected to the transmission end of the energy storage module 102.
- the output end of the power supply module 101 and the discharge end of the energy storage module 102 may both be connected to the load 104 through a busbar.
- the bus bar is a conductive material and is a copper bar or aluminum bar connected between the main switch and each branch switch.
- the master switch is a switch connecting the output terminal of the power supply module 101 and the charging terminal of the energy storage module 102 to the busbar.
- the power supply module 101 and the energy storage module 102 can control the power supply to the busbar through the master switch.
- the shunt switch refers to a switch connected between the busbar and the load 104, and the power supply from the busbar to the load 104 can be controlled by the shunt switch.
- the power supply module 101 can convert the AC power of the city power into DC low-voltage power and provide it to the load 104. For example, it can convert 220V (Volt) AC power to 48V DC power and provide it to the load 104.
- the power module 101 can also charge the energy storage module 102.
- the energy storage module 102 can also supply power to the load 104.
- the management module 103 can monitor the operation of the power supply module 101 and the energy storage module 102, specifically it can monitor the power output by the power supply module 101, the power output by the energy storage module 102, the remaining capacity of the energy storage module 102, etc., and determine whether to turn on accordingly.
- the linked power supply function, the linked power supply function refers to a function capable of combining the power supply module 101 and the energy storage module 102 to supply power to the load 104.
- the system can be a cabinet-level system as shown in FIG. 2.
- the power supply module 101, the energy storage module 102, the management module 103, and the load 104 are all located in the cabinet.
- the cabinet may also include a power supply frame, and the power supply frame includes a power supply slot and a single board slot.
- the power module 101 includes three power supplies, which are located in a power supply slot of the power supply frame.
- the energy storage module 102 may be a battery backup unit (BBU), including three batteries.
- the management module 103 may be a single board, and is located in a single board slot in the power frame.
- the management module 103 may be a remote management controller (RMC) board.
- the management module 103 and the power supply module 101 may communicate through a controller area network (CAN) interface, and the management module 103 and the energy storage module 102 may also communicate through a CAN interface.
- the load 104 may include servers and switches.
- system can also be any system having a power supply module 101 and an energy storage module 102, which is not limited in the embodiment of the present application.
- Fig. 3 is a flowchart of a power supply method provided by an embodiment of the present application. This method can be applied to the system shown in Figure 1. Referring to Figure 3, the method may include the following steps:
- Step 301 The power supply module judges whether the linkage power supply function is turned on.
- the linkage power supply function refers to the function that can combine the power supply module and the energy storage module to supply power to the load. That is, when the linkage power supply function is turned on, the power supply module and the energy storage module can supply power to the load at the same time; when the linkage power supply function is not turned on, only the power module can supply power to the load. In addition, the power supply module can also charge the energy storage module when the linkage power supply function is not turned on.
- the power module can be connected to the mains, and the power module can convert the AC of the mains into DC low-voltage, for example, it can convert 220V AC into 48V DC.
- the energy storage module is a device used to store electrical energy. The energy storage module can supply power to the load when the power module is powered off.
- the energy storage module can be a battery, a super capacitor, etc.
- the load is a device that consumes electric energy, for example, the load may be a switch, a server, etc., which is not limited in the embodiment of the present application.
- the linkage power supply function can be activated by the management module in various ways.
- the management module may send the first indication information to the power supply module when the linked power supply function is turned on to indicate that the linked power supply function has been turned on.
- the management module may send second indication information to the power supply module to indicate that the linked power supply function has been turned off. That is, the power supply module may determine that the linked power supply function is turned on when receiving the first indication information, and may determine that the linked power supply function is not turned on when receiving the second indication information.
- the linked power supply function can be manually turned on by a technician, or it can be turned on automatically by the management module.
- the management module can enable the linkage power supply function in the following three possible ways.
- the management module turns on the linked power supply function when receiving the turn-on instruction.
- the management module After the management module turns on the linkage power supply function, it can turn off the linkage power supply function when it receives a shutdown instruction.
- the on command is used to turn on the linked power supply function
- the off command is used to turn off the linked power supply function.
- Both the opening instruction and the closing instruction can be input into the management module by a technician.
- the technician can trigger the opening instruction or the closing instruction on the management module through operations such as click operations, voice operations, gesture operations, and somatosensory operations.
- the management module may display a control interface, and the control interface may include control buttons.
- the technician can trigger the opening instruction by clicking the control button. After receiving the opening instruction, the management module can turn on the linkage power supply function. Moreover, after the management module turns on the linkage power supply function, the technician can also trigger a shutdown instruction by clicking the control button, and the management module can turn off the linkage power supply function after receiving the shutdown instruction.
- the management module predicts the power consumed by the load in the next time period; if the predicted power is greater than the limited power of the power supply module, the linkage power supply function is turned on.
- the management module does not enable the linkage power supply function.
- the management module can obtain the power consumed by the load in the current time period after the linkage power supply function is turned on. If the power consumed by the load in the current time period is less than or equal to the limited power of the power supply module, and the management module predicts that the load will be the next When the power consumed in the time period is less than or equal to the limited power of the power supply module, the management module closes the linkage power supply function.
- the duration of the time period can be set in advance.
- the duration of the time period can be set to 10 minutes, that is, every 10 minutes is a time period.
- the limited power of the power supply module can be set in advance, and the limited power of the power supply module can be the maximum power that the power supply module can output.
- the limited power of the power module can be equal to or slightly less than the rated power of the power module.
- the limited power of the power module can be 0.9 times the rated power of the power module.
- the rated power of the power module refers to the effective power that the power module can continuously output, that is, the maximum power that the power module can continue to work normally.
- the management module can turn on the linkage power supply at this time. Function so that the power module and energy storage module can be combined to supply power to the load in the future.
- the management module predicts that the power consumed by the load in the next time period is less than or equal to the limited power of the power supply module, it indicates that the power consumed by the load will most likely not exceed the power supply capacity of the power supply module for a period of time in the future, so the management at this time The module does not need to enable the linkage power supply function, and the power module continues to supply power to the load.
- the management module turns on the linkage power supply function, the power consumed by the load in the current time period is less than or equal to the limited power of the power supply module, and the management module predicts that the power consumed by the load in the next time period is less than or equal to the limited power of the power supply module , It indicates that not only the power consumed by the load at the current time does not exceed the power supply capacity of the power supply module, but also the power consumed in the future will probably not exceed the power supply capacity of the power supply module. Therefore, the management module can turn off the linkage power supply at this time. Function, so that only the power module will supply power to the load.
- the power consumed by the load in the current time period is the power output by the power module in the current time period.
- 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.
- the management module is used to turn on or turn off the linkage power supply function.
- the management module may be a single board, which may include a processor, and the processor may be a dedicated hardware or chip, such as a microprocessor (including a central processing unit (CPU), etc.), application-specific integrated circuits (application integrated circuits, etc.). -specific integrated circuit, ASIC), or can be one or more integrated circuits used to turn on or turn off the linked power supply function.
- the power supply module may include n power management systems and n power supplies. The n power management systems correspond to the n power supplies one-to-one, and n is an integer greater than or equal to 2.
- Each power management system is used to manage a corresponding power supply, and each power management system can detect the output power of the power supply it manages.
- the power management system can be a digital signal processor (DSP) or the like.
- DSP digital signal processor
- the energy storage module can include multiple energy storage management systems and energy storage components managed by each energy storage management system. Each energy storage management system can detect the output power of the energy storage components it manages, such as when the energy storage When the component is a battery, the energy storage management system may be a battery management system (BMS).
- BMS battery management system
- One transmission end of the management module is connected to the transmission end of the power supply module, and the other transmission end of the management module is connected to the transmission end of the energy storage module.
- Each power management system in the power supply module may send the output power of the power supply detected in the current time period to the management module.
- Each energy storage management system in the energy storage module can send the output power of the energy storage element detected in the current time period to the management module.
- the processor in the management module can accumulate all the output power sent by the power module to obtain the power consumed by the load in the current time period.
- the processor in the management module can accumulate all the output power sent by the power supply module and the energy storage module to obtain the power consumed by the load in the current time period.
- the operation of the management module to predict the power consumed by the load in the next time period may be: the management module predicts the power consumed by the load in the next time period through the power consumption relationship of the load according to the time range of the next time period; or, manage According to the time range of the next time period, the module predicts the business that the load will run in the next time period through the business operation relationship of the load, and predicts the power consumed by the load in the next time period based on the predicted business.
- the power consumption relationship of the load is obtained by analyzing the power consumed by the load in various time periods in the past. That is, the management module can establish a correlation database between the time period and the power consumed by the load, and then, based on this correlation database, establish the power consumption relationship of the load through the learning algorithm. The power consumption relationship can predict the load consumed in different time periods. power.
- the power consumption relationship may be a functional relationship, or a neural network model, etc., which is not limited in the embodiment of the present application.
- the independent variable in the functional relationship can be a time range
- the dependent variable in the functional relationship can be power consumption.
- a certain time range is substituted into the functional relationship to obtain The function value of is the power consumed by the load in this time range.
- the power consumption relationship is a neural network model
- the input of the neural network model can be the time range
- the output of the neural network model can be the power consumption. In this way, after a certain time range is input to the neural network model, The output of the neural network model is the power consumed by the load in this time range.
- the management module when the management module predicts the power consumed by the load in the next time period through the power consumption relationship of the load according to the time range of the next time period, the management module can input the time range of the next time period into the power consumption relationship, The power output by the power consumption relationship is used as the predicted power consumed by the load in the next time period.
- the business operation relationship of the load is obtained by analyzing the business that the load has run in various time periods in the past. That is, the management module can establish an associated database between the time period and the load running business, and then based on this associated database, through the learning algorithm to establish the load business operation relationship, the business operation relationship can predict the load running in different time periods business.
- the business operation relationship may be a functional relationship, or a neural network model, etc., which is not limited in the embodiment of the present application.
- the independent variable in the functional relationship can be a time range
- the dependent variable in the functional relationship can be a business identifier.
- the function value of is the business identifier of the business that the load runs in this time range.
- the input of the neural network model can be a time range
- the output of the neural network model can be a business identifier.
- the output of the neural network model is the service identification of the service that the load runs in this time range.
- the business identifier is used to identify the business, such as the business name, code, etc.
- the management module when the management module predicts the business that the load will run in the next time period based on the time range of the next time period through the business operation relationship of the load, the management module can input the time range of the next time period into the business operation relationship, The business identified by the business identifier output by the business operation relationship is used as the business that the predicted load will run in the next time period.
- the management module when the management module predicts the power consumed by the load in the next time period based on the predicted service, the management module can obtain the corresponding consumption from the corresponding relationship between the service ID and the power consumption according to the service ID of the predicted service.
- the power is the predicted power consumed by the load in the next time period.
- the correspondence between the service ID and the power consumption can be set in advance, and the power consumption corresponding to each service ID is the power that the load usually consumes when running the service identified by the service ID.
- the management module can obtain the corresponding power consumption from the corresponding relationship between service ID and power consumption as shown in Table 1 according to service ID 1. Power 1, using power 1 as the predicted power consumed by the load in the next time period.
- Business identity Power consumption Business ID 1 Power 1 Business Identity 2 Power 2 Business logo 3 Power 3 ... ...
- the management module obtains the power output by the power supply module and the remaining capacity of the energy storage module; if the power output by the power supply module is greater than the limited power of the power supply module, according to the remaining capacity of the energy storage module and the second power, Determine whether to enable the linkage power supply function.
- the second power is the difference between the power output by the power module and the limited power of the power module.
- the limited power of the power supply module can be set in advance, and the limited power of the power supply module can be equal to the rated power of the power supply module, or slightly less than the rated power of the power supply module.
- the limited power of the power supply module can be that of the power supply module. 0.9 times the rated power, etc.
- each power management system in the power supply module can detect the output power of the power supply managed by it and send it to the management module.
- the processor in the management module can accumulate all the output power sent by the power module to obtain the power output by the power module.
- the remaining capacity of the energy storage module refers to the maximum amount of electricity that the energy storage module can output if the energy storage module is currently to be used for power supply.
- the remaining capacity of the energy storage module can be obtained by detecting the working state and remaining capacity of the energy storage element included in the energy storage module.
- each energy storage management system in the energy storage module can detect the working status and remaining capacity of the energy storage element it manages and send it to the management module.
- the processor in the management module can determine the normally working energy storage element according to the working state of the energy storage element sent by the energy storage module, and then accumulate the remaining capacity of all normally working energy storage elements to obtain the remaining capacity of the energy storage module.
- the power output by the power module is the power consumed by the load when the linkage power supply function has not been turned on. If the output power of the power module is greater than the limited power of the power module, it indicates that the power consumed by the load has exceeded the power supply capacity of the power module. Therefore, at this time, the management module can subtract the power output by the power module from the limited power of the power module to obtain the second power. The second power is the part of the power consumed by the load that exceeds the power supply capacity of the power supply module. After that, the power supply module can determine whether the energy storage module is sufficient to provide the second power according to the remaining capacity of the energy storage module, so as to determine whether to enable the linkage power supply function accordingly.
- the operation of the management module to determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module and the second power may be: if the remaining capacity of the energy storage module divided by the preset duration is greater than or equal to the second power, Then the management module turns on the linkage power supply function; if the value obtained by dividing the remaining capacity of the energy storage module by the preset duration is less than the second power, the management module does not turn on the linkage power supply function.
- the preset duration can be set in advance. After dividing the remaining capacity of the energy storage module by the preset duration, the maximum output power of the energy storage module can be obtained.
- the maximum output power of the energy storage module is the maximum power that the energy storage module can output when the power supply for at least a preset duration is required. Therefore, if the maximum output power of the energy storage module is greater than or equal to the second power, it means that the energy storage module is sufficient to share the part of the power consumed by the load that exceeds the power supply capacity of the power supply module, and the linkage power supply function can be activated at this time. If the maximum output power of the energy storage module is lower than the second power, it means that the energy storage module is not enough to share the power consumed by the load that exceeds the power supply capacity of the power supply module, and the linkage power supply function may not be enabled at this time.
- the power management system may determine whether the linked power supply function is turned on.
- the power supply module can perform the following step 302 to supply power to the load. If the linkage power supply function is turned on, the power supply module may perform the following steps 303 to step 306 to supply power to the load.
- Step 302 The power supply module controls its own output voltage to a preset voltage, so that the power supply module supplies power to the load and charges the energy storage module.
- the preset voltage can be set in advance, and the preset voltage is the default output voltage of the power module.
- the preset voltage is higher than the set voltage of the energy storage module.
- the set voltage of the energy storage module is the voltage at which the energy storage module can maintain a constant and stable output. If the voltage of the charging terminal of the energy storage module is greater than the set voltage of the energy storage module, the energy storage module is in a charging state; if the voltage of the charging terminal of the energy storage module is less than the set voltage of the energy storage module, the energy storage module is in a discharging state.
- the energy storage module When the output voltage of the power module is higher than the set voltage of the energy storage module, the energy storage module is in a charging state. At this time, the power module can not only supply power to the load, but also charge the energy storage module. In this way, not only can the normal power supply to the load be guaranteed, but also the capacity of the energy storage module can be increased, which facilitates the subsequent use of the energy storage module to supply power to the load.
- the power management system may control the output voltage of the power supply managed by the power management system to a preset voltage.
- the power supply module used in the embodiments of this application can select a power supply module whose rated power is close to the power consumed by the load when providing typical services.
- the rated power can be selected as the power consumed by the load when providing typical services.
- the power supply module of the power since the load is providing typical services most of the time, the power consumed by the load in most of the time is close to the rated power of the power module, which not only guarantees the normal operation of the business, but also compares it with the related technologies.
- the scheme of selecting a power module whose rated power is close to the power consumed by the load at the peak of the service can save a certain amount of power in the embodiment of the application, and the saved power can be used for power supply of other devices, thereby improving power utilization .
- the linkage power supply function can be set to supply power to the load through the following steps 303-306 when the linkage power supply function is turned on, and the existing linkage power supply function is used when the linkage power supply function is not turned on. Way (that is, step 302) to supply power to the load, so as to achieve compatibility with the existing power supply method.
- the linkage power supply function may not be set, but the following steps 303 to 306 are always used to supply power to the load. In other words, it is not necessary to perform step 301 and step 302, and directly use the following steps 303-306 to supply power to the load. That is, during the business operation, the power module always chooses whether it is only the load according to the power consumption of the load. For power supply, it still combines itself and the energy storage module to supply power to the load.
- Step 303 When the power module supplies power to the load, the power module determines the power output by the power module.
- the power output by the power module is the power consumed by the load. In this way, it is convenient to determine whether the power supply module and the energy storage module need to be combined to supply power to the load according to the power consumed by the load.
- the power management system may determine the output power of the power supply managed by the power supply management system.
- the power supply module can always determine the power output by the power supply module and transmit it to the management module, so that the management module can determine whether the linkage power supply function needs to be turned on accordingly.
- the power module supplies power to the load, that is, when the output voltage of the power module is higher than the set voltage of the energy storage module, if the linkage power supply function is turned on, the power module can detect whether the power output by the power module is generated by the power module The limited power is increased below the limited power to be greater than the limited power, so as to determine whether to adjust its output voltage to supply power jointly with the energy storage module.
- the specific process is as follows.
- Step 304 If the power output by the power module is less than or equal to the limited power of the power module, the power module controls its own output voltage to a preset voltage, so that the power module supplies power to the load and charges the energy storage module.
- the limited power of the power module is close to the rated power of the power module, and the rated power of the power module is the maximum output power of the power module. Since the load is providing typical services most of the time, and the power consumed by the load when providing typical services is relatively close to the rated power of the power module in the embodiment of this application, the power consumed by the load in most of the time is also close to The limited power of the power supply module can ensure the utilization rate of the power supply module.
- the power consumed by the load at the peak of the service is much greater than the power consumed by the load when providing typical services, the power consumed by the load at the peak of the service will be greater than the limited power of the power supply module. Since the load provides typical services most of the time, it will be at the peak of the service in a small part of the time, so the power consumed by the load in most of the time is less than the limited power of the power supply module, and the power consumed in a small part of the time will be greater than the limit of the power supply module power.
- the power module can control its own output voltage to the preset voltage to continue supplying power to the load , And charge the energy storage module.
- the energy storage module includes a charging circuit, a discharging circuit and an energy storage element.
- the setting voltage of the energy storage element is less than the preset voltage.
- the setting voltage of the energy storage element may be 52V, and the preset voltage may be 54.5V.
- the default output voltage of the power module is the preset voltage. Since the preset voltage is greater than the set voltage of the energy storage element, the energy storage module is in a charging state. At this time, the power module charges the energy storage element through the charging circuit and supplies power to the load.
- step 304 may be when any one of the n power management systems detects the output of the power source managed by it.
- the output voltage of the controlled power supply is maintained at the default voltage.
- the first power is the limited power of the power supply module divided by n. Due to the load balancing feature of the power supply module, the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the output power of this power supply is less than or equal to the first power, then The output power of the power supply module should be less than or equal to the limited power of the power supply module. Therefore, at this time, the output voltage of the managed power supply can be controlled to maintain the default voltage to continue supplying power to the load and charging the energy storage module.
- Step 305 If the output power of the power module rises from below the limited power of the power module to greater than the limited power, the power module controls its own output voltage to be lower than the set voltage of the energy storage module, using the power module and the energy storage module as loads powered by.
- the output power of the power module will also increase to greater than the power supply in a short time.
- the limited power of the module When the power consumed by the load is greater than the limited power of the power supply module for a long time, if the power supply module is only used to supply power to the load, power failure will occur due to the insufficient power supply capability of the power supply module.
- the power output by the power module rises from below the limited power of the power module to greater than the limited power, it indicates that the power consumed by the load has changed from being within the power supply capacity of the power supply module to exceeding the power supply capacity of the power supply module.
- the power supply module and the energy storage module can be combined to supply power to the load to ensure that the load will not lose power when the power consumed by the load exceeds the power supply capacity of the power supply module and ensure the normal operation of the load. In this way, when the power consumed by the load is too large due to the business peak, reliable power supply can be realized through the combination of the power supply module and the energy storage module, thereby ensuring that the business performance is not affected even when the business peaks.
- the power supply module supplies power
- the synchronous power supply of the energy storage module is also supported, so that the utilization rate of the energy storage module can be improved.
- the energy storage module when the output voltage of the power module is lower than the set voltage of the energy storage module, the energy storage module is in a discharging state. At this time, the energy storage module can automatically share the power consumed by the load that exceeds the power supply capacity of the power module. That is to say, by controlling the output voltage of the power supply module to be lower than the set voltage of the energy storage module in the embodiment of the present application, it can be ensured that the part of the power consumed by the load that exceeds the power supply capacity of the power supply module is automatically provided by the energy storage module.
- the set voltage of the energy storage element is less than the preset voltage.
- 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.
- the power module controls its own output voltage to decrease until it drops below 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.
- step 305 may be when any one of the n power management systems detects the output of the power supply managed by it.
- the output voltage of the power supply managed by the control is lower than the set voltage of the energy storage module.
- the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the power output by this power supply is the first If the power is lower than the first power, the output power of the power module should be raised from below the limited power of the power module to greater than the limited power, so at this time, the output voltage of the managed power supply can be controlled to be lower than the energy storage module The setting voltage to make the energy storage module in a discharging state.
- the power module when the output power of the power module rises from below the limited power of the power module to greater than the limited power, before the power module controls its own output voltage to be lower than the set voltage of the energy storage module, the power module The third instruction information may also be sent to the management module to indicate that the power supply module and the energy storage module will be combined to supply power.
- the management module can determine the power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module. After that, when the power supply module controls its output voltage to be lower than the set voltage of the energy storage module, that is, when the power supply module and the energy storage module supply power to the load, the management module can limit the power consumed by the load according to the power cap value. .
- the power supply module and the energy storage module supply power to the load
- the total power output by the power supply module and the energy storage module is the power consumed by the load.
- the management module when the management module limits the power consumed by the load according to the power cap value, it may perform a power cap operation when the total power output by the power supply module and the energy storage module is greater than the power cap value.
- the power capping operation refers to the technology of setting the upper limit of power consumption to the load. The power capping operation is used to limit the power consumed by the load below the power cap value. In this way, the safety of power supply can be guaranteed and the system can be prevented from powering down.
- the power capping value is set in combination with the power supply capabilities of the energy storage module and the power supply module.
- the power capping is only based on the power supply capability of the power supply module. For example, the power supply capacity of the system can be improved, so that the system can run over frequency and ensure that business performance is not affected.
- the management module determines the power cap value according to the remaining capacity of the energy storage module and the limited power of the power supply module, it can first obtain the maximum output power of the energy storage module.
- the maximum output power of the energy storage module is the remaining capacity of the energy storage module. Divide by the preset duration; add the maximum output power of the energy storage module and the limited power of the power supply module to obtain the power cap value.
- the maximum output power of the energy storage module can be obtained by dividing the remaining capacity of the energy storage module by the preset duration.
- the maximum output power of the energy storage module is the maximum power that the energy storage module can output when the power supply for at least a preset duration is required. Therefore, by adding the maximum output power of the energy storage module and the limited power of the power supply module, the maximum power that can be output by the combination of the energy storage module and the power supply module can be obtained, which is used as the power cap value.
- step 305 that is, after the power supply module controls its own output voltage to be lower than the set voltage of the energy storage module, the following step 306 may also be performed.
- Step 306 If the output power of the power supply module drops from above the limited power of the power supply module to less than the limited power, the power supply module controls its own output voltage to be higher than the set voltage of the energy storage module, so that the power supply module supplies power to the load and supplies power to the storage. The module can be charged.
- the power module supplies power to the load and charges the energy storage module. In this way, not only can the normal power supply to the load be guaranteed, but also the capacity of the energy storage module can be increased, which facilitates the subsequent use of the energy storage module to supply power to the load.
- the power supply module when the power supply module controls its own output voltage to be higher than the set voltage of the energy storage module, the power supply module can restore its own default output voltage, that is, restore its own output voltage to the preset voltage.
- the energy storage module 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.
- the set voltage of the energy storage element is less than the preset voltage.
- 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.
- the power module controls its own output voltage to increase until it is higher than the set voltage of the energy storage element.
- the power module can directly output its own output voltage.
- the voltage is restored to the preset voltage.
- 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.
- step 306 may be when any one of the n power management systems detects the output of the power supply managed by it.
- the output voltage of the power supply managed by the control is higher than the set voltage of the energy storage module.
- the output power of the n power supplies in the power supply module is the same or similar, so for any one of the n power supplies, if the power output by this power supply is the first If the power is lower than the first power, the output power of the power supply module should be reduced from the limited power of the power supply module to less than the limited power, so the output voltage of the managed power supply can be controlled to be higher than that of the energy storage module at this time To recharge the energy storage module and supply power to the load.
- FIG. 6 is a power-time graph provided by an embodiment of the present application, which is used to show the trend of the power consumed by the load over time.
- the power cap value is determined according to the remaining capacity of the energy storage module and the limited power of the power supply module.
- the power range from the limited power of the power supply module to the power cap value is the joint power supply area of the power supply module and the energy storage module.
- the power supply module supplies power to the load, that is, before the a1 time, a2 time-a3 time, a4 time-a5 time, and a6 time in FIG. 6, Only the power module supplies power to the load.
- the power module and the energy storage module supply power to the load, that is, in Fig. 6 a1 time-a2 time, a3 time-a4 time, a5 time-a6 time, by the power module Combined with the energy storage module to supply power to the load.
- the shaded area shown in FIG. 6 is used to indicate the amount of electricity output by the energy storage module, and the area of each shaded area is the amount of electricity output by the energy storage module in a time period corresponding to each shaded area. It can be seen that during a5 time-a6 time, the energy storage module outputs the most electricity.
- the power output by the power module is determined when the power module supplies power to the load. After that, if the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, the output voltage of the control power supply module is lower than the set voltage of the energy storage module, and the power supply module and the energy storage module supply power to the load. Ensure the normal operation of the load. In this way, when the power consumed by the load is too large due to the business peak, reliable power supply can be realized through the combination of the power supply module and the energy storage module, so as to ensure that the business performance is not affected even at the peak of the business.
- Fig. 7 is a schematic diagram of a power supply system provided by an embodiment of the present application.
- the system includes a power supply module 701 and an energy storage module 702.
- the output end of the power supply module 701 is connected to the charging end of the energy storage module 702, and the output end of the power supply module 701 and the discharge end of the energy storage module 702 are both connected to the load.
- the power module 701 is connected to the mains.
- the power module 701 is used to determine the power output by the power module 701 when the power module 701 supplies power to the load;
- the power supply module 701 is also used to control the output voltage of the power supply module 701 to be lower than the set voltage of the energy storage module 702 when the output power of the power supply module 701 rises from below the limited power of the power supply module 701 to greater than the limited power, so that the power supply module 701 and energy storage module 702 supply power to the load.
- the power supply module 701 is also used for:
- the output voltage of the power module 701 is controlled to be lower than the set voltage of the energy storage module 702.
- the system further includes a management module 703.
- One transmission end of the management module 703 is connected to the transmission end of the power supply module 701, and the other transmission end of the management module 703 is connected to the transmission end of the energy storage module 702;
- the management module 703 is used to predict the power consumed by the load in the next time period. When the predicted power is greater than the limited power of the power supply module 701, turn on the linkage power supply function; or, for the power output of the power module 701 to be greater than the power supply module When the power of 701 is limited, determine whether to enable the linkage power supply function according to the remaining capacity of the energy storage module 702 and the second power, the second power is the difference between the power output by the power module 701 and the limited power of the power module 701;
- the management module 703 is further configured to send first indication information to the power supply module 701 when the linkage power supply function has been turned on;
- the power supply module 701 is further configured to determine that the linked power supply function is turned on when the first instruction information sent by the management module 703 is received.
- the power supply module 701 includes n power management systems and n power supplies, the n power management systems correspond to the n power supplies one-to-one, and each power management system of the n power management systems is used to manage the corresponding power supply.
- n is an integer greater than or equal to 2;
- Each of the n power management systems is used to control the output voltage of the managed power supply to be lower than the energy storage module 702 when the output power of the managed power supply rises from below the first power to greater than the first power
- the first power is the limited power of the power supply module 701 divided by n.
- the power supply module 701 is also used for:
- the output voltage of the power module 701 is controlled to be higher than the set voltage of the energy storage module 702, so that the power module 701 supplies power to the load and charges the energy storage module 702 .
- the system further includes a management module 703.
- One transmission end of the management module 703 is connected to the transmission end of the power supply module 701, and the other transmission end of the management module 703 is connected to the transmission end of the energy storage module 702;
- the power module 701 is configured to send third indication information to the management module 703 when the power output by the power module 701 rises from below the limited power of the power module 701 to greater than the limited power;
- the management module 703 is configured to determine the power cap value according to the remaining capacity of the energy storage module 702 and the limited power of the power module 701 when receiving the third instruction information sent by the power module 701, and limit the power consumed by the load according to the power cap value .
- the power output by the power module is determined when the power module supplies power to the load. After that, if the output power of the power supply module rises from below the limited power of the power supply module to greater than the limited power, the output voltage of the control power supply module is lower than the set voltage of the energy storage module, and the power supply module and the energy storage module supply power to the load. Ensure the normal operation of the load. In this way, when the power consumed by the load is too large due to the business peak, reliable power supply can be realized through the combination of the power supply module and the energy storage module, thereby ensuring that the business performance is not affected even when the business peaks.
- the foregoing power supply system embodiment and the power supply method embodiment belong to the same concept, and the specific implementation process of the operations performed by the power supply module 701, the energy storage module 702, and the management module 703 can be referred to as shown in FIG. 3 above.
- the embodiment of the power supply method will not be repeated here.
- FIG. 9 is a schematic structural diagram of a power supply device provided by an embodiment of the present application.
- the power supply device may be the power supply module 101 shown in FIG. 1, the power supply module described in the embodiment of FIG. 3, or the power supply module 701 described in the embodiment of FIG. 7.
- the power supply device may include a power management system 901 and a power supply 902.
- the power management system 901 may be implemented in the form of a single board.
- the power management system 901 may include an interface card 9011, a processor 9012, and a memory 9013.
- the interface card 9011 is used to realize the docking function with other devices. External data can enter the interface card 9011 and be transmitted to the processor 9012, and the data processed by the processor 9012 can be sent from the interface card 9011.
- the processor 9012 may be a microprocessor (including a central processing unit (CPU), etc.), an application-specific integrated circuit (ASIC), or may be one or more for controlling the solution of the application Integrated circuit for program execution.
- a microprocessor including a central processing unit (CPU), etc.
- ASIC application-specific integrated circuit
- the memory 9013 can be read-only memory (ROM), random access memory (RAM), electrically erasable programmable read-only memory (read-only memory, EEPROM), disk storage
- ROM read-only memory
- RAM random access memory
- EEPROM electrically erasable programmable read-only memory
- disk storage The medium or other magnetic storage devices, or any other medium that can be used to store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
- the memory 9013 is used to store the program code 910 for executing the solution of the present application, and the processor 9012 is used to execute the program code 910 stored in the memory 9013.
- the power management system 902 can use the processor 9012 and the program code 910 in the memory 9013 to implement the operations performed by the power module in the embodiment of FIG. 3 above.
- FIG. 10 is a schematic structural diagram of a management device provided by an embodiment of the present application.
- the management device may be the management module 103 shown in FIG. 1, the management module described in the embodiment of FIG. 3, or the management module 703 described in the embodiment of FIG. 7.
- the management device can be implemented in the form of a single board.
- the management device may include an interface card 1001, a processor 1002, and a memory 1003.
- the interface card 1001 is used to implement the docking function with other devices. External data can enter the interface card 1001 and be transmitted to the processor 1002, and the data processed by the processor 1002 can be sent from the interface card 1001.
- the processor 1002 may be a microprocessor (including a CPU, etc.), an ASIC, or may be one or more integrated circuits for controlling the execution of programs in the solution of the present application.
- the memory 1003 may be ROM, RAM, EEPROM, magnetic disk storage media or other magnetic storage devices, or any other media that can be used to store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.
- the memory 1003 is used to store the program code 1010 for executing the solution of the present application, and the processor 1002 is used to execute the program code 1010 stored in the memory 1003.
- the management device can implement the operations performed by the management module in the embodiment of FIG. 3 above through the processor 1002 and the program code 1010 in the memory 1003.
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example: floppy disk, hard disk, tape), optical medium (for example: Digital Versatile Disc (DVD)) or semiconductor medium (for example: Solid State Disk (SSD)) Wait.
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Abstract
公开了一种供电方法、***、电源设备和存储介质,属于电子技术领域。该方法应用于包括电源模块、储能模块和负载的***,电源模块的输出端与储能模块的充电端连接,电源模块的输出端和储能模块的放电端均与负载连接,电源模块接入市电。在电源模块为负载供电的过程中,确定电源模块输出的功率。若电源模块输出的功率由电源模块的限定功率以下升至大于该限定功率,则控制电源模块的输出电压低于储能模块的整定电压,以由电源模块和储能模块为负载供电,保证负载的正常运行。如此,可以在因业务峰值而导致负载消耗的功率过大时,通过电源模块和储能模块联合实现可靠供电,从而可以保证即使在业务峰值时业务性能也能不受影响。
Description
本申请要求于2020年03月05日提交中国专利局、申请号为202010146819.4、发明名称为“供电方法、***、电源设备和存储介质”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及电子技术领域,特别涉及一种供电方法、***、电源设备和存储介质。
供电可靠性对维持电子设备的正常运行起着至关重要的作用。对机房中的机柜而言,其中一般包括电源和负载。电源接入市电,可以为负载供电。负载包括服务器、交换机等,可以提供对应的业务。
为了保证电源的利用率,一般会按照负载在提供典型业务时所消耗的功率来配置电源的额定功率。这种情况下,在出现业务峰值时,容易因负载消耗的功率过大而出现供电不足现象,导致掉电。
为此,增加了功率封顶机制。具体地,当负载消耗的功率大于电源的额定功率时,执行功率封顶操作,以将负载消耗的功率限制在电源的额定功率以下,确保不掉电。然而,由于在业务峰值时限制了功率,所以会对业务性能造成影响。
发明内容
本申请提供了一种供电方法、***、电源设备、存储介质和程序产品,可以在业务峰值时保证业务性能不受影响。所述技术方案如下:
第一方面,提供了一种供电方法,应用于包括电源模块、储能模块和负载的***,电源模块的输出端与储能模块的充电端连接,电源模块的输出端和储能模块的放电端均与负载连接,电源模块接入市电。
在该方法中,在电源模块为负载供电的过程中,确定电源模块输出的功率。若电源模块输出的功率由电源模块的限定功率以下升至大于限定功率,则控制电源模块的输出电压低于储能模块的整定电压,以由电源模块和储能模块为负载供电。
需要说明的是,市电为工频交流电,是从电力管网中提取的电力资源,市电一般是由电力公司提供。
另外,电源模块的限定功率可以预先进行设置,且电源模块的限定功率可以与电源模块的额定功率相等,或稍小于电源模块的额定功率,如电源模块的限定功率可以是电源模块的额定功率的0.9倍等。电源模块的额定功率是指电源模块能够连续输出的有效功率,也就是电源模块可以持续正常工作的最大功率。
再者,当电源模块的输出电压低于储能模块的整定电压时,储能模块处于放电状态,此时储能模块可以自动分担负载消耗的功率中超出电源模块的供电能力的部分。也就是说,本申请实施例中通过控制电源模块的输出电压低于储能模块的整定电压,可以保证负载消耗的功率中超出电源模块的供电能力的部分自动由储能模块来提供。
在本申请中,在因业务峰值而导致负载消耗的功率过大时,通过电源模块和储能模 块联合实现可靠供电,从而可以保证即使在业务峰值时业务性能也能不受影响。并且,在电源模块供电的情况下,也支持储能模块的同步供电,从而可以提高储能模块的利用率。
可选地,上述步骤可以由电源模块来执行,具体可以是由电源模块中的电源管理***来执行。当然,上述步骤也可以是由其它单独设置的模块来执行,如可以在该***中单独设置一个管理模块来执行。实际应用中,可以根据需求选择合适的执行主体,本申请对此不作限定。
在一种可能的实现方式中,可以设置联动供电功能,联动供电功能是指能够联合电源模块和储能模块为负载进行供电的功能。这种情况下,可以在已开启联动供电功能,且电源模块输出的功率由电源模块的限定功率以下升至大于限定功率时,再控制电源模块的输出电压低于储能模块的整定电压。如此,可以保证是在有联动供电需求的情况下,再通过电源模块和储能模块来联合供电。
需要说明的是,储能模块的整定电压是储能模块能够维持持续不变的稳定输出时的电压。若储能模块的充电端的电压大于储能模块的整定电压,则储能模块处于充电状态;若储能模块的充电端的电压小于储能模块的整定电压,则储能模块处于放电状态。
可选地,本申请中,电源模块可以在接收到管理模块发送的第一指示信息时,确定联动供电功能已开启。电源模块在确定联动供电功能已开启后,电源模块可以在电源模块输出的功率由电源模块的限定功率以下升至大于限定功率时,控制电源模块的输出电压低于储能模块的整定电压。此时管理模块的一个传输端可以与电源模块的传输端连接,管理模块的另一个传输端可以与储能模块的传输端连接。
一种情况下,第一指示信息可以是管理模块在预测出负载在下一个时间周期内消耗的功率大于电源模块的限定功率时发送的。
在本申请中,若管理模块预测出负载在下一个时间周期内消耗的功率大于电源模块的限定功率,则表明负载消耗的功率很有可能即将超出电源模块的供电能力,因而此时可以开启联动供电功能,以便后续可以联合电源模块和储能模块为负载供电。
可选地,管理模块预测负载在下一个时间周期内消耗的功率的操作可以为:根据下一个时间周期的时间范围,通过负载的功率消耗关系预测负载在下一个时间周期内消耗的功率;或者,根据下一个时间周期的时间范围,通过负载的业务运行关系预测负载在下一个时间周期内运行的业务,根据预测出的业务预测负载在下一个时间周期内消耗的功率。
需要说明的是,负载的功率消耗关系是分析负载过去在各个时间周期内消耗的功率得到。也即是,可以建立时间周期与负载消耗的功率的关联数据库,然后根据此关联数据库,通过学习算法建立起负载的功率消耗关系,该功率消耗关系可以预测负载在不同时间周期内消耗的功率。该功率消耗关系可以是一个函数关系,也可以是一个神经网络模型等。
另外,负载的业务运行关系是分析负载过去在各个时间周期内运行的业务得到。也即是,可以建立时间周期与负载运行的业务的关联数据库,然后根据此关联数据库,通过学习算法建立起负载的业务运行关系,该业务运行关系可以预测负载在不同时间周期内运行的业务。该业务运行关系可以是一个函数关系,也可以是一个神经网络模型等。
另一种情况下,第一指示信息可以是管理模块在电源模块输出的功率大于电源模块的限定功率,且根据储能模块的剩余容量和第二功率确定开启联动供电功能时发送的,第二功率是电源模块输出的功率与电源模块的限定功率之间的差值。
可选地,管理模块根据储能模块的剩余容量和第二功率,确定是否开启联动供电功能的操作可以为:若储能模块的剩余容量除以预设时长后得到的数值大于或等于第二功率,则开启联动供电功能。
在本申请中,在尚未开启联动供电功能时,电源模块输出的功率就是负载消耗的功率。若电源模块输出的功率大于电源模块的限定功率,则表明负载消耗的功率已经超出电源模块的供电能力,因而此时可以将电源模块输出的功率减去电源模块的限定功率,得到第二功率。第二功率就是负载消耗的功率中超出电源模块的供电能力的部分。
将储能模块的剩余容量除以预设时长后,可以得到储能模块的最大输出功率。储能模块的最大输出功率是在至少需要进行预设时长的供电的情况下,储能模块所能输出的最大功率。因而若储能模块的最大输出功率大于或等于第二功率,说明储能模块此时足以分担负载消耗的功率中超出电源模块的供电能力的部分,则此时可以开启联动供电功能。
可选地,本申请中,管理模块自身可以进行联动供电功能的开启。管理模块在开启联动供电功能后,可以在电源模块输出的功率由电源模块的限定功率以下升至大于限定功率时,控制电源模块的输出电压低于储能模块的整定电压。
需要说明的是,管理模块开启联动供电功能的方式可以有多种。例如,管理模块可以预测负载在下一个时间周期内消耗的功率;在预测出的功率大于电源模块的限定功率时,开启联动供电功能。或者,管理模块可以在电源模块输出的功率大于电源模块的限定功率时,根据储能模块的剩余容量和第二功率,确定是否开启联动供电功能。
在一种可能的实现方式中,电源模块包括n个电源管理***和n个电源,n个电源管理***与n个电源一一对应,n个电源管理***中的每个电源管理***用于管理对应的电源,n为大于或等于2的整数;若电源模块输出的功率由电源模块的限定功率以下升至大于限定功率,则控制电源模块的输出电压低于储能模块的整定电压的操作可以为:对于n个电源中的任意一个电源,若这个电源输出的功率由第一功率以下升至大于第一功率,则控制这个电源的输出电压低于储能模块的整定电压,第一功率是电源模块的限定功率除以n得到。
在本申请中,由于电源模块的负载均衡特性,电源模块中的n个电源输出的功率相同或相近,所以对于该n个电源中的任意一个电源来说,如果这个电源输出的功率由第一功率以下升至大于第一功率,则电源模块输出的功率就应该是由电源模块的限定功率以下升至大于该限定功率的,因而此时可以控制这个电源的输出电压低于储能模块的整定电压,以使储能模块处于放电状态。
在一种可能的实现方式中,控制电源模块的输出电压低于储能模块的整定电压之后,若电源模块输出的功率由限定功率以上降至小于限定功率,则还可以控制电源模块的输出电压高于储能模块的整定电压,以由电源模块为负载供电且为储能模块充电。
在本申请中,若电源模块输出的功率由电源模块的限定功率以上降至小于该限定功率,表明负载消耗的功率很有可能已经从之前超出电源模块的供电能力变为在电源模块 的供电能力以内,则可以由电源模块为负载供电且为储能模块充电。如此,不仅可以保证正常为负载供电,且可以提高储能模块的容量,便于后续使用储能模块为负载供电。
在一种可能的实现方式中,电源模块可以在电源模块输出的功率由电源模块的限定功率以下升至大于限定功率时,控制电源模块的输出电压低于储能模块的整定电压。这种情况下,电源模块还可以向管理模块发送第三指示信息,由管理模块根据储能模块的剩余容量和电源模块的限定功率确定功率封顶值,并按照功率封顶值限制负载消耗的功率。
在另一种可能的实现方式中,管理模块可以在电源模块输出的功率由电源模块的限定功率以下升至大于限定功率时,控制电源模块的输出电压低于储能模块的整定电压。这种情况下,管理模块还可以根据储能模块的剩余容量和电源模块的限定功率确定功率封顶值,并按照功率封顶值限制负载消耗的功率。
在本申请中,管理模块可以在电源模块和储能模块为负载供电的过程中,结合储能模块和电源模块的供电能力来设置功率封顶值,相比于相关技术中仅依据电源模块的供电能力来进行功率封顶的机制,本申请可以提高***的供电能力,使得***得以超频运行,保证业务性能不受影响。
可选地,管理模块根据储能模块的剩余容量和电源模块的限定功率,确定功率封顶值的操作可以为:将储能模块的剩余容量除以预设时长后得到的数值与电源模块的限定功率相加,得到功率封顶值。
需要说明的是,将储能模块的剩余容量除以预设时长后,可以得到储能模块的最大输出功率。储能模块的最大输出功率是在至少需要进行预设时长的供电的情况下,储能模块所能输出的最大功率。因而将储能模块的最大输出功率与电源模块的限定功率相加,就可以得到储能模块和电源模块联合后所能输出的最大功率,将此作为功率封顶值。
第二方面,提供了一种供电***,所述***包括电源模块和储能模块,所述电源模块的输出端与所述储能模块的充电端连接,所述电源模块的输出端和所述储能模块的放电端均与负载连接,所述电源模块接入市电;
所述电源模块,用于在所述电源模块为所述负载供电的过程中,确定所述电源模块输出的功率;
所述电源模块,还用于在所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率时,控制所述电源模块的输出电压低于所述储能模块的整定电压,以由所述电源模块和所述储能模块为所述负载供电。
可选地,所述电源模块还用于:
在已开启联动供电功能,且所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率时,控制所述电源模块的输出电压低于所述储能模块的整定电压。
可选地,所述***还包括管理模块,所述管理模块的一个传输端与所述电源模块的传输端连接,所述管理模块的另一个传输端与所述储能模块的传输端连接;
所述管理模块,用于预测所述负载在下一个时间周期内消耗的功率,在预测出的功率大于所述电源模块的限定功率时,开启所述联动供电功能;或者,用于在所述电源模 块输出的功率大于所述电源模块的限定功率时,根据所述储能模块的剩余容量和第二功率,确定是否开启所述联动供电功能,所述第二功率是所述电源模块输出的功率与所述电源模块的限定功率之间的差值;
所述管理模块,还用于在已开启所述联动供电功能时,向所述电源模块发送第一指示信息;
所述电源模块,还用于在接收到所述管理模块发送的所述第一指示信息时,确定所述联动供电功能已开启。
可选地,所述电源模块包括n个电源管理***和n个电源,所述n个电源管理***与所述n个电源一一对应,所述n个电源管理***中的每个电源管理***用于管理对应的电源,所述n为大于或等于2的整数;
所述n个电源管理***中的每个电源管理***,用于在所管理的电源输出的功率由第一功率以下升至大于所述第一功率时,控制所管理的电源的输出电压低于所述储能模块的整定电压,所述第一功率是所述电源模块的限定功率除以n得到。
可选地,所述电源模块还用于:
在所述电源模块输出的功率由所述限定功率以上降至小于所述限定功率时,控制所述电源模块的输出电压高于所述储能模块的整定电压,以由所述电源模块为所述负载供电且为所述储能模块充电。
可选地,所述***还包括管理模块,所述管理模块的一个传输端与所述电源模块的传输端连接,所述管理模块的另一个传输端与所述储能模块的传输端连接;
所述电源模块,用于在所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率时,向管理模块发送第三指示信息;
所述管理模块,用于在接收到所述电源模块发送的第三指示信息时,根据所述储能模块的剩余容量和所述电源模块的限定功率确定功率封顶值,并按照所述功率封顶值限制所述负载消耗的功率。
第三方面,提供了一种电源设备,所述电源设备包括电源管理***和电源,所述电源管理***用于管理电源;所述电源管理***包括接口卡、处理器和存储器;所述处理器通过所述接口卡发送数据或接收数据;所述存储器用于存储支持所述电源管理***执行上述第一方面所提供的供电方法的程序,以及存储用于实现上述第一方面所述的供电方法所涉及的数据。所述处理器被配置为用于执行所述存储器中存储的程序。
第四方面,提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,所述指令由处理器加载并执行上述第一方面所述的供电方法。
第五方面,提供了一种包含指令的计算机程序产品,所述指令由处理器加载并执行上述第一方面所述的供电方法。
上述第二方面、第三方面、第四方面和第五方面所获得的技术效果与上述第一方面中对应的技术手段获得的技术效果近似,在这里不再赘述。
图1是本申请实施例提供的一种***的示意图;
图2是本申请实施例提供的一种柜级***的示意图;
图3是本申请实施例提供的一种供电方法的流程图;
图4是本申请实施例提供的另一种***的示意图;
图5是本申请实施例提供的又一种***的示意图;
图6是本申请实施例提供的一种功率-时间曲线图;
图7是本申请实施例提供的一种供电***的示意图;
图8是本申请实施例提供的另一种供电***的示意图;
图9是本申请实施例提供的一种电源设备的结构示意图;
图10是本申请实施例提供的一种管理设备的结构示意图。
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请的实施方式作进一步地详细描述。
应当理解的是,本申请提及的“多个”是指两个或两个以上。在本申请的描述中,除非另有说明,“/”表示或的意思,例如,A/B可以表示A或B;本文中的“和/或”仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,为了便于清楚描述本申请的技术方案,采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定,并且“第一”、“第二”等字样也并不限定一定不同。
在对本申请实施例进行详细地解释说明之前,先对本申请实施例的***架构予以说明。
图1是本申请实施例涉及的一种***的示意图。参见图1,该***包括:电源模块101、储能模块102、管理模块103和负载104。
电源模块101接入市电,市电为工频交流电,是从电力管网中提取的电力资源。市电可以是由电力公司提供的电能。电源模块101的输出端与储能模块102的充电端连接,电源模块101的输出端和储能模块102的放电端均与负载104连接。管理模块103的一个传输端与电源模块101的传输端连接,管理模块103的另一个传输端与储能模块102的传输端连接。
示例地,电源模块101的输出端和储能模块102的放电端均可以通过母排来与负载104连接。母排是导电材料,是总制开关与各分路开关之间连接的铜排或铝排。总制开关是电源模块101的输出端和储能模块102的充电端与母排之间连接的开关,通过总制开关可以控制电源模块101和储能模块102对母排的供电。分路开关是指母排与负载104之间连接的开关,通过分路开关可以控制母排对负载104的供电。
电源模块101可以将市电的交流电转换为直流低压电后提供给负载104,如可以将220V(伏特)的交流电转换为48V的直流电后提供给负载104。电源模块101还可以为储能模块102充电。储能模块102也可以为负载104供电。
管理模块103可以监控电源模块101和储能模块102的运行情况,具体可以监控电源模块101输出的功率、储能模块102输出的功率、储能模块102的剩余容量等,并据此确定是否开启联动供电功能,联动供电功能是指能够联合电源模块101和储能模块 102对负载104进行供电的功能。
例如,该***可以是如图2所示的柜级***。电源模块101、储能模块102、管理模块103和负载104均位于机柜中。该机柜中还可以包括电源框,该电源框中包括电源槽和单板槽。
其中,电源模块101包括三个电源,位于该电源框中的电源槽内。储能模块102可以是备用电池组(battery backup unit,BBU),包括三个电池。管理模块103可以是单板,位于该电源框中的单板槽内,如管理模块103可以是远程管理控制器(remote management controller,RMC)板。管理模块103与电源模块101之间可以通过控制器局域网络(controller area network,CAN)接口进行通信,管理模块103与储能模块102之间也可以通过CAN接口通信。负载104可以包括服务器和交换机。
当然,该***除了可以是上述的柜级***之外,也可以是任何具有电源模块101和储能模块102的***,本申请实施例对此不作限定。
图3是本申请实施例提供的一种供电方法的流程图。该方法可以应用于图1所示的***。参见图3,该方法可以包括以下步骤:
步骤301:电源模块判断联动供电功能是否已开启。
需要说明的是,联动供电功能是指能够联合电源模块和储能模块为负载进行供电的功能。也即是,在联动供电功能开启的情况下,电源模块和储能模块能够同时为负载供电;在联动供电功能未开启的情况下,仅电源模块能够为负载供电。并且,在联动供电功能未开启的情况下,电源模块还可以为储能模块充电。
另外,电源模块可以接入市电,电源模块可以将市电的交流电转换为直流低压电,如可以将220V的交流电转换为48V的直流电。储能模块是用于储存电能的器件,储能模块能够在电源模块断电时为负载供电,如储能模块可以是电池、超级电容等。负载是消耗电能的器件,如负载可以是交换机、服务器等,本申请实施例对此不作限定。
其中,联动供电功能可以由管理模块通过各种方式开启。管理模块在开启联动供电功能时可以向电源模块发送第一指示信息,以指示联动供电功能已开启。管理模块在关闭联动供电功能时可以向电源模块发送第二指示信息,以指示联动供电功能已关闭。也就是说,电源模块可以在接收到第一指示信息时确定联动供电功能已开启,可以在接收到第二指示信息时确定联动供电功能未开启。
具体地,联动供电功能可以由技术人员手动开启,也可以由管理模块自动开启。例如,管理模块可以通过如下三种可能的方式来开启联动供电功能。
第一种可能的方式中,管理模块在接收到开启指令时,开启联动供电功能。
这种方式下,管理模块在开启联动供电功能后,可以在接收到关闭指令时,关闭联动供电功能。
需要说明的是,开启指令用于开启联动供电功能,关闭指令用于关闭联动供电功能。该开启指令和该关闭指令均可以由技术人员输入到管理模块中。例如,技术人员可以通过点击操作、语音操作、手势操作、体感操作等操作来在管理模块上触发该开启指令或该关闭指令。
例如,管理模块可以显示控制界面,该控制界面中可以包括控制按钮。技术人员可以通过点击该控制按钮来触发开启指令,管理模块接收到该开启指令后,可以开启联动 供电功能。并且,在管理模块开启联动供电功能后,技术人员还可以通过点击该控制按钮来触发关闭指令,管理模块接收到该关闭指令后,可以关闭联动供电功能。
第二种可能的方式中,管理模块预测负载在下一个时间周期内消耗的功率;若预测出的功率大于电源模块的限定功率,则开启联动供电功能。
这种方式下,若预测出的功率小于或等于电源模块的限定功率,则管理模块不开启联动供电功能。并且,管理模块在开启联动供电功能后,可以获取负载在当前时间周期内消耗的功率,若负载在当前时间周期内消耗的功率小于或等于电源模块的限定功率,且管理模块预测出负载在下一个时间周期内消耗的功率小于或等于电源模块的限定功率,则管理模块关闭联动供电功能。
需要说明的是,时间周期的时长可以预先进行设置。例如,可以将时间周期的时长设置为10分钟,也即每10分钟为一个时间周期。
另外,电源模块的限定功率可以预先进行设置,电源模块的限定功率可以是电源模块能输出的最大功率。电源模块的限定功率可以与电源模块的额定功率相等,或稍小于电源模块的额定功率,如电源模块的限定功率可以是电源模块的额定功率的0.9倍等。电源模块的额定功率是指电源模块能够连续输出的有效功率,也就是电源模块可以持续正常工作的最大功率。
再者,若管理模块预测出负载在下一个时间周期内消耗的功率大于电源模块的限定功率,则表明负载消耗的功率很有可能即将超出电源模块的供电能力,因而此时管理模块可以开启联动供电功能,以便后续可以联合电源模块和储能模块为负载供电。
若管理模块预测出负载在下一个时间周期内消耗的功率小于或等于电源模块的限定功率,则表明负载消耗的功率在未来一段时间内很有可能不会超出电源模块的供电能力,因而此时管理模块可以不开启联动供电功能,电源模块继续为负载供电。
若管理模块在开启联动供电功能后,负载在当前时间周期内消耗的功率小于或等于电源模块的限定功率,且管理模块预测出负载在下一个时间周期内消耗的功率小于或等于电源模块的限定功率,则表明负载不仅在当前时间消耗的功率没有超出电源模块的供电能力,而且在未来一段时间内消耗的功率很有可能也不会超出电源模块的供电能力,因而此时管理模块可以关闭联动供电功能,以便后续仅由电源模块来为负载供电。
其中,在尚未开启联动供电功能时,负载在当前时间周期内消耗的功率就是电源模块在当前时间周期内输出的功率。在开启联动供电功能时,负载在当前时间周期内消耗的功率是电源模块在当前时间周期内输出的功率与储能模块在当前时间周期内输出的功率之和。
例如,如图4所示,管理模块用于开启或关闭联动供电功能。管理模块可以是单板,其中可以包括处理器,该处理器可以是专用硬件或芯片,如可以是微处理器(包括中央处理器(central processing unit,CPU)等)、特定应用集成电路(application-specific integrated circuit,ASIC),或者可以是一个或多个用于开启或关闭联动供电功能的集成电路等。电源模块中可以包括n个电源管理***和n个电源,n个电源管理***与n个电源一一对应,n为大于或等于2的整数。每个电源管理***用于管理对应的电源,每个电源管理***可以检测其所管理的电源的输出功率,如该电源管理***可以是数字信号处理器(digital signal processor,DSP)等。储能模块中可以包括多个储能管 理***和每个储能管理***所管理的储能元件,每个储能管理***可以检测其所管理的储能元件的输出功率,如当该储能元件是电池时,该储能管理***可以是电池管理***(battery management system,BMS)。
管理模块的一个传输端与电源模块的传输端连接,管理模块的另一个传输端与储能模块的传输端连接。电源模块中的每个电源管理***可以将在当前时间周期内检测到的电源的输出功率发送给管理模块。储能模块中的每个储能管理***可以将在当前时间周期内检测到的储能元件的输出功率发送给管理模块。
在尚未开启联动供电功能时,管理模块中的处理器可以将电源模块发送的所有输出功率累加,得到负载在当前时间周期内消耗的功率。在开启联动供电功能时,管理模块中的处理器可以将电源模块和储能模块发送的所有输出功率累加,得到负载在当前时间周期内消耗的功率。
其中,管理模块预测负载在下一个时间周期内消耗的功率的操作可以为:管理模块根据下一个时间周期的时间范围,通过负载的功率消耗关系预测负载在下一个时间周期内消耗的功率;或者,管理模块根据下一个时间周期的时间范围,通过负载的业务运行关系预测负载在下一个时间周期内运行的业务,根据预测出的业务预测负载在下一个时间周期内消耗的功率。
需要说明的是,负载的功率消耗关系是分析负载过去在各个时间周期内消耗的功率得到。也即是,管理模块可以建立时间周期与负载消耗的功率的关联数据库,然后根据此关联数据库,通过学习算法建立起负载的功率消耗关系,该功率消耗关系可以预测负载在不同时间周期内消耗的功率。
该功率消耗关系可以是一个函数关系,也可以是一个神经网络模型等,本申请实施例对此不作限定。例如,当该功率消耗关系是函数关系时,该函数关系中的自变量可以是时间范围,该函数关系中的因变量可以是消耗功率,如此,将某个时间范围代入该函数关系后求得的函数值就是负载在这个时间范围内消耗的功率。又例如,当该功率消耗关系是神经网络模型时,该神经网络模型的输入可以是时间范围,该神经网络模型的输出可以是消耗功率,如此,将某个时间范围输入该神经网络模型后,该神经网络模型的输出就是负载在这个时间范围内消耗的功率。
其中,管理模块根据下一个时间周期的时间范围,通过负载的功率消耗关系预测负载在下一个时间周期内消耗的功率时,管理模块可以将下一个时间周期的时间范围输入到该功率消耗关系中,将该功率消耗关系输出的功率作为预测出的负载在下一个时间周期内消耗的功率。
需要说明的是,负载的业务运行关系是分析负载过去在各个时间周期内运行的业务得到。也即是,管理模块可以建立时间周期与负载运行的业务的关联数据库,然后根据此关联数据库,通过学习算法建立起负载的业务运行关系,该业务运行关系可以预测负载在不同时间周期内运行的业务。
该业务运行关系可以是一个函数关系,也可以是一个神经网络模型等,本申请实施例对此不作限定。例如,当该业务运行关系是函数关系时,该函数关系中的自变量可以是时间范围,该函数关系中的因变量可以是业务标识,如此,将某个时间范围代入该函数关系后求得的函数值就是负载在这个时间范围内运行的业务的业务标识。又例如,当 该业务运行关系是神经网络模型时,该神经网络模型的输入可以是时间范围,该神经网络模型的输出可以是业务标识,如此,将某个时间范围输入该神经网络模型后,该神经网络模型的输出就是负载在这个时间范围内运行的业务的业务标识。其中,业务标识用于标识业务,如可以是业务名称、代号等。
其中,管理模块根据下一个时间周期的时间范围,通过负载的业务运行关系预测负载在下一个时间周期内运行的业务时,管理模块可以将下一个时间周期的时间范围输入到该业务运行关系中,将该业务运行关系输出的业务标识所标识的业务作为预测出的负载在下一个时间周期内运行的业务。
其中,管理模块根据预测出的业务预测负载在下一个时间周期内消耗的功率时,管理模块可以根据预测出的业务的业务标识,从业务标识与消耗功率之间的对应关系中,获取对应的消耗功率作为预测出的负载在下一个时间周期内消耗的功率。
需要说明的是,业务标识与消耗功率之间的对应关系可以预先进行设置,每个业务标识对应的消耗功率是负载在运行这个业务标识所标识的业务时通常会消耗的功率。例如,管理模块预测出的业务的业务标识是业务标识1,则管理模块可以根据业务标识1,从如下表1所示的业务标识与消耗功率之间的对应关系中,获取对应的消耗功率为功率1,将功率1作为预测出的负载在下一个时间周期内消耗的功率。
表1
业务标识 | 消耗功率 |
业务标识1 | 功率1 |
业务标识2 | 功率2 |
业务标识3 | 功率3 |
…… | …… |
需要说明的是,本申请实施例仅以上表1所示的业务标识与消耗功率之间的对应关系为例进行说明,上表1并不对本申请实施例构成限定。
第三种可能的方式中,管理模块获取电源模块输出的功率和储能模块的剩余容量;若电源模块输出的功率大于电源模块的限定功率,则根据储能模块的剩余容量和第二功率,确定是否开启联动供电功能,第二功率是电源模块输出的功率与电源模块的限定功率之间的差值。
需要说明的是,电源模块的限定功率可以预先进行设置,且电源模块的限定功率可以与电源模块的额定功率相等,或稍小于电源模块的额定功率,如电源模块的限定功率可以是电源模块的额定功率的0.9倍等。
另外,如图4所示,电源模块中的每个电源管理***可以检测其所管理的电源的输出功率并发送给管理模块。管理模块中的处理器可以将电源模块发送的所有输出功率累加,得到电源模块输出的功率。
再者,储能模块的剩余容量是指若当前要使用储能模块供电,储能模块最多能够输出的电量。储能模块的剩余容量可以通过检测储能模块包括的储能元件的工作状态和剩余容量获得。例如,如图4所示,储能模块中的每个储能管理***可以检测其所管理的储能元件的工作状态和剩余容量并发送给管理模块。管理模块中的处理器可以根据储能模块发送的储能元件的工作状态,确定正常工作的储能元件,然后将所有正常工作的储 能元件的剩余容量累加,得到储能模块的剩余容量。
需要说明的是,在尚未开启联动供电功能时,电源模块输出的功率就是负载消耗的功率。若电源模块输出的功率大于电源模块的限定功率,则表明负载消耗的功率已经超出电源模块的供电能力,因而此时管理模块可以将电源模块输出的功率减去电源模块的限定功率,得到第二功率。第二功率就是负载消耗的功率中超出电源模块的供电能力的部分。之后,电源模块可以根据储能模块的剩余容量来确定储能模块是否足够提供第二功率,以据此确定是否开启联动供电功能。
其中,管理模块根据储能模块的剩余容量和第二功率,确定是否开启联动供电功能的操作可以为:若储能模块的剩余容量除以预设时长后得到的数值大于或等于第二功率,则管理模块开启联动供电功能;若储能模块的剩余容量除以预设时长后得到的数值小于第二功率,则管理模块不开启联动供电功能。
需要说明的是,预设时长可以预先进行设置。将储能模块的剩余容量除以预设时长后,可以得到储能模块的最大输出功率。储能模块的最大输出功率是在至少需要进行预设时长的供电的情况下,储能模块所能输出的最大功率。因而若储能模块的最大输出功率大于或等于第二功率,说明储能模块此时足以分担负载消耗的功率中超出电源模块的供电能力的部分,则此时可以开启联动供电功能。若储能模块的最大输出功率小第二功率,说明储能模块此时不足以分担负载消耗的功率中超出电源模块的供电能力的部分,则此时可以不开启联动供电功能。
其中,当电源模块包括电源管理***和其所管理的电源时,步骤301中可以是由电源管理***来判断联动供电功能是否已开启。
若联动供电功能未开启,则电源模块可以执行如下步骤302来为负载供电,若联动供电功能已经开启,则电源模块可以执行如下步骤303-步骤306来为负载供电。
步骤302:电源模块控制自身的输出电压为预设电压,以由电源模块为负载供电且为储能模块充电。
需要说明的是,预设电压可以预先进行设置,预设电压为电源模块的默认输出电压。预设电压高于储能模块的整定电压。储能模块的整定电压是储能模块能够维持持续不变的稳定输出时的电压。若储能模块的充电端的电压大于储能模块的整定电压,则储能模块处于充电状态;若储能模块的充电端的电压小于储能模块的整定电压,则储能模块处于放电状态。
当电源模块的输出电压高于储能模块的整定电压时,储能模块处于充电状态,此时电源模块不仅能够为负载供电,还能够为储能模块充电。如此,不仅可以保证正常为负载供电,且可以提高储能模块的容量,便于后续使用储能模块为负载供电。
其中,当电源模块包括电源管理***和其所管理的电源时,步骤302中可以是由电源管理***来控制其所管理的电源的输出电压为预设电压。
需要说明的是,本申请实施例中所使用的电源模块可以选取额定功率与负载在提供典型业务时所消耗的功率比较接近的电源模块,如可以选取额定功率是负载在提供典型业务时所消耗的功率的电源模块。这种情况下,由于负载在大部分时间都是在提供典型业务,所以负载在大部分时间消耗的功率接近电源模块的额定功率,从而不仅可以保证业务的正常运行,且相比于相关技术中选取额定功率接近负载在业务峰值时所消耗的功 率的电源模块的方案,本申请实施例中可以节省一定的电源功率,所节省的电源功率可以用于其他设备的供电,从而可以提升电源利用率。
值得注意的是,实际应用中,可以设置联动供电功能,以在联动供电功能已开启的情况下通过如下步骤303-步骤306来为负载供电,在联动供电功能未开启的情况下使用现有的方式(即步骤302)来为负载供电,从而可以实现对现有供电方法的兼容。
当然,也可以不设置联动供电功能,而是始终通过如下步骤303-步骤306来为负载供电。也就是说,可以不执行步骤301和步骤302,直接通过如下步骤303-步骤306来为负载供电,即在业务运行过程中,始终由电源模块根据负载的功率消耗情况来选择是仅自身为负载供电,还是联合自身和储能模块为负载供电。
步骤303:在电源模块为负载供电的过程中,电源模块确定电源模块输出的功率。
在电源模块为负载供电的过程中,电源模块输出的功率就是负载消耗的功率。如此,可以便于根据负载消耗的功率,确定是否需要联合电源模块和储能模块为负载供电。
其中,当电源模块包括电源管理***和其所管理的电源时,步骤303中可以是由电源管理***确定其所管理的电源输出的功率。
值得注意的是,若本申请实施例中设置有联动供电功能,则电源模块可以一直确定电源模块输出的功率并传输给管理模块,以便管理模块据此确定是否需要开启联动供电功能。在电源模块为负载供电的过程中,即在电源模块的输出电压高于储能模块的整定电压的过程中,若联动供电功能已开启,则电源模块可以检测电源模块输出的功率是否由电源模块的限定功率以下升至大于该限定功率,以便据此确定是否要调整自身的输出电压来与储能模块进行联合供电,具体过程如下所述。
步骤304:若电源模块输出的功率小于或等于电源模块的限定功率,则电源模块控制自身的输出电压为预设电压,以由电源模块为负载供电且为储能模块充电。
需要说明的是,电源模块的限定功率接近电源模块的额定功率,电源模块的额定功率是电源模块最大的输出功率。由于负载在大部分时间都是在提供典型业务,而负载在提供典型业务时所消耗的功率比较接近本申请实施例中的电源模块的额定功率,所以负载在大部分时间消耗的功率也就接近电源模块的限定功率,从而可以保证电源模块的利用率。
这种情况下,由于负载在业务峰值时所消耗的功率远大于负载在提供典型业务时所消耗的功率,所以负载在业务峰值时所消耗的功率会大于电源模块的限定功率。由于负载在大部分时间都是提供典型业务,在小部分时间会处于业务峰值,所以负载在大部分时间消耗的功率小于电源模块的限定功率,在小部分时间消耗的功率会大于电源模块的限定功率。
另外,若电源模块输出的功率小于或等于电源模块的限定功率,则表明负载消耗的功率未超出电源模块的供电能力,则电源模块可以控制自身的输出电压为预设电压,以继续为负载供电,且为储能模块充电。
例如,如图5所示,储能模块中包括充电电路、放电电路和储能元件。储能元件的整定电压小于预设电压,如储能元件的整定电压可以是52V,预设电压可以是54.5V。电源模块的默认输出电压为预设电压,由于预设电压大于储能元件的整定电压,所以储能模块处于充电状态,此时电源模块通过充电电路为储能元件充电,且为负载供电。
其中,当电源模块包括n个电源管理***和每个电源管理***所管理的电源时,步骤304中可以是当n个电源管理***中的任意一个电源管理***检测到其所管理的电源输出的功率小于或等于第一功率时,控制所管理的电源的输出电压维持为默认电压。
需要说明的是,第一功率是电源模块的限定功率除以n得到。由于电源模块的负载均衡特性,电源模块中的n个电源输出的功率相同或相近,所以对于该n个电源中的任意一个电源来说,如果这个电源输出的功率小于或等于第一功率,则电源模块输出的功率就应该是小于或等于电源模块的限定功率的,因而此时可以控制所管理的电源的输出电压维持为默认电压,以继续为负载供电,且为储能模块充电。
步骤305:若电源模块输出的功率由电源模块的限定功率以下升至大于该限定功率,则电源模块控制自身的输出电压低于储能模块的整定电压,以由电源模块和储能模块为负载供电。
在仅由电源模块为负载供电的过程中,若负载消耗的功率增大至大于电源模块的限定功率,则为满足负载所需,电源模块输出的功率在短时间内也会增大至大于电源模块的限定功率。当负载消耗的功率长时间大于电源模块的限定功率时,若还是仅由电源模块为负载供电,则会因电源模块的供电能力不足而出现掉电现象。
在本申请实施例中,若电源模块输出的功率由电源模块的限定功率以下升至大于该限定功率,表明负载消耗的功率从之前在电源模块的供电能力以内变为超出电源模块的供电能力,则可以联合电源模块和储能模块为负载供电,以保证在负载消耗的功率超出电源模块的供电能力的情况下不会掉电,保证负载的正常运行。如此,可以在因业务峰值而导致负载消耗的功率过大时,通过电源模块和储能模块联合实现可靠供电,从而可以保证即使在业务峰值时业务性能也能不受影响。并且,本申请实施例中,在电源模块供电的情况下,也支持储能模块的同步供电,从而可以提高储能模块的利用率。
需要说明的是,当电源模块的输出电压低于储能模块的整定电压时,储能模块处于放电状态,此时储能模块可以自动分担负载消耗的功率中超出电源模块的供电能力的部分。也就是说,本申请实施例中通过控制电源模块的输出电压低于储能模块的整定电压,可以保证负载消耗的功率中超出电源模块的供电能力的部分自动由储能模块来提供。
例如,如图5所示,储能元件的整定电压小于预设电压,如储能元件的整定电压可以是52V,预设电压可以是54.5V。电源模块的默认输出电压为预设电压。当电源模块输出的功率由电源模块的限定功率以下升至大于该限定功率时,电源模块控制自身的输出电压降低,直至低至储能元件的整定电压以下。此时,由于电源模块的输出电压小于储能元件的整定电压,所以储能模块处于放电状态,此时储能元件通过放电电路为负载供电,且电源模块也为负载供电。
其中,当电源模块包括n个电源管理***和每个电源管理***所管理的电源时,步骤305中可以是当n个电源管理***中的任意一个电源管理***检测到其所管理的电源输出的功率由第一功率以下升至大于第一功率时,控制所管理的电源的输出电压低于储能模块的整定电压。
需要说明的是,由于电源模块的负载均衡特性,电源模块中的n个电源输出的功率相同或相近,所以对于该n个电源中的任意一个电源来说,如果这个电源输出的功率由第一功率以下升至大于第一功率,则电源模块输出的功率就应该是由电源模块的限定功 率以下升至大于该限定功率的,因而此时可以控制所管理的电源的输出电压低于储能模块的整定电压,以使储能模块处于放电状态。
进一步地,为了保证供电可靠性,当电源模块输出的功率由电源模块的限定功率以下升至大于该限定功率时,在电源模块控制自身的输出电压低于储能模块的整定电压之前,电源模块还可以向管理模块发送第三指示信息,以指示将要开始联合电源模块和储能模块来供电。此时管理模块可以根据储能模块的剩余容量和电源模块的限定功率,确定功率封顶值。之后,在电源模块控制自身的输出电压低于储能模块的整定电压的过程中,即在电源模块和储能模块为负载供电的过程中,管理模块可以按照该功率封顶值限制负载消耗的功率。
需要说明的是,在电源模块和储能模块为负载供电的过程中,电源模块和储能模块输出的总功率就是负载消耗的功率。
另外,管理模块按照该功率封顶值限制负载消耗的功率时,可以是在电源模块和储能模块输出的总功率大于该功率封顶值时,执行功率封顶操作。功率封顶操作是指对负载设置功率消耗上限的技术。功率封顶操作用于将负载消耗的功率限制在该功率封顶值以下。如此,可以保证供电安全,避免***掉电。
值得说明的是,本申请实施例中是结合储能模块和电源模块的供电能力来设置功率封顶值,相比于相关技术中仅依据电源模块的供电能力来进行功率封顶的机制,本申请实施例可以提高***的供电能力,使得***得以超频运行,保证业务性能不受影响。
其中,管理模块根据储能模块的剩余容量和电源模块的限定功率,确定功率封顶值时,可以先获取储能模块的最大输出功率,储能模块的最大输出功率是将储能模块的剩余容量除以预设时长得到;将储能模块的最大输出功率与电源模块的限定功率相加,得到功率封顶值。
需要说明的是,将储能模块的剩余容量除以预设时长后,可以得到储能模块的最大输出功率。储能模块的最大输出功率是在至少需要进行预设时长的供电的情况下,储能模块所能输出的最大功率。因而将储能模块的最大输出功率与电源模块的限定功率相加,就可以得到储能模块和电源模块联合后所能输出的最大功率,将此作为功率封顶值。
进一步地,在步骤305之后,即在电源模块控制自身的输出电压低于储能模块的整定电压之后,还可以执行如下步骤306。
步骤306:若电源模块输出的功率由电源模块的限定功率以上降至小于该限定功率,则电源模块控制自身的输出电压高于储能模块的整定电压,以由电源模块为负载供电且为储能模块充电。
若电源模块输出的功率由电源模块的限定功率以上降至小于该限定功率,表明负载消耗的功率很有可能已经从之前超出电源模块的供电能力变为在电源模块的供电能力以内,则可以由电源模块为负载供电且为储能模块充电。如此,不仅可以保证正常为负载供电,且可以提高储能模块的容量,便于后续使用储能模块为负载供电。
需要说明的是,电源模块控制自身的输出电压高于储能模块的整定电压时,电源模块可以恢复自身的默认输出电压,即将自身的输出电压恢复为预设电压。
另外,当电源模块的输出电压高于储能模块的整定电压时,储能模块处于充电状态,此时电源模块为负载供电,且为储能模块充电。
例如,如图5所示,储能元件的整定电压小于预设电压,如储能元件的整定电压可以是52V,预设电压可以是54.5V。电源模块的默认输出电压为预设电压。当电源模块输出的功率由电源模块的限定功率以上降至小于该限定功率时,电源模块控制自身的输出电压提高,直至高至储能元件的整定电压以上,如电源模块可以直接将自身的输出电压恢复为预设电压。此时,由于电源模块的输出电压大于储能元件的整定电压,所以储能模块处于充电状态,此时电源模块通过充电电路为储能元件充电,且为负载供电。
其中,当电源模块包括n个电源管理***和每个电源管理***所管理的电源时,步骤306中可以是当n个电源管理***中的任意一个电源管理***检测到其所管理的电源输出的功率由第一功率以上降至小于第一功率时,控制所管理的电源的输出电压高于储能模块的整定电压。
需要说明的是,由于电源模块的负载均衡特性,电源模块中的n个电源输出的功率相同或相近,所以对于该n个电源中的任意一个电源来说,如果这个电源输出的功率由第一功率以上降至小于第一功率,则电源模块输出的功率就应该是由电源模块的限定功率以上降至小于该限定功率的,因而此时可以控制所管理的电源的输出电压高于储能模块的整定电压,以重新为储能模块充电,且为负载供电。
值得注意的是,在为负载供电的过程中,若电源模块断电,则不论当前是电源模块为储能模块充电,还是电源模块和储能模块为负载供电,后续都是直接由储能模块为负载供电,从而可以保证供电可靠性。例如,如图5所示,当电源模块断电时,电源模块的输出电压为0,因而电源模块的输出电压将会小于储能元件的整定电压,储能模块会处于放电状态,此时储能元件通过放电电路为负载供电。
为了便于理解,下面结合图6来对本申请实施例提供的供电方法进行举例说明。图6是本申请实施例提供的一种功率-时间曲线图,用于展示负载消耗的功率随时间的变化趋势。
在开启联动供电功能后,根据储能模块的剩余容量和电源模块的限定功率确定功率封顶值。从电源模块的限定功率到该功率封顶值之间的功率区间是电源模块和储能模块的联合供电区。
具体地,当负载消耗的功率小于或等于电源模块的限定功率时,电源模块为负载供电,即在图6中的a1时间之前、a2时间-a3时间、a4时间-a5时间、a6时间之后,仅由电源模块为负载供电。当负载消耗的功率大于电源模块的限定功率时,电源模块和储能模块为负载供电,即在图6中的a1时间-a2时间、a3时间-a4时间、a5时间-a6时间,由电源模块和储能模块联合为负载供电。
其中,图6中所示的阴影区域用于指示储能模块输出的电量,每个阴影区域的面积是在每个阴影区域对应的时间段内储能模块输出的电量。可知,在a5时间-a6时间,储能模块输出的电量最多。
在本申请实施例中,在电源模块为负载供电的过程中,确定电源模块输出的功率。之后,若电源模块输出的功率由电源模块的限定功率以下升至大于该限定功率,则控制电源模块的输出电压低于储能模块的整定电压,以由电源模块和储能模块为负载供电,保证负载的正常运行。如此,可以在因业务峰值而导致负载消耗的功率过大时,通过电源模块和储能模块联合实现可靠供电,从而可以保证即使在业务峰值时业务性能也能不 受影响。
图7是本申请实施例提供的一种供电***的示意图。参见图7,该***包括电源模块701和储能模块702,电源模块701的输出端与储能模块702的充电端连接,电源模块701的输出端和储能模块702的放电端均与负载连接,电源模块701接入市电。
电源模块701,用于在电源模块701为负载供电的过程中,确定电源模块701输出的功率;
电源模块701,还用于在电源模块701输出的功率由电源模块701的限定功率以下升至大于限定功率时,控制电源模块701的输出电压低于储能模块702的整定电压,以由电源模块701和储能模块702为负载供电。
可选地,电源模块701还用于:
在已开启联动供电功能,且电源模块701输出的功率由电源模块701的限定功率以下升至大于限定功率时,控制电源模块701的输出电压低于储能模块702的整定电压。
可选地,参见图8,该***还包括管理模块703,管理模块703的一个传输端与电源模块701的传输端连接,管理模块703的另一个传输端与储能模块702的传输端连接;
管理模块703,用于预测负载在下一个时间周期内消耗的功率,在预测出的功率大于电源模块701的限定功率时,开启联动供电功能;或者,用于在电源模块701输出的功率大于电源模块701的限定功率时,根据储能模块702的剩余容量和第二功率,确定是否开启联动供电功能,第二功率是电源模块701输出的功率与电源模块701的限定功率之间的差值;
管理模块703,还用于在已开启联动供电功能时,向电源模块701发送第一指示信息;
电源模块701,还用于在接收到管理模块703发送的第一指示信息时,确定联动供电功能已开启。
可选地,电源模块701包括n个电源管理***和n个电源,n个电源管理***与n个电源一一对应,n个电源管理***中的每个电源管理***用于管理对应的电源,n为大于或等于2的整数;
n个电源管理***中的每个电源管理***,用于在所管理的电源输出的功率由第一功率以下升至大于第一功率时,控制所管理的电源的输出电压低于储能模块702的整定电压,第一功率是电源模块701的限定功率除以n得到。
可选地,电源模块701还用于:
在电源模块701输出的功率由限定功率以上降至小于限定功率时,控制电源模块701的输出电压高于储能模块702的整定电压,以由电源模块701为负载供电且为储能模块702充电。
可选地,参见图8,该***还包括管理模块703,管理模块703的一个传输端与电源模块701的传输端连接,管理模块703的另一个传输端与储能模块702的传输端连接;
电源模块701,用于在电源模块701输出的功率由电源模块701的限定功率以下升至大于限定功率时,向管理模块703发送第三指示信息;
管理模块703,用于在接收到电源模块701发送的第三指示信息时,根据储能模块 702的剩余容量和电源模块701的限定功率确定功率封顶值,并按照功率封顶值限制负载消耗的功率。
在本申请实施例中,在电源模块为负载供电的过程中,确定电源模块输出的功率。之后,若电源模块输出的功率由电源模块的限定功率以下升至大于该限定功率,则控制电源模块的输出电压低于储能模块的整定电压,以由电源模块和储能模块为负载供电,保证负载的正常运行。如此,可以在因业务峰值而导致负载消耗的功率过大时,通过电源模块和储能模块联合实现可靠供电,从而可以保证即使在业务峰值时业务性能也能不受影响。
需要说明的是:上述供电***实施例与供电方法实施例属于同一构思,其中的电源模块701、储能模块702和管理模块703所执行的操作的具体实现过程均可以参考上述图3所示的供电方法实施例,这里不再赘述。
图9是本申请实施例提供的一种电源设备的结构示意图。该电源设备可以是图1中所示的电源模块101,也可以是图3实施例中所述的电源模块,还可以是图7实施例中所述的电源模块701。参见图9,该电源设备可以包括电源管理***901和电源902。该电源管理***901可以以单板的形式实现。该电源管理***901可以包括接口卡9011、处理器9012和存储器9013。
接口卡9011用于实现与其他设备的对接功能,外部数据可以进入接口卡9011并被传输到处理器9012,处理器9012处理后的数据可以从接口卡9011发出。
处理器9012可以是微处理器(包括中央处理器(central processing unit,CPU)等)、特定应用集成电路(application-specific integrated circuit,ASIC),或者可以是一个或多个用于控制本申请方案程序执行的集成电路。
存储器9013可以是只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、电可擦可编程只读存储器(electrically erasable programmable read-Only memory,EEPROM)、磁盘存储介质或者其它磁存储设备,或者是能够用于存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其它介质,但不限于此。
其中,存储器9013用于存储执行本申请方案的程序代码910,处理器9012用于执行存储器9013中存储的程序代码910。该电源管理***902可以通过处理器9012以及存储器9013中的程序代码910,来实现上文图3实施例中由电源模块执行的操作。
图10是本申请实施例提供的一种管理设备的结构示意图。该管理设备可以是图1中所示的管理模块103,也可以是图3实施例中所述的管理模块,还可以是图7实施例中所述的管理模块703。该管理设备可以以单板的形式实现。参见图10,该管理设备可以包括接口卡1001、处理器1002和存储器1003。
接口卡1001用于实现与其他设备的对接功能,外部数据可以进入接口卡1001并被传输到处理器1002,处理器1002处理后的数据可以从接口卡1001发出。
处理器1002可以是微处理器(包括CPU等)、ASIC,或者可以是一个或多个用于控制本申请方案程序执行的集成电路。
存储器1003可以是ROM、RAM、EEPROM、磁盘存储介质或者其它磁存储设备,或者是能够用于存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任 何其它介质,但不限于此。
其中,存储器1003用于存储执行本申请方案的程序代码1010,处理器1002用于执行存储器1003中存储的程序代码1010。该管理设备可以通过处理器1002以及存储器1003中的程序代码1010,来实现上文图3实施例中由管理模块执行的操作。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意结合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络或其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如:同轴电缆、光纤、数据用户线(Digital Subscriber Line,DSL))或无线(例如:红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质,或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如:软盘、硬盘、磁带)、光介质(例如:数字通用光盘(Digital Versatile Disc,DVD))或半导体介质(例如:固态硬盘(Solid State Disk,SSD))等。
以上所述为本申请提供的实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
Claims (14)
- 一种供电方法,其特征在于,应用于包括电源模块、储能模块和负载的***,所述电源模块的输出端与所述储能模块的充电端连接,所述电源模块的输出端和所述储能模块的放电端均与所述负载连接,所述电源模块接入市电,所述方法包括:在所述电源模块为所述负载供电的过程中,确定所述电源模块输出的功率;若所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率,则控制所述电源模块的输出电压低于所述储能模块的整定电压,以由所述电源模块和所述储能模块为所述负载供电。
- 如权利要求1所述的方法,其特征在于,所述若所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率,则控制所述电源模块的输出电压低于所述储能模块的整定电压,包括:若已开启联动供电功能,且所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率,则控制所述电源模块的输出电压低于所述储能模块的整定电压。
- 如权利要求2所述的方法,其特征在于,所述方法还包括:若接收到管理模块发送的第一指示信息,则确定所述联动供电功能已开启,所述管理模块的一个传输端与所述电源模块的传输端连接,所述管理模块的另一个传输端与所述储能模块的传输端连接;其中,所述第一指示信息是所述管理模块在预测出所述负载在下一个时间周期内消耗的功率大于所述电源模块的限定功率时发送的;或者所述第一指示信息是所述管理模块在所述电源模块输出的功率大于所述电源模块的限定功率,且根据所述储能模块的剩余容量和第二功率确定开启所述联动供电功能时发送的,所述第二功率是所述电源模块输出的功率与所述电源模块的限定功率之间的差值。
- 如权利要求1-3任一所述的方法,其特征在于,所述电源模块包括n个电源管理***和n个电源,所述n个电源管理***与所述n个电源一一对应,所述n个电源管理***中的每个电源管理***用于管理对应的电源,所述n为大于或等于2的整数;所述若所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率,则控制所述电源模块的输出电压低于所述储能模块的整定电压,包括:对于所述n个电源中的任意一个电源,若所述一个电源输出的功率由第一功率以下升至大于所述第一功率,则控制所述一个电源的输出电压低于所述储能模块的整定电压,所述第一功率是所述电源模块的限定功率除以n得到。
- 如权利要求1所述的方法,其特征在于,所述控制所述电源模块的输出电压低于所述储能模块的整定电压之后,所述方法还包括:若所述电源模块输出的功率由所述限定功率以上降至小于所述限定功率,则控制所 述电源模块的输出电压高于所述储能模块的整定电压,以由所述电源模块为所述负载供电且为所述储能模块充电。
- 如权利要求1所述的方法,其特征在于,所述方法还包括:若所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率,则向管理模块发送第三指示信息,由所述管理模块根据所述储能模块的剩余容量和所述电源模块的限定功率确定功率封顶值,并按照所述功率封顶值限制所述负载消耗的功率,所述管理模块的一个传输端与所述电源模块的传输端连接,所述管理模块的另一个传输端与所述储能模块的传输端连接。
- 一种供电***,其特征在于,所述***包括电源模块和储能模块,所述电源模块的输出端与所述储能模块的充电端连接,所述电源模块的输出端和所述储能模块的放电端均与负载连接,所述电源模块接入市电;所述电源模块,用于在所述电源模块为所述负载供电的过程中,确定所述电源模块输出的功率;所述电源模块,还用于在所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率时,控制所述电源模块的输出电压低于所述储能模块的整定电压,以由所述电源模块和所述储能模块为所述负载供电。
- 如权利要求7所述的***,其特征在于,所述电源模块还用于:在已开启联动供电功能,且所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率时,控制所述电源模块的输出电压低于所述储能模块的整定电压。
- 如权利要求8所述的***,其特征在于,所述***还包括管理模块,所述管理模块的一个传输端与所述电源模块的传输端连接,所述管理模块的另一个传输端与所述储能模块的传输端连接;所述管理模块,用于预测所述负载在下一个时间周期内消耗的功率,在预测出的功率大于所述电源模块的限定功率时,开启所述联动供电功能;或者,用于在所述电源模块输出的功率大于所述电源模块的限定功率时,根据所述储能模块的剩余容量和第二功率,确定是否开启所述联动供电功能,所述第二功率是所述电源模块输出的功率与所述电源模块的限定功率之间的差值;所述管理模块,还用于在已开启所述联动供电功能时,向所述电源模块发送第一指示信息;所述电源模块,还用于在接收到所述管理模块发送的所述第一指示信息时,确定所述联动供电功能已开启。
- 如权利要求7-9任一所述的***,其特征在于,所述电源模块包括n个电源管理***和n个电源,所述n个电源管理***与所述n个电源一一对应,所述n个电源管 理***中的每个电源管理***用于管理对应的电源,所述n为大于或等于2的整数;所述n个电源管理***中的每个电源管理***,用于在所管理的电源输出的功率由第一功率以下升至大于所述第一功率时,控制所管理的电源的输出电压低于所述储能模块的整定电压,所述第一功率是所述电源模块的限定功率除以n得到。
- 如权利要求7所述的***,其特征在于,所述电源模块还用于:在所述电源模块输出的功率由所述限定功率以上降至小于所述限定功率时,控制所述电源模块的输出电压高于所述储能模块的整定电压,以由所述电源模块为所述负载供电且为所述储能模块充电。
- 如权利要求7所述的***,其特征在于,所述***还包括管理模块,所述管理模块的一个传输端与所述电源模块的传输端连接,所述管理模块的另一个传输端与所述储能模块的传输端连接;所述电源模块,用于在所述电源模块输出的功率由所述电源模块的限定功率以下升至大于所述限定功率时,向管理模块发送第三指示信息;所述管理模块,用于在接收到所述电源模块发送的第三指示信息时,根据所述储能模块的剩余容量和所述电源模块的限定功率确定功率封顶值,并按照所述功率封顶值限制所述负载消耗的功率。
- 一种电源设备,其特征在于,所述电源设备包括电源管理***和电源,所述电源管理***用于管理电源;所述电源管理***包括接口卡、处理器和存储器;所述处理器通过所述接口卡发送数据或接收数据;所述存储器用于存储支持所述电源管理***执行如权利要求1-6任意一项所述的方法的程序,以及存储用于实现如权利要求1-6任意一项所述的方法所涉及的数据;所述处理器被配置为用于执行所述存储器中存储的程序。
- 一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,所述指令由处理器加载并执行如权利要求1-6任意一项所述的方法。
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