WO2024007166A1 - 储能系统、储能系统热管理的方法和装置 - Google Patents

储能系统、储能系统热管理的方法和装置 Download PDF

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Publication number
WO2024007166A1
WO2024007166A1 PCT/CN2022/103965 CN2022103965W WO2024007166A1 WO 2024007166 A1 WO2024007166 A1 WO 2024007166A1 CN 2022103965 W CN2022103965 W CN 2022103965W WO 2024007166 A1 WO2024007166 A1 WO 2024007166A1
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WIPO (PCT)
Prior art keywords
battery
water pump
energy storage
power
storage system
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Ceased
Application number
PCT/CN2022/103965
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English (en)
French (fr)
Inventor
金秋
王学辉
陈小波
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to CN202280095499.1A priority Critical patent/CN119137785A/zh
Priority to EP22949754.0A priority patent/EP4451416A4/en
Priority to PCT/CN2022/103965 priority patent/WO2024007166A1/zh
Publication of WO2024007166A1 publication Critical patent/WO2024007166A1/zh
Priority to US18/756,727 priority patent/US20240347804A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4221—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells with battery type recognition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J9/062—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 AC powered loads
    • 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
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to an energy storage system, a method and device for thermal management of an energy storage system.
  • the energy storage system includes multiple batteries connected in series and parallel.
  • the battery cells in the battery will experience occasional thermal runaway due to mechanical, environmental or manufacturing defects.
  • the heat released will be transferred to the surrounding battery cells. If not handled in time, it may eventually occur. This leads to heat diffusion throughout the energy storage system, causing secondary disasters such as combustion and explosion, which has a major impact on the safe and reliable operation of the energy storage system.
  • This application provides an energy storage system and a method and device for thermal management of the energy storage system, which can accurately cool down the battery where the thermal runaway battery cell is located, and can prevent the thermal diffusion of the battery from spreading to other batteries, thereby ensuring energy storage System security.
  • an energy storage system including a plurality of batteries and a liquid cooling system; the liquid cooling system includes a plurality of water pumps corresponding to the plurality of batteries and a thermal management unit; the thermal management unit is used to determine thermal The first battery where the out-of-control battery cell is located is located, and the first water pump corresponding to the first battery is turned on to cool down the first battery.
  • each battery of the energy storage system is equipped with a corresponding water pump, so that when a battery cell inside the battery experiences thermal runaway, it is only necessary to control the thermal management unit of the liquid cooling system to turn on the corresponding water pump of the battery, that is, The battery can be cooled accurately to prevent thermal diffusion of the battery from spreading to other batteries, thus improving the safety of the entire energy storage system.
  • the battery where the thermal runaway battery cell is located can be accurately cooled, the power consumption of the liquid cooling system can be reduced.
  • the energy storage system further includes a battery management system; the thermal management unit is configured to receive first indication information sent by the battery management system, and the first indication information is used to indicate the first Battery; determine the first battery according to the first indication information.
  • the thermal management unit can determine the battery where the battery cell that has experienced thermal runaway is located through the first indication information, thereby turning on the water pump corresponding to the battery and accurately cooling the battery, which can ensure the safety of the energy storage system and Reduce power consumption of liquid cooling systems.
  • the first indication information includes location information or identification information of the first battery.
  • the battery management system is configured to receive abnormal indication information, and the abnormal indication information is used to indicate the existence of the thermal runaway battery cell; and to determine the thermal runaway battery cell according to the abnormal indication information.
  • the first battery where the body is located is located, and the first indication information is sent to the thermal management unit.
  • the battery management system as the control center of the energy storage system, can determine the thermal runaway battery cell of the energy storage system based on the abnormal indication information, and can determine the location of the thermal runaway battery cell based on the object that sends the abnormal indication information.
  • battery thereby instructing the thermal management unit of the liquid cooling system to turn on the water pump corresponding to the battery to accurately cool the battery, preventing thermal diffusion of the battery from spreading to other batteries, improving the safety of the energy storage system and reducing the cost of the liquid cooling system of power consumption.
  • the thermal management unit is further configured to receive second indication information sent by the battery management system, where the second indication information includes power information of the first water pump; the thermal management unit is further configured to receive The second indication information adjusts the power of the first water pump.
  • the power of the water pump is adjustable, and the thermal management unit can adjust the power of the first water pump according to the instructions of the battery management system to achieve a balance between cooling effect and power consumption to further save power consumption of the liquid cooling system.
  • the battery management system is further configured to determine the power of the first water pump and send the second indication information to the thermal management unit.
  • the battery management system can determine the power of the first water pump or formulate a power plan for the first water pump based on manufacturer requirements or actual conditions, such as the severity of thermal runaway, to save power consumption of the liquid cooling system.
  • the battery management system is configured to obtain the operating status of the thermally runaway battery cell, and determine the power of the first water pump according to the operating status of the thermally runaway battery cell.
  • the battery management system can adjust the power of the first water pump according to the operating status of the thermally runaway battery cell to achieve a balance between cooling effect and power consumption to maximize the power consumption of the liquid cooling system.
  • the battery management system is configured to determine the power of the first water pump according to an on-time period of the first water pump.
  • the battery management system can set different powers during the opening time period of the first water pump according to the state pattern of the battery cell after thermal runaway to achieve a balance between the cooling effect and power consumption, thereby saving the time of the liquid cooling system. power consumption.
  • the time period includes a plurality of sub-time periods, wherein the power of the first water pump is different in at least two of the sub-time periods; or the power of the first water pump gradually increases within the time period. reduce.
  • the start-up time period of the first water pump is divided into multiple sub-time periods, and the first water pump is set to different powers in different sub-time periods, which can be reduced step by step with the sub-time periods as boundaries, or The power of the first water pump is gradually reduced throughout the startup period, thereby saving power consumption of the liquid cooling system.
  • the battery further includes a detector for collecting the operating status of the battery cells in the battery, and determining that the thermal runaway battery cell exists based on the operating status, and providing information to the battery.
  • the management system sends the abnormality indication information.
  • the battery management system can determine which battery has a thermal runaway battery cell based on the abnormal indication information reported by the detector, thereby accurately cooling the battery cell. To reduce the power consumption of the liquid cooling system.
  • the detector includes at least one of an odor sensor, a smoke sensor, and an electrolyte leakage sensor.
  • diversified sensors are added to the battery, which allows the battery management system to determine whether there is a thermal runaway battery cell in more ways to quickly respond to the abnormal situation, thereby improving the safety of the energy storage system.
  • the power supply system of the energy storage system stops supplying power to the liquid cooling system when the thermal runaway battery cell exists; the energy storage system also includes a backup power supply for the power supply. After the system stops supplying power to the liquid cooling system, it supplies power to the thermal management unit and the first water pump.
  • the backup power supply supplies power to the thermal management unit and the first water pump through a DC power supply circuit; or the backup power supply is connected to the AC power supply circuit of the liquid cooling system through an inverter to provide power to all The liquid cooling system supplies power, wherein the inverter is used to convert the DC power of the backup power supply into the AC power required by the liquid cooling system.
  • the backup power supply can supply power to the thermal management unit and the first water pump corresponding to the first battery where the battery cell that has thermal runaway is located through the DC power supply circuit, which not only ensures the safety of the liquid cooling system, but also reduces the Configuration capacity of backup power supply, saving cost and space.
  • a method for thermal management of an energy storage system includes a plurality of batteries and a liquid cooling system; the liquid cooling system includes a plurality of water pumps corresponding to the plurality of batteries and a thermal management method. unit; the method includes: the thermal management unit determines the first battery where the thermally runaway battery cell is located; the thermal management unit turns on the first water pump corresponding to the first battery to pump the first water pump to the first battery. The battery cools down.
  • each battery in the energy storage system is equipped with a corresponding water pump, so that when the battery cells inside the battery undergo thermal runaway, the thermal management unit only needs to turn on the corresponding water pump to accurately conduct the battery Cooling down can prevent heat diffusion in the battery from spreading to other batteries, thereby ensuring the safety of the energy storage system.
  • the thermal management unit only needs to turn on the corresponding water pump to accurately conduct the battery Cooling down can prevent heat diffusion in the battery from spreading to other batteries, thereby ensuring the safety of the energy storage system.
  • the battery where the thermal runaway battery cell is located can be accurately cooled, the power consumption of the liquid cooling system can be reduced.
  • the thermal management unit determining the first battery where the thermally runaway battery cell is located includes: the thermal management unit receiving first indication information sent by the battery management system, the first indication information being used to indicate the first battery; the thermal management unit determines the first battery according to the first indication information.
  • the thermal management unit can determine the battery where the battery cell that has experienced thermal runaway is located through the first indication information, thereby turning on the water pump corresponding to the battery and accurately cooling the battery, which can ensure the safety of the energy storage system and Reduce power consumption of liquid cooling systems.
  • the first indication information includes location information or identification information of the first battery.
  • the thermal management unit receives second indication information, the second indication information includes power information of the first water pump; the thermal management unit adjusts the first water pump according to the second indication information. The power of the water pump.
  • the power of the water pump is adjustable, and the thermal management unit can adjust the power of the first water pump according to the instructions of the battery management system to achieve a balance between cooling effect and power consumption to further save power consumption of the liquid cooling system.
  • a method for thermal management of an energy storage system includes a plurality of batteries, a liquid cooling system and a battery management system; the liquid cooling system includes a plurality of batteries corresponding to the plurality of batteries.
  • the first battery where the thermally runaway battery cell is located; the battery management system sends first indication information to the thermal management unit, and the first indication information is used to instruct the first battery so that the thermal
  • the management unit turns on the first water pump corresponding to the first battery to cool down the first battery.
  • the battery management system as the control center of the energy storage system, can determine the thermal runaway battery cell of the energy storage system based on the abnormal indication information, and can determine the location of the thermal runaway battery cell based on the object that sends the abnormal indication information.
  • battery thereby instructing the thermal management unit of the liquid cooling system to turn on the water pump corresponding to the battery to accurately cool the battery, preventing thermal diffusion of the battery from spreading to other batteries, improving the safety of the energy storage system and reducing the cost of the liquid cooling system of power consumption.
  • the first indication information includes location information or identification information of the first battery.
  • the method further includes: the battery management system determining the power of the first water pump; the battery management system sending the second indication information to the thermal management unit, the second indication The information includes power information of the first water pump.
  • the battery management system can determine the power of the first water pump or formulate a power plan for the first water pump based on manufacturer requirements or actual conditions, such as the severity of thermal runaway, to save power consumption of the liquid cooling system.
  • the battery management system determining the power of the first water pump includes: the battery management system obtains the operating status of the thermally runaway battery cell, and determines the power of the thermally runaway battery cell according to the operating status of the thermally runaway battery cell. The operating status determines the power of the first water pump.
  • the battery management system can adjust the power of the first water pump according to the operating status of the thermally runaway battery cell to achieve a balance between cooling effect and power consumption to maximize the power consumption of the liquid cooling system.
  • the battery management system determines the power of the first water pump based on an on-time period of the first water pump.
  • the battery management system can set different powers during the opening period of the first water pump according to the state pattern of the battery cell after thermal runaway to achieve a balance between the cooling effect and power consumption, thereby saving the time of the liquid cooling system. power consumption.
  • the time period includes a plurality of sub-time periods, wherein the power of the first water pump is different in at least two of the sub-time periods; or the power of the first water pump gradually increases within the time period. reduce.
  • the start-up time period of the first water pump is divided into multiple sub-time periods, and the first water pump is set to different powers in different sub-time periods, which can be reduced step by step with the sub-time periods as boundaries, or The power of the first water pump is gradually reduced throughout the startup period, thereby saving power consumption of the liquid cooling system.
  • a device for thermal management of an energy storage system including a processor and a memory.
  • the memory is used to store a program.
  • the processor is used to call and run the program from the memory to execute the following steps.
  • a method for thermal management of an energy storage system in any possible implementation of the second aspect and the third aspect.
  • a computer-readable storage medium including a computer program.
  • the computer program When the computer program is run on a computer, it causes the computer to execute any of the possible implementations of the second aspect and the third aspect. Methods for thermal management of energy storage systems.
  • each battery of the energy storage system is equipped with a corresponding water pump, so that when the battery cells inside the battery undergo thermal runaway, it only needs to control the thermal management unit of the liquid cooling system to turn on the corresponding water pump, and then the corresponding water pump can be controlled.
  • the battery's precise cooling can prevent thermal diffusion of the battery from spreading to other batteries, thus ensuring the safety of the energy storage system.
  • the battery where the thermal runaway battery cell is located can be accurately cooled, the power consumption of the liquid cooling system can be reduced.
  • Figure 1 is a schematic architectural diagram of an energy storage system disclosed in an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of another energy storage system disclosed in an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of yet another energy storage system disclosed in an embodiment of the present application.
  • Figure 4 is a schematic connection diagram of a liquid cooling system power supply method disclosed in an embodiment of the present application.
  • Figure 5 is a schematic connection diagram of another power supply method of a liquid cooling system disclosed in an embodiment of the present application.
  • Figure 6 is a schematic flow chart of a method for thermal management of an energy storage system disclosed in an embodiment of the present application.
  • Figure 7 is a schematic flow chart of another thermal management method for an energy storage system disclosed in an embodiment of the present application.
  • Figure 8 is a schematic structural block diagram of an energy storage system thermal management device disclosed in an embodiment of the present application.
  • FIG. 1 is an architectural diagram of the energy storage system 10 provided by this application.
  • the energy storage system 10 may include a battery 11 , a detector 12 , a battery management system 13 and a liquid cooling system 14 .
  • the liquid cooling system 14 may include a thermal management unit 141, a compressor 142, a water pump 143 and a fan 144.
  • the detector 12 may be a temperature sensor for detecting the temperature of the battery 11 .
  • a signal can be sent to the battery management system 13.
  • the battery management system 13 After receiving the signal, the battery management system 13 sends a corresponding cooling command to the liquid cooling system 14, and the liquid cooling system 14 starts to cycle. Cool down the battery 11.
  • the liquid cooling system 14 may include a thermal management unit 141, a compressor 142, a water pump 143, and a fan 144.
  • the thermal management unit 141 can be used to control the cooperation of various components in the liquid cooling system 14 to execute the cooling instructions of the battery management system 13, thereby cooling the battery 11.
  • Compressor 142 is a driven fluid machine that elevates low-pressure gas to high pressure. It is the heart of the refrigeration system. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, and drives the piston to compress it through the operation of the motor. The high-temperature and high-pressure refrigerant liquid is discharged to the exhaust pipe to provide power for the refrigeration cycle.
  • the outlet of the water pump 143 can be connected to the battery 11, and the coolant flowing out can be used to cool the battery 11.
  • the water pump 143 is the power source of the entire liquid cooling system and can control the liquid flow rate at the outlet to ensure sufficient coolant flow rate for the battery 11 and ensure the consistency of the supply flow rate.
  • the fan 144 can also be called a cooling fan, and can cool down the liquid in the coolant pipe in the liquid cooling system 14 .
  • energy storage systems in the market are usually large-capacity energy storage systems, which include multiple batteries connected in series and parallel.
  • the battery cells in the battery will experience occasional thermal runaway due to mechanical, environmental or manufacturing defects. The heat released will be transferred to the surrounding battery cells. If not handled in time, the entire storage battery may eventually be damaged. Heat diffusion occurs in the energy system, causing secondary disasters such as combustion and explosion, which has a significant impact on the safe and reliable operation of the energy storage system. Therefore, a method that can improve the safety of energy storage systems is needed.
  • inventions of the present application provide an energy storage system and a method for thermal management of the energy storage system.
  • the energy storage system includes multiple batteries and a liquid cooling system.
  • the liquid cooling system includes multiple water pumps corresponding to the multiple batteries. , when a battery cell undergoes thermal runaway, turning on the water pump corresponding to the battery where the battery cell is located can achieve precise cooling of the failed battery. This solution can prevent heat diffusion in the energy storage system and reduce the power consumption of the liquid cooling system.
  • FIGS. 2 and 3 are schematic structural diagrams of the energy storage system 20 according to the embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of the energy storage system 20 when a battery cell undergoes thermal runaway.
  • the energy storage system 20 includes multiple batteries 11 and a liquid cooling system 40 .
  • the liquid cooling system 40 includes multiple water pumps 143 and thermal management units 41 corresponding to the multiple batteries 11 .
  • the thermal management unit 41 can be used to determine the first battery 15 where the thermally runaway battery cell 111 is located, and start the first water pump 1431 corresponding to the first battery 15 to cool down the first battery 15 .
  • the battery 11 includes one or more battery cells 110 .
  • the thermal management unit 41 determines the first battery 15 corresponding to the thermally runaway battery cell 111 and turns on the first water pump 1431 corresponding to the first battery 15 , the cooling liquid in the pipe connecting the first water pump 1431 and the first battery 15 can be continuously circulated, thereby achieving accurate cooling of the failed first battery 15, thereby reducing the power consumption of the liquid cooling system 40.
  • the energy storage system 20 may also include a battery management system 13, and the thermal management unit 41 may be used to receive the first indication information sent by the battery management system 13, and the first indication information is used to indicate the first battery 15, and then determine the first battery 15 according to the first indication information.
  • the battery management system 13 is mainly for intelligent management and maintenance of each battery unit, which can prevent the battery from overcharging and over-discharging, extend the service life of the battery, and monitor the status of the battery.
  • the battery management system 13 may be connected to the thermal management unit 41 of the liquid cooling system 40 .
  • the thermal management unit 41 can receive the first indication information sent by the battery management system 13, determine the first battery 15 where the thermal runaway battery cell 111 is located based on the first indication information, and then The first water pump 1431 corresponding to the first battery 15 is turned on to cool down the first battery 15 , thereby achieving precise cooling of the failed battery and reducing the power consumption of the liquid cooling system 40 . In addition, it can also prevent heat diffusion in the entire energy storage system 20 and improve the safety of the energy storage system 20 .
  • multiple batteries 11 can correspond to one water pump 143. That is to say, all batteries 11 in the energy storage system 20 can be divided into multiple battery clusters, and each battery cluster corresponds to one water pump 143. Each battery cluster includes multiple batteries. When the battery cell 110 of a certain battery 11 in the battery cluster experiences thermal runaway, the water pump 143 corresponding to the battery cluster can simultaneously cool down multiple batteries 11 in the battery cluster to prevent thermal diffusion in the energy storage system 20 .
  • the energy storage system includes M batteries 11, and the M batteries 11 may correspond to N water pumps 143, where M and N are natural numbers and M ⁇ N.
  • the first indication information may include location information or identification information of the first battery 15 .
  • the thermal management unit 41 can turn on the first water pump 1431 corresponding to the first battery 15 according to the location information or identification information of the first battery 15, thereby achieving precise cooling of the failed battery and reducing the power consumption of the liquid cooling system 40. . In addition, it can also prevent heat diffusion in the entire energy storage system 20 and improve the safety of the energy storage system 20 .
  • the battery management system 13 may be configured to receive abnormal indication information.
  • the abnormal indication information may be used to indicate the existence of a thermally runaway battery cell 111 , and may also determine a thermally runaway battery cell based on the abnormal indication information.
  • the first battery 15 where the body 111 is located is located, and the first indication information is sent to the thermal management unit 41 .
  • the battery management system 13 can determine which battery cell 110 inside the battery 11 has experienced thermal runaway according to the object that sent the abnormal indication information, thereby storing the information of the battery 11 is sent to the thermal management unit 41, causing the thermal management unit 41 to turn on the water pump 143 corresponding to the battery 11 to cool the battery 11, thereby preventing heat diffusion in the entire energy storage system 20, and due to the precise cooling, the liquid cooling System 40 power consumption.
  • the thermal management unit 41 may also be configured to receive second indication information sent by the battery management system 13.
  • the second indication information includes the power information of the first water pump 1431.
  • the thermal management unit 41 may also use To adjust the power of the first water pump 1431 according to the second instruction information.
  • the battery management system 13 may send second indication information to the thermal management unit 41 to instruct the thermal management unit 41 to adjust the power of the first water pump 1431 , where the second indication information includes the power information of the first water pump 1431 .
  • the power information of the first water pump 1431 may include the set power value and start-up time length, and may also include a power adjustment strategy. For example, the first water pump 1431 supplies power with the first power value when it is turned on, and then as time goes by Reduce power by a tenth every ten minutes.
  • the battery management system 13 may also be used to determine the power of the first water pump 1431 and send the second indication information to the thermal management unit 41 .
  • the battery management system 13 may determine the power of the first water pump 1431 or develop a power plan for the first water pump 1431 based on manufacturer requirements or actual conditions, such as the severity of thermal runaway, to save power consumption of the liquid cooling system 40 .
  • the battery management system 20 may be used to obtain the operating status of the thermally runaway battery cell 111 and determine the power of the first water pump 1431 according to the operating status of the thermally runaway battery cell 111 .
  • the operating status of the battery cell 310 may be monitoring data such as temperature and voltage.
  • the battery management system 20 determines that there is a thermally runaway battery cell 111 and instructs the thermal management unit 41 to turn on the first water pump 1431, it can also obtain the operating status of the thermally runaway battery cell 111 in real time, and make real-time adjustments based on the operating status.
  • the power of the first water pump 1431 For example, the battery management system 13 obtains the temperature of the thermally runaway battery cell 111 in real time. Generally, in the early stage of thermal runaway, the temperature is relatively high. At this time, the first water pump 1431 can use the highest power to cool down the first battery 15, and then as the temperature The decrease gradually reduces the power of the first water pump 1431.
  • the battery management system 13 may be used to determine the power of the first water pump 1431 according to the start period of the first water pump 1431 .
  • the battery management system 13 will set the opening time period of the water pump 143, that is, the length of time.
  • the time for the water pump 143 to be continuously turned on is 1 hour. It can also be set to other values according to actual needs. The duration is not limited by this application.
  • the battery management system 13 can set different powers during the opening period of the first water pump 1431 according to the state pattern of the battery cell 110 after thermal runaway, so as to achieve a balance between cooling effect and power consumption, thereby saving power consumption.
  • the time period may include multiple sub-time periods, wherein the power of the first water pump 1431 is different in at least two sub-time periods; or the power of the first water pump 1431 gradually decreases within the time period.
  • the start-up time period of the first water pump 1431 can be divided into multiple sub-time periods, and different powers are set in different time periods.
  • the start time period of the first water pump 1431 is 1 hour, and the 1 hour is divided into 3 sub-time periods, and the duration of each sub-time period is 20 minutes.
  • the power of the first water pump 1431 can be set to the highest power; after cooling down in the first sub-time period, the temperature of the first battery 15 has dropped.
  • the second sub-time period a part of the power can be reduced for cooling; after cooling in the first two sub-time periods, the temperature of the first battery 15 is lower.
  • the first water pump 1431 can be run with lower power, thereby achieving a cooling effect and power consumption balance to save power consumption.
  • the power of the first water pump 1431 can be gradually reduced during the on-time period, for example, in a linear or curved manner, thereby achieving a balance between the cooling effect and power consumption, thereby saving power consumption of the liquid cooling system 40 .
  • the battery 11 may also include a detector 12 for collecting the operating status of the battery cells 110 in the battery 11, and determining based on the operating status that there is a thermal runaway battery cell 111, and reporting the problem to the battery.
  • the management system 13 sends abnormality indication information.
  • each battery 11 in the plurality of batteries includes a detector 12.
  • the detector 12 can detect each battery cell 110 inside the battery 11 in real time to determine whether the battery cell 110 is is within a safe range, thereby determining whether the battery cell 110 is abnormal, that is, whether the battery cell 110 has thermal runaway.
  • the detector 12 After the detector 12 collects the operating status of the battery cell 110, it can determine whether there is a thermal runaway battery cell 111 based on the operating status. Generally, determining that the battery cell 111 has thermal runaway can be based on the following characteristics: the temperature of the monitoring point reaches the maximum operating temperature specified by the manufacturer; the trigger object produces a voltage drop, and the ratio of the drop value to the initial voltage exceeds a preset ratio. When any of the above characteristics occurs, it is determined that the battery cell 111 has thermal runaway.
  • the detector 12 may also include at least one of a gas sensor, a smoke sensor, and an electrolyte sensor.
  • determining that the battery cell 111 has thermal runaway can also be based on the following characteristics: a specific odor is detected and identified at the monitoring point; smoke is detected and identified at the monitoring point; and liquid is detected by the leakage sensing line. When any of the above characteristics occurs, it is determined that the battery cell 111 has thermal runaway.
  • diversified sensors are added to the battery 11, which allows the battery management system 13 to determine whether there is a thermal runaway battery cell 111 in more ways to quickly respond to the abnormal situation and improve the energy storage system 20 security.
  • the power supply system of the energy storage system 20 stops supplying power to the liquid cooling system 40 when there is a thermally runaway battery cell 111.
  • the energy storage system 20 may also include a backup power supply 60 for power supply. After the system 60 stops supplying power to the liquid cooling system 40, it supplies power to the thermal management unit 41 and the first water pump 1431.
  • the conventional liquid cooling system 40 has only one power supply, that is, the electric energy provided by the power supply system, which can be understood as commercial power.
  • the power supply system will stop supplying power to the liquid cooling system 40.
  • the energy storage system 20 in the embodiment of the present application is equipped with a backup power supply 60, which can provide power to the liquid cooling system 40 when the power supply system stops.
  • the liquid cooling system 40 After the liquid cooling system 40 is powered, it ensures the power supply of the thermal management unit 41 and the first water pump 1431 to cool down the first battery 15 where the thermally runaway battery cell 111 is located, ensuring that no heat diffusion occurs inside the energy storage system 20, thereby Improve the safety of the energy storage system 20 .
  • the backup power supply 60 may be a battery, and the battery may provide power to the thermal management unit 41 and the water pump 143 .
  • the battery management system 40 controls the battery to supply power to the thermal management unit 41 and the first water pump 1431, and when the battery outputs current to the thermal management unit 41 and the first water pump 1431, the thermal The management unit 41 begins to receive instruction information from the battery management system 13, and the first water pump 1431 begins to operate to control the circulation of coolant in the pipe connecting the first water pump 1431 and the first battery 15 to cool the first battery 15 to prevent storage. Thermal diffusion occurs in the energy system 20 , thereby improving the safety of the energy storage system 20 .
  • the backup power supply 60 can supply power to the thermal management unit 41 and the first water pump 1431 through a DC power supply circuit; or the backup power supply 60 can be connected to the liquid cooling system through the inverter 61
  • the AC power supply circuit of the system 40 supplies power to the liquid cooling system 40 , where the inverter 61 can be used to convert the DC power of the backup power supply 60 into the AC power required by the liquid cooling system 40 .
  • the backup power supply 60 supplies power to the thermal management unit 41 and the first water pump 1431 through the DC power supply circuit
  • the backup power supply 60 is connected to the thermal management unit 41 and the first water pump 1431, and supplies power to the thermal management unit 41 and the first water pump 1431. Direct current transmission.
  • an inverter 61 is arranged between the backup power supply 60 and the connection circuit of the liquid cooling system 40, and the DC power of the backup power supply 60 passes through The inverter 61 converts the alternating current into alternating current and then transmits it to the liquid cooling system 40 .
  • the inverter 61 can also be other inverter modules, as long as it can convert the DC power output by the backup power supply 60 into the DC power required by the liquid cooling system 40 to ensure the power supply of the liquid cooling system 40 and thereby ensure the liquid cooling system 40 Normal operation of the thermal management unit 41 and the first water pump 1431.
  • the backup power supply 60 can provide power through the DC power supply circuit to the thermal management unit 41 and the first water pump 1431 corresponding to the first battery 15 where the battery cell 111 that has experienced thermal runaway is located, which not only ensures that the liquid cooling system 40 In order to improve the safety, the configuration capacity of the backup power supply 60 can also be reduced, saving costs and space.
  • the energy storage system embodiment of the present application is described in detail above with reference to Figures 2 to 5.
  • the method embodiment of the energy storage system thermal management of the present application is described in detail below with reference to Figures 6 and 7. It should be understood that the method embodiment Corresponding to the energy storage system embodiments, similar descriptions may refer to the energy storage system embodiments.
  • FIG. 6 shows a schematic flow chart of the method 100 for thermal management of an energy storage system according to an embodiment of the present application.
  • the execution subject of the method 100 is a thermal management unit, which may be the thermal management unit 41 of the energy storage system 20 mentioned above.
  • the energy storage system thermal management method 100 may include the following steps.
  • the thermal management unit 41 determines the first battery 15 where the thermal runaway battery cell 111 is located.
  • the thermal management unit 41 turns on the first water pump 1431 corresponding to the first battery 15 to cool down the first battery 421.
  • the thermal management unit 41 may receive the first indication information sent by the battery management system 13, the first indication information is used to indicate the first battery 15, and then the thermal management unit 41 can The first indication information identifies the first battery 15 .
  • the first indication information may include location information or identification information of the first battery 15 .
  • the method 100 may further include: the thermal management unit 41 receives second indication information, the second indication information includes the power information of the first water pump 1431, and the thermal management unit 41 further performs the operation according to the second indication information. Adjust the power of the first water pump 1431.
  • FIG. 7 shows a schematic flow chart of a method 200 for thermal management of an energy storage system according to an embodiment of the present application.
  • the execution subject of the energy storage system thermal management method 200 is a battery management system, which may be the battery management system 13 of the energy storage system 20 described above.
  • the energy storage system thermal management method 200 may include the following steps:
  • the battery management system 13 receives abnormal indication information, which is used to indicate that the battery cell 111 has thermal runaway.
  • the battery management system 13 determines the first battery 15 where the thermal runaway battery cell 111 is located based on the abnormal indication information.
  • the battery management system sends the first instruction information to the thermal management unit 41.
  • the first instruction information is used to instruct the first battery 150 so that the thermal management unit 41 turns on the first water pump 1431 corresponding to the first battery 150.
  • the battery 150 is cooled down.
  • the first indication information may include location information or identification information of the first battery 150 .
  • the method 200 may further include: the battery management system 13 determines the power of the first water pump 1431, and then sends second indication information to the thermal management unit 41, where the second indication information includes the power of the first water pump 1431. Power information.
  • the battery management system 13 may obtain the operating status of the thermally runaway battery cell 111, and then determine the first operating status of the thermally runaway battery cell 111. The power of water pump 1431.
  • the battery management system 13 may determine the power of the first water pump 1431 according to the start period of the first water pump 1431.
  • the battery management system 13 determines the power of the first water pump 1431 according to the start time period of the first water pump 1431.
  • the time period may include multiple sub-time periods, wherein the first time period in at least two sub-time periods is The power of the water pump 1431 is different, or the power of the first water pump 1431 may be gradually reduced within a time period.
  • FIG. 8 shows a schematic structural block diagram of an energy storage system thermal management device 800 provided by an embodiment of the present application.
  • the device 800 includes: at least one processor 810 and a memory 820.
  • the memory 820 is used to store the program.
  • the at least one processor 810 is used to call and run the program from the memory 820 to perform any of the above.
  • the embodiment provides a method for thermal management of an energy storage system.
  • the device 800 may be the thermal management unit 141 described above, executing the method 100 for thermal management of an energy storage system provided in any of the above embodiments.
  • the device 800 may also be a battery management system 13 , executing the method 100 provided by any of the above embodiments.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program.
  • the computer program When the computer program is run on a computer device, it causes the computer device to execute the energy storage system provided by any of the above embodiments. Thermal management methods.
  • Embodiments of the present application also provide a computer program product including a computer program, which, when run on a computer device, causes the computer device to perform the method for thermal management of an energy storage system provided in any of the above embodiments.
  • An embodiment of the present application also provides a chip.
  • the chip includes a processor and a data interface.
  • the processor reads instructions stored in the memory through the data interface to execute the thermal energy storage system provided in any of the above embodiments. management methods.
  • the chip can be a central processing unit (CPU), a microcontroller unit (Micro Controller Unit, MCU), a microprocessor (Micro Processing Unit, MPU), a digital signal processor (DSP), a system on a chip (System On Chip (SoC), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or programmable logic device (programmable logic device, PLD).
  • CPU central processing unit
  • MCU microcontroller unit
  • MPU Micro Processing Unit
  • DSP digital signal processor
  • SoC System On Chip
  • SoC System On Chip
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • PLD programmable logic device
  • the number of processors is not limited.
  • the processor is a general-purpose processor, and optionally, the general-purpose processor can be implemented by hardware or by software.
  • the processor is a logic circuit, integrated circuit, etc.; when implemented by software, the processor is a general processor that is implemented by reading the software code stored in the memory, which is integrated in the processor. In the processor, it is located outside the processor and exists independently.
  • the above embodiments are implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments are implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer is a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in or transmitted from one computer-readable storage medium to another, e.g., from a website, computer, server, or data center. Wired (such as infrared, wireless, microwave, etc.) transmission to another website, computer, server or data center.
  • the computer-readable storage medium is any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more sets of available media.
  • the available media are magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, DVD), or semiconductor media, such as solid state drives.
  • At least one refers to one or more, and “plurality” refers to two or more.
  • At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
  • at least one of a, b, or c means: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c are single or multiple.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the device embodiments described above are only illustrative.
  • the division of modules is only a logical function division.
  • Another point is that the coupling or direct coupling or communication connection between each other shown or discussed is the indirect coupling or communication connection through some interfaces, devices or modules, which is electrical, mechanical or other forms.
  • each functional module in each embodiment of the present application can be integrated into a processing device.
  • each module physically exists alone, or two or more modules are integrated into one module.
  • the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (either a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other various media that can store program codes.

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Abstract

本申请实施例提供了一种储能系统、储能系统热管理的方法和装置，该系统包括多个电池和液冷系统；液冷系统包括与多个电池对应的多个水泵和热管理单元；热管理单元用于确定热失控的电池单体所在的第一电池，并开启所述第一电池对应的第一水泵，以对第一电池进行降温。通过向储能系统的每个电池都配备对应的水泵，使得电池内部的电池单体发生热失控时，仅需控制液冷系统的热管理单元开启对应的水泵，即可对该电池进行精准降温，可以提高储能系统的安全性并降低液冷系统的功耗。

Description

储能系统、储能系统热管理的方法和装置 技术领域
本申请涉及电池技术领域，特别是涉及一种储能系统、储能系统热管理的方法和装置。
背景技术
储能系统中包括多个串并联的电池，电池内的电池单体由于机械、环境或制造缺陷会出现偶发性热失控，其释放的热量会向周围电池单体传递，若不及时处理最终可能导致整个储能系统发生热扩散，从而引发燃烧、爆炸等二次灾害，给储能系统的安全可靠运行带来重大影响。
因此，亟需一种可以提高储能系统安全性的方法。
发明内容
本申请提供了一种储能系统、储能系统热管理的方法和装置，可以对热失控的电池单体所在的电池进行精准降温，能够防止电池发生热扩散而波及其他电池，从而保证储能系统的安全性。
第一方面，提供了一种储能系统，包括多个电池和液冷系统；所述液冷系统包括与多个电池对应的多个水泵和热管理单元；所述热管理单元用于确定热失控的电池单体所在的第一电池，并开启所述第一电池对应的第一水泵，以对所述第一电池进行降温。
本申请实施例中，储能系统的每个电池都配备了对应的水泵，使得电池内部的电池单体发生热失控时，仅需控制液冷系统的热管理单元开启该电池对应的水泵，即可对该电池进行精准降温，可以防止电池发生热扩散而波及其他电池，从而提高整个储能系统的安全性。并且，由于可以对热失控的电池单体所在的电池进行精准降温，可以降低液冷系统的功耗。
在一些实施例中，所述储能系统还包括电池管理系统；所述热管理单元用于接 收所述电池管理系统发送的第一指示信息，所述第一指示信息用于指示所述第一电池；根据所述第一指示信息确定所述第一电池。
上述实施方式，热管理单元可以通过第一指示信息确定发生热失控的电池单体所在的电池，从而可以开启该电池对应的水泵，对该电池进行精准降温，可以保证储能系统的安全性且降低液冷系统的功耗。
在一些实施例中，所述第一指示信息包括所述第一电池的位置信息或标识信息。
在一些实施例中，所述电池管理系统用于接收异常指示信息，所述异常指示信息用于指示存在所述热失控的电池单体；根据所述异常指示信息确定所述热失控的电池单体所在的所述第一电池，并向所述热管理单元发送所述第一指示信息。
上述实施方式，电池管理系统作为储能系统的控制中心，可以根据异常指示信息确定储能系统出现热失控的电池单体，并且可以根据发送异常指示信息的对象确定热失控的电池单体所在的电池，从而可以指示液冷系统的热管理单元开启该电池对应的水泵以对该电池进行精准降温，防止电池发生热扩散而波及其他电池，提高了储能系统的安全性且降低了液冷系统的功耗。
在一些实施例中，所述热管理单元还用于接收电池管理系统发送的第二指示信息，所述第二指示信息包括所述第一水泵的功率信息；所述热管理单元还用于根据所述第二指示信息调节所述第一水泵的功率。
上述实施方式，水泵的功率可调节，热管理单元可以根据电池管理系统的指令调节第一水泵的功率，实现降温效果与功耗的平衡，以进一步节省液冷系统的功耗。
在一些实施例中，所述电池管理系统还用于确定所述第一水泵的功率，并向所述热管理单元发送所述第二指示信息。
上述实施方式，电池管理系统可以根据厂商要求或实际情况，例如热失控的严重程度，确定第一水泵的功率或制定第一水泵的功率计划，以节省液冷系统的功耗。
在一些实施例中，所述电池管理系统用于获取所述热失控的电池单体的运行状态，并根据所述热失控的电池单体的运行状态确定所述第一水泵的功率。
上述实施方式，电池管理系统可以根据热失控的电池单体的运行状态实施调节第一水泵的功率，实现实现降温效果与功耗的平衡，以最大程度节省液冷系统的功耗。
在一些实施例中，所述电池管理系统用于根据所述第一水泵的开启时间段确定所述第一水泵的功率。
上述实施方式，电池管理系统可以根据电池单体发生热失控后的状态规律，在第一水泵的开启时间段内设置不同的功率，以实现降温效果与功率消耗的平衡，从而节省液冷系统的功耗。
在一些实施例中，所述时间段包括多个子时间段，其中至少两个所述子时间段内所述第一水泵的功率不同；或所述第一水泵的功率在所述时间段内逐渐降低。
上述实施方式，将第一水泵的开启时间段分为多个子时间段，且在不同的子时间段将第一水泵设置为不同的功率，可以以子时间段为界阶梯式逐级降低，或者第一水泵的功率在整个开启时间段内逐渐降低，从而节省液冷系统的功耗。
在一些实施例中，所述电池还包括探测器，用于采集所述电池中电池单体的运行状态，并根据所述运行状态确定存在所述热失控的电池单体，并向所述电池管理系统发送所述异常指示信息。
上述实施方式，通过给每个电池配备探测器，可以使得电池管理系统根据探测器上报的异常指示信息判断出是哪个电池内部出现了热失控的电池单体，从而对该电池单体精准降温，以降低液冷系统的功耗。
在一些实施例中，所述探测器包括气味传感器、烟雾传感器以及电解液漏液传感器中至少一个。
上述实施方式，在电池中增加了多样化传感器，可使得电池管理系统能够以更多途径确定是否存在热失控的电池单体，以快速响应该异常情况，从而提高储能系统的安全性。
在一些实施例中，所述储能系统的供电系统在存在所述热失控的电池单体时，停止向所述液冷系统供电；所述储能系统还包括备用电源，用于所述供电系统停止向所述液冷系统供电后，向所述热管理单元和所述第一水泵供电。
上述实施方式，通过提供备用电源向液冷系统供电，可以保证液冷系统不会因为储能系统出现热失控的电池单体而停止工作，进一步提高了储能系统的安全性。
在一些实施例中，所述备用电源通过直流供电电路向所述热管理单元和所述第一水泵供电；或所述备用电源通过逆变器连接所述液冷系统的交流供电电路以向所述液冷系统供电，其中所述逆变器用于将所述备用电源的直流电转化为所述液冷系统所需的交流电。
上述实施方式，备用电源可以通过直流供电电路向热管理单元和向发生热失控 的电池单体所在的第一电池对应的第一水泵进行供电，不仅可以保证液冷系统的安全性，还可以降低备用电源的配置容量，节约成本和空间。
第二方面，提供了一种储能系统热管理的方法，所述储能系统包括多个电池和液冷系统；所述液冷系统包括与所述多个电池对应的多个水泵和热管理单元；所述方法包括：所述热管理单元确定热失控的电池单体所在的第一电池；所述热管理单元开启所述第一电池对应的所述第一水泵，以对所述第一电池进行降温。
本申请实施例中，向储能系统的每个电池都配备了对应的水泵，使得电池内部的电池单体发生热失控时，仅需热管理单元开启对应的水泵，即可对该电池进行精准降温，可以防止电池发生热扩散而波及其他电池，从而保证储能系统的安全性。并且，由于可以对热失控的电池单体所在的电池进行精准降温，可以降低液冷系统的功耗。
在一些实施例中，所述热管理单元确定热失控的电池单体所在的第一电池包括：所述热管理单元接收电池管理系统发送的第一指示信息，所述第一指示信息用于指示所述第一电池；所述热管理单元根据所述第一指示信息确定所述第一电池。
上述实施方式，热管理单元可以通过第一指示信息确定发生热失控的电池单体所在的电池，从而可以开启该电池对应的水泵，对该电池进行精准降温，可以保证储能系统的安全性且降低液冷系统的功耗。
在一些实施例中，所述第一指示信息包括所述第一电池的位置信息或标识信息。
在一些实施例中，所述热管理单元接收第二指示信息，所述第二指示信息包括所述第一水泵的功率信息；所述热管理单元根据所述第二指示信息调节所述第一水泵的功率。
上述实施方式，水泵的功率可调节，热管理单元可以根据电池管理系统的指令调节第一水泵的功率，实现降温效果与功耗的平衡，以进一步节省液冷系统的功耗。
第三方面，提供了一种储能系统热管理的方法，所述储能系统包括多个电池、液冷系统和电池管理系统；所述液冷系统包括与所述多个电池对应的多个水泵和热管理单元；所述方法包括：所述电池管理系统接收异常指示信息，所述异常指示信息用于指示存在热失控的电池单体；所述电池管理系统根据所述异常指示信息确定所述热失控的电池单体所在的第一电池；所述电池管理系统向所述热管理单元发送第一指示信息，所述第一指示信息用于指示所述第一电池，以使所述热管理单元开启所述第一电池对应的第一水泵，对所述第一电池进行降温。
上述实施方式，电池管理系统作为储能系统的控制中心，可以根据异常指示信息确定储能系统出现热失控的电池单体，并且可以根据发送异常指示信息的对象确定热失控的电池单体所在的电池，从而可以指示液冷系统的热管理单元开启该电池对应的水泵以对该电池进行精准降温，防止电池发生热扩散而波及其他电池，提高了储能系统的安全性且降低了液冷系统的功耗。
在一些实施例中，所述第一指示信息包括所述第一电池的位置信息或标识信息。
在一些实施例中，所述方法还包括：所述电池管理系统确定所述第一水泵的功率；所述电池管理系统向所述热管理单元发送所述第二指示信息，所述第二指示信息包括所述第一水泵的功率信息。
上述实施方式，电池管理系统可以根据厂商要求或实际情况，例如热失控的严重程度，确定第一水泵的功率或制定第一水泵的功率计划，以节省液冷系统的功耗。
在一些实施例中，所述电池管理系统确定所述第一水泵的功率包括：所述电池管理系统获取所述热失控的电池单体的运行状态，并根据所述热失控的电池单体的运行状态确定所述第一水泵的功率。
上述实施方式，电池管理系统可以根据热失控的电池单体的运行状态实施调节第一水泵的功率，实现实现降温效果与功耗的平衡，以最大程度节省液冷系统的功耗。
在一些实施例中，所述电池管理系统根据所述第一水泵的开启时间段确定所述第一水泵的功率。
上述实施方式，电池管理系统可以根据电池单体发生热失控后的状态规律，在第一水泵的开启时间段内设置不同的功率，以实现降温效果与功率消耗的平衡，从而节省液冷系统的功耗。
在一些实施例中，所述时间段包括多个子时间段，其中至少两个所述子时间段内所述第一水泵的功率不同；或所述第一水泵的功率在所述时间段内逐渐降低。
上述实施方式，将第一水泵的开启时间段分为多个子时间段，且在不同的子时间段将第一水泵设置为不同的功率，可以以子时间段为界阶梯式逐级降低，或者第一水泵的功率在整个开启时间段内逐渐降低，从而节省液冷系统的功耗。
第四方面，提供了一种储能系统热管理的装置，包括处理器和存储器，所述存储器用于存储程序，所述处理器用于从所述存储器中调用并运行所述程序以执行如第二方面和第三方面中任一可能的实施方式中的储能系统热管理的方法。
第五方面，提供了一种计算机可读存储介质，包括计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如第二方面和第三方面中任一可能的实施方式中的储能系统热管理的方法。
本申请实施例中，储能系统的每个电池都配备了对应的水泵，使得电池内部的电池单体发生热失控时，仅需控制液冷系统的热管理单元开启对应的水泵，即可对该电池进行精准降温，可以防止电池发生热扩散而波及其他电池，从而保证储能系统的安全性。并且，由于可以对热失控的电池单体所在的电池进行精准降温，可以降低液冷系统的功耗。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请一实施例公开的一种储能系统的架构示意图；
图2是本申请一实施例公开的另一种储能系统的结构示意图；
图3是本申请一实施例公开的再一种储能系统的结构示意图；
图4是本申请一实施例公开的一种液冷系统供电方式的连接示意图；
图5是本申请一实施例公开的另一种液冷系统供电方式的连接示意图；
图6是本申请一实施例公开的一种储能系统热管理的方法的示意性流程图；
图7是本申请一实施例公开的另一种储能系统热管理的方法的示意性流程图；
图8是本申请一实施例公开的一种储能系统热管理的装置的示意性结构框图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上； 术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
图1为本申请提供的储能系统10的架构图。如图1所示，储能系统10可以包括电池11、探测器12、电池管理系统13以及液冷系统14。其中，液冷系统14可以包括热管理单元141、压缩机142、水泵143以及风扇144。
探测器12可以是温度传感器，用于检测电池11的温度。当电池11的温度高于预设的温度阈值时，可以向电池管理系统13发送信号，电池管理系统13收到信号后向液冷系统14发送相应的制冷指令，液冷系统14开始循环工作，给电池11进行降温。
液冷系统14可以包括热管理单元141、压缩机142、水泵143和风扇144。其中热管理单元141可以用于控制液冷系统14中的各个组件配合以执行电池管理系统13的制冷指令，从而给电池11降温。
压缩机142，是将低压气体提升为高压的一种从动的流体机械，是制冷系统的心脏，它从吸气管吸入低温低压的制冷剂气体，通过电机运转带动活塞对其进行压缩后，向排气管排出高温高压的制冷剂液体，为制冷循环提供动力。
水泵143的出口可以连接于电池11，利用流出的冷却液对电池11进行降温。水泵143是整个液冷系统的动力源，可以控制出口的液体流量，确保电池11有足够的冷却液流量，以及确保供给流量的一致性。
风扇144也可以称为散热风机，可以对液冷系统14中的冷却液管道的液体进行降温。
应理解，本申请实施例对电路的连接关系不作限定，在实际应用中，图1的各部件之间还可能连接其他的设备。
目前，市场中的储能系统通常为大容量储能系统，储能系统内会包括多个串并联的电池。在储能系统的使用过程中，电池内的电池单体由于机械、环境或制造缺陷会出现偶发性热失控，其释放的热量会向周围电池单体传递，若不及时处理最终可能导致整个储能系统发生热扩散，从而引发燃烧、爆炸等二次灾害，给储能系统的安全可靠运行带来重大影响。因此需要一种可以提高储能系统安全性的方法。
鉴于此，本申请实施例提供了一种储能系统以及储能系统热管理的方法，该储能系统包括多个电池及液冷系统，液冷系统中包括与多个电池对应的多个水泵，当电池单体发生热失控时，开启该电池单体所在的电池所对应的水泵，可以实现对失效电池的精准降温。该方案可以防止储能系统发生热扩散并降低液冷系统的功耗。接下来将结合附图，详细说明本申请实施例中的方案。
图2和图3是本申请实施例的储能系统20的结构示意图。图3是电池单体发生热失控是储能系统20的结构示意图。如图2和图3所示，储能系统20中包括多个电池11和液冷系统40，液冷系统40包括与多个电池11对应的多个水泵143和热管理单元41。热管理单元41可以用于确定热失控的电池单体111所在的第一电池15，并开启第一电池15对应的第一水泵1431，以对第一电池15进行降温。
其中，电池11包括一个或多个电池单体110。
当某一电池单体110发生热失控成为热失控的电池单体111，热管理单元41确定热失控的电池单体111对应的第一电池15，并开启第一电池15对应的第一水泵1431，可以使得第一水泵1431与第一电池15连接管道中的冷却液持续循环，进而实现对失效的第一电池15进行精准降温，从而降低液冷系统40的功耗。
可选地，在一些实施例中，储能系统20还可以包括电池管理系统13，热管理单元41可以用于接收电池管理系统13发送的第一指示信息，第一指示信息用于指示第一电池15，再根据第一指示信息确定第一电池15。
电池管理系统13主要就是为了智能化管理及维护各个电池单元，可以防止电池出现过充电和过放电，延长电池的使用寿命，监控电池的状态。电池管理系统13可以与液冷系统40的热管理单元41相连接。
应理解，电池单体110发生热失控，则该电池单体110所在的电池11为失效电 池。当出现热失控的电池单体111时，热管理单元41可以接收电池管理系统13发送的第一指示信息，根据第一指示信息判断出现热失控的电池单体111所在的第一电池15，然后开启第一电池15对应的第一水泵1431，以对第一电池15降温，从而实现对失效电池的精准降温，降低液冷系统40的功耗。另外，还可以防止整个储能系统20发生热扩散，提高储能系统20的安全性。
可选地，在一些实施例中，多个电池11可以对应一个水泵143，也就是说，可以将储能系统20中所有电池11分为多个电池簇，每个电池簇对应一个水泵143，其中每个电池簇包括多个电池。当电池簇中某一电池11的电池单体110发生热失控，该电池簇对应的水泵143可以同时对该电池簇内多个电池11进行降温，以防止储能系统20发生热扩散。示例性的，储能系统中包括M个电池11，该M个电池11可以对应N个水泵143，其中，M和N为自然数且M≥N。通过向多个电池配备一个水泵，相较于向每个电池11配备一个水泵143，可以降低储能系统20的配置，节省空间和资源。
可选地，在一些实施例中，第一指示信息可以包括第一电池15的位置信息或标识信息。
上述实施例，热管理单元41可以根据第一电池15的位置信息或标识信息开启第一电池15所对应的第一水泵1431，从而实现对失效电池的精准降温，降低液冷系统40的功耗。另外，还可以防止整个储能系统20发生热扩散，提高储能系统20的安全性。
可选地，在一些实施例中，电池管理系统13可以用于接收异常指示信息，异常指示信息可以用于指示存在热失控的电池单体111，还可以根据异常指示信息确定热失控的电池单体111所在的第一电池15，并向热管理单元41发送第一指示信息。
本申请实施例中，电池管理系统13在收到异常指示信息后，可以根据发送异常指示信息的对象确定是哪一个电池11内部的电池单体110发生了热失控，从而将该电池11的信息发送至热管理单元41，使热管理单元41开启该电池11所对应的水泵143，以对该电池11进行降温，从而防止整个储能系统20发生热扩散，并且由于精准降温还降低了液冷系统40的功耗。
可选地，在一些实施例中，热管理单元41还可以用于接收电池管理系统13发送的第二指示信息，第二指示信息包括第一水泵1431的功率信息，热管理单元41还可以用于根据第二指示信息调节第一水泵1431的功率。
应理解，第一水泵1431的功率可以调节，例如可以通过控制供电功率来调节第一水泵1431的功率。电池管理系统13可以向热管理单元41发送第二指示信息来指示热管理单元41调节第一水泵1431的功率，该第二指示信息包括第一水泵1431的功率信息。
第一水泵1431的功率信息可以包括设定的功率值和开启时间长度，也可以包括功率调节的策略，示例性的，第一水泵1431开启时以第一功率值供电，随后随着时间的推移每十分钟降低十分之一的功率。
可选地，在一些实施例中，电池管理系统13还可以用于确定第一水泵1431的功率，并向热管理单元41发送第二指示信息。
电池管理系统13可以根据厂商要求或实际情况，例如热失控的严重程度，确定第一水泵1431的功率或制定第一水泵1431的功率计划，以节省液冷系统40的功耗。
可选地，在一些实施例中，电池管理系统20可以用于获取热失控的电池单体111的运行状态，并根据热失控的电池单体111的运行状态确定第一水泵1431的功率。
应理解，电池单体310的运行状态可以是温度、电压等监测数据。
电池管理系统20在确定存在热失控的电池单体111时并指示热管理单元41开启第一水泵1431后，还可以实时获取热失控的电池单体111的运行状态，并根据该运行状态实时调节第一水泵1431的功率。例如，电池管理系统13实时获取热失控的电池单体111的温度，一般在热失控前期，温度较高，此时可以给第一水泵1431使用最高功率给第一电池15降温，然后随着温度的降低逐渐降低第一水泵1431的功率。
上述实施例中，通过实时获取热失控的电池单体111的运行状态调节为其降温的第一水泵1431的功率，可以实现降温效果与功率消耗的平衡，从而以最大程度节省液冷系统40的功耗。
可选地，在一些实施例中，电池管理系统13可以用于根据第一水泵1431的开启时间段确定第一水泵1431的功率。
应理解，水泵143在向电池11进行降温时，一般电池管理系统13会设置水泵143的开启时间段，即时间长度，例如持续开启水泵143的时间为1小时，也可以根据实际需求设置为其他时长，本申请对此不作限定。
电池管理系统13可以根据电池单体110发生热失控后的状态规律，在第一水泵1431的开启时间段内设置不同的功率，以实现降温效果与功率消耗的平衡，从而节 省功耗。
可选地，在一些实施例中，时间段可以包括多个子时间段，其中至少两个子时间段内第一水泵1431的功率不同；或第一水泵1431的功率在时间段内逐渐降低。
为了节省功耗，第一水泵1431的开启时间段可以被分为多个子时间段，在不同的时间段内设置不同的功率。示例性的，第一水泵1431的开启时间段为1小时，将1小时分为3个子时间段，每个子时间段的时长为20分钟。由于第一子时间段第一电池15处于热失控的前期，可以将第一水泵1431的功率设置为最高功率；在经过第一子时间段的降温后，第一电池15的温度已经下降，第二子时间段可以降低一部分功率为其降温；经过前两个子时间段的降温，第一电池15的温度更低，此时可以以较低功率使第一水泵1431运行，从而实现降温效果与功率消耗的平衡，以节省功耗。
第一水泵1431的功率可以在开启时间段内逐渐降低，例如，以线性降低或曲线降低的方式，从而现降温效果与功率消耗的平衡，以节省液冷系统40的功耗。
可选地，在一些实施例中，电池11还可以包括探测器12，用于采集电池11中电池单体110的运行状态，并根据运行状态确定存在热失控的电池单体111，并向电池管理系统13发送异常指示信息。
应理解，多个电池中的每个电池11都包含探测器12，电池11在使用时，探测器12可以对电池11内部的每个电池单体110进行实时检测，以确定电池单体110是否处于安全范围内，从而确定电池单体110是否发生异常，即电池单体110是否发生热失控。
探测器12采集到电池单体110的运行状态后，可以根据该运行状态判断是否存在热失控的电池单体111。一般地，确定存在热失控的电池单体111可以依据以下特征：监测点的温度达到制造商规定的最高工作温度；触发对象产生电压降，且下降值与初始电压的比例超过预设比例。其中，当上述任意一种特征发生时，确定存在热失控的电池单体111。
可选地，在一些实施例中，探测器12还可以包括气感传感器、烟感传感器以及电解液传感器中至少一个。
应理解，除了常规使用的温度传感器和电压传感器检测电池单体110的运行状态，本申请实施例还可以利用气味传感器、烟感传感器或电解液传感器检测电池单体110是否发生热失控。也就是说，确定存在热失控的电池单体111还可以依据以下特征： 监测点检测识别到特定气味；监测点检测识别到烟雾；漏液感应线检测到液体。其中，当上述任意一种特征发生时，确定存在热失控的电池单体111。
上述实施例中，在电池11中增加了多样化传感器，可使得电池管理系统13能够以更多途径确定是否存在热失控的电池单体111，以快速响应该异常情况，提高了储能系统20的安全性。
可选地，在一些实施例中，储能系统20的供电系统在存在热失控的电池单体111时，停止向液冷系统40供电，储能系统20还可以包括备用电源60，用于供电系统60停止向液冷系统40供电后，向热管理单元41和第一水泵1431供电。
应理解，要实现上述储能系统20中第一电池的主动降温策略，保证液冷机组40的供电是关键，尤其是要保证液冷系统40中热管理单元41与第一水泵1431的供电。常规的液冷系统40只有一路供电，即供电系统提供的电能，可以将供电系统理解为市电。但当发生热失控的电池单体111时，供电系统会停止向液冷系统40供电，为了应对该情况，本申请实施例中的储能系统20配备了备用电源60，可以在供电系统停止向液冷系统40供电后，保证热管理单元41和第一水泵1431的供电，以对热失控的电池单体111所在的第一电池15进行降温，保证储能系统20内部不发生热扩散，从而提高储能系统20的安全性。
示例性的，备用电源60可以是蓄电池，蓄电池可以向热管理单元41和水泵143供电。具体地，当存在热失控的电池单体111时，电池管理系统40控制蓄电池向热管理单元41和第一水泵1431供电，且在蓄电池向热管理单元41和第一水泵1431输出电流时，热管理单元41开始接收电池管理系统13的指示信息，第一水泵1431开始运转，以控第一水泵1431与第一电池15连接管道中的冷却液循环，以对第一电池15进行降温，防止储能系统20发生热扩散，从而提高储能系统20的安全性。
可选地，在一些实施例中，参考图4和图5，备用电源60可以通过直流供电电路向热管理单元41和第一水泵1431供电；或备用电源60可以通过逆变器61连接液冷系统40的交流供电电路以向液冷系统40供电，其中逆变器61可以用于将备用电源60的直流电转化为液冷系统40所需的交流电。
应理解，备用电源60通过直流供电电路向热管理单元41和第一水泵1431供电时，备用电源60与热管理单元41和第一水泵1431之间连接，向热管理单元41和第一水泵1431直接传输直流电。
备用电源60通过逆变器61连接液冷系统40的交流供电电路以向液冷系统40供电时，备用电源60与液冷系统40连接电路之间配置逆变器61，备用电源60的直流电经过逆变器61转化为交流电再传输至液冷系统40。
其中逆变器61也可以是其他逆变模块，只要可以将备用电源60输出的直流电转化为液冷系统40所需的直流电即可，以保证液冷系统40的供电，从而保证液冷系统40中热管理单元41和第一水泵1431的正常运行。
上述实施例中，备用电源60可以通过直流供电电路向热管理单元41和向发生热失控的电池单体111所在的第一电池15对应的第一水泵1431进行供电，不仅可以保证液冷系统40的安全性，还可以降低备用电源60的配置容量，节约成本和空间。
应理解，本申请实施例对电路的连接关系不作限定，在实际应用中，图2-图5的各部件之间还可能连接其他的设备。
上文结合图2-图5，详细描述了本申请的储能系统实施例，下文结合图6和图7，详细描述本申请的储能系统热管理的方法实施例，应理解，方法实施例与储能系统实施例相互对应，类似的描述可以参照储能系统实施例。
图6示出了本申请实施例储能系统热管理的方法100的示意性流程图。方法100的执行主体为热管理单元，该热管理单元可以是上述储能系统20的热管理单元41。
如图6所示，该储能系统热管理的方法100可以包括如下步骤。
101，热管理单元41确定热失控的电池单体111所在的第一电池15。
102，热管理单元41开启第一电池15对应的第一水泵1431，以对第一电池421进行降温。
可选地，在一些实施例中，在步骤101中，热管理单元41可以接收电池管理系统13发送的第一指示信息，第一指示信息用于指示第一电池15，然后热管理单元41根据第一指示信息确定第一电池15。
可选地，在一些实施例中，第一指示信息可以包括第一电池15的位置信息或标识信息。
可选地，在一些实施例中，方法100还可以包括：热管理单元41接收第二指示信息，第二指示信息包括第一水泵1431的功率信息，热管理单元41还根据该第二指示信息调节第一水泵1431的功率。
图7示出了本申请实施例储能系统热管理的方法200的示意性流程图。储能系 统热管理的方法200的执行主体为电池管理系统，该电池管理系统可以是上述储能系统20的电池管理系统13。
如图7所示，该储能系统热管理的方法200可以包括如下步骤：
201，电池管理系统13接收异常指示信息，该异常指示信息用于指示存在热失控的电池单体111。
202，电池管理系统13根据异常指示信息确定热失控的电池单体111所在的第一电池15。
203，电池管理系统向热管理单元41发送第一指示信息，第一指示信息用于指示第一电池150，以使热管理单元41开启第一电池150对应的第一水泵1431，对该第一电池150进行降温。
可选地，在一些实施例中，第一指示信息可以包括第一电池150的位置信息或标识信息。
可选地，在一些实施例中，方法200还可以包括：电池管理系统13确定第一水泵1431的功率，然后向热管理单元41发送第二指示信息，第二指示信息包括第一水泵1431的功率信息。
可选地，在一些实施例中，电池管理系统13确定第一水泵1431的功率时可以获取热失控的电池单体111的运行状态，然后根据热失控的电池单体111的运行状态确定第一水泵1431的功率。
可选地，在一些实施例中，电池管理系统13确定第一水泵1431的功率时可以根据第一水泵1431的开启时间段确定第一水泵1431的功率。
可选地，在一些实施例中，电池管理系统13根据第一水泵1431的开启时间段确定第一水泵1431的功率可以是该时间段包括多个子时间段，其中至少两个子时间段内第一水泵1431的功率不同，或者也可以是第一水泵1431的功率在时间段内逐渐降低。
图8示出了本申请实施例提供的一种储能系统热管理的装置800的示意性结构框图。
如图8所示，该装置800包括：至少一个处理器810和存储器820，该存储器820用于存储程序，该至少一个处理器810用于从存储器820中调用并运行该程序以执行上述任一实施例所提供的储能系统热管理的方法。例如，该装置800可以是上述热 管理单元141，执行上述任一实施例所提供的储能系统热管理的方法100，该装置800也可以是电池管理系统13，执行上述任一实施例所提供的储能系统热管理的方法200。
本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质存储有计算机程序，当该计算机程序在计算机设备上运行时，使得计算机设备执行上述任一实施例所提供的储能系统热管理的方法。
本申请实施例还提供一种包含计算机程序的计算机程序产品，当其在计算机设备上运行时，使得计算机设备执行上述任一实施例所提供的储能系统热管理的方法。
本申请实施例还提供一种芯片，该芯片包括处理器与数据接口，其中，处理器通过所述数据接口读取存储器上存储的指令，以执行上述任一实施例所提供的储能系统热管理的方法。
在具体实现过程中，该芯片可以为中央处理器(CPU)、微控制器(Micro Controller Unit，MCU)、微处理器(Micro Processing Unit，MPU)、数字信号处理器(DSP)、片上系统(System On Chip，SoC)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或可编辑逻辑器件(programmable logic device，PLD)的形式实现。
可选地，在具体实现中，该处理器的个数不做限制。该处理器是通用处理器，可选地，该通用处理器能够通过硬件来实现或通过软件来实现。当通过硬件实现时，该处理器是逻辑电路、集成电路等；当通过软件来实现时，该处理器是一个通用处理器，通过读取存储器中存储的软件代码来实现，该存储器集成在处理器中，位于该处理器之外，独立存在。
上述实施例，全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例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或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。
可选地，所述计算机为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令能够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，所述计算机指令从一个网站站点、计算机、服务器或数据中心通过有线(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 多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质，例如固态硬盘。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示存在三种关系，例如，A和/或B，表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A，B是单数或者复数。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系，但也可能表示的是一种“和/或”的关系，具体可参考前后文进行理解。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c是单个或者多个。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员能够意识到，结合本文中所公开的实施例描述的各示例的模块及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员能够对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员能够清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和模块的具体工作过程，请参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，能够通过其它的方式实现。
例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块的划分，仅仅为一种逻辑功能划分，实际实现时能够有另外的划分方式，例如多个模块或组件结合或者集成到另一个系统，或一些特征能够被忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接是通过一些接口，装置或模块的间接耦合 或通信连接，是电性，机械或其它的形式。
可选地，在本申请各个实施例中的各功能模块能够集成在一个处理装置中，可选地，是各个模块单独物理存在，或者两个或两个以上模块集成在一个模块中。
所述功能如果以软件功能模块的形式实现并作为独立的产品销售或使用时，能够存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分能够以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM)、随机存取存储器(RAM)、磁碟或者光盘等各种能够存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (25)

  1. 一种储能系统，其特征在于，所述储能系统包括多个电池和液冷系统；所述液冷系统包括与所述多个电池对应的多个水泵和热管理单元；
    所述热管理单元用于确定热失控的电池单体所在的第一电池，并开启所述第一电池对应的第一水泵，以对所述第一电池进行降温。
  2. 根据权利要求1所述的储能系统，其特征在于，所述储能系统还包括电池管理系统；
    所述热管理单元用于接收所述电池管理系统发送的第一指示信息，所述第一指示信息用于指示所述第一电池；
    根据所述第一指示信息确定所述第一电池。
  3. 根据权利要求2所述的储能系统，其特征在于，所述第一指示信息包括所述第一电池的位置信息或标识信息。
  4. 根据权利要求2或3所述的储能系统，其特征在于，
    所述电池管理系统用于接收异常指示信息，所述异常指示信息用于指示存在所述热失控的电池单体；
    根据所述异常指示信息确定所述热失控的电池单体所在的所述第一电池，并向所述热管理单元发送所述第一指示信息。
  5. 根据权利要求2至4中任一项所述的储能系统，其特征在于，
    所述热管理单元还用于接收所述电池管理系统发送的第二指示信息，所述第二指示信息包括所述第一水泵的功率信息；
    所述热管理单元还用于根据所述第二指示信息调节所述第一水泵的功率。
  6. 根据权利要求5所述的储能系统，其特征在于，所述电池管理系统还用于确定所述第一水泵的功率，并向所述热管理单元发送所述第二指示信息。
  7. 根据权利要求6所述的储能系统，其特征在于，所述电池管理系统用于获取所述热失控的电池单体的运行状态，并根据所述热失控的电池单体的运行状态确定所述第一水泵的功率。
  8. 根据权利要求6所述的储能系统，其特征在于，所述电池管理系统用于根据所述第一水泵的开启时间段确定所述第一水泵的功率。
  9. 根据权利要求8所述的储能系统，其特征在于，所述时间段包括多个子时间段，其中至少两个所述子时间段内所述第一水泵的功率不同；或所述第一水泵的功率在所述时间段内逐渐降低。
  10. 根据权利要求4至9中任一项所述的储能系统，其特征在于，所述电池还包括探测器，用于采集所述电池中电池单体的运行状态，并根据所述运行状态确定存在所述热失控的电池单体，并向所述电池管理系统发送所述异常指示信息。
  11. 根据权利要求10所述的储能系统，其特征在于，所述探测器包括气味传感器、烟雾传感器以及电解液漏液传感器中至少一个。
  12. 根据权利要求1至11所述的储能系统，其特征在于，所述储能系统的供电系统在存在所述热失控的电池单体时，停止向所述液冷系统供电；
    所述储能系统还包括备用电源，用于所述供电系统停止向所述液冷系统供电后，向所述热管理单元和所述第一水泵供电。
  13. 根据权利要求12所述的储能系统，其特征在于，
    所述备用电源通过直流供电电路向所述热管理单元和所述第一水泵供电；或
    所述备用电源通过逆变器连接所述液冷系统的交流供电电路以向所述液冷系统供电，其中所述逆变器用于将所述备用电源的直流电转化为所述液冷系统所需的交流电。
  14. 一种储能系统热管理的方法，其特征在于，所述储能系统包括多个电池和液冷系统；所述液冷系统包括与所述多个电池对应的多个水泵和热管理单元；
    所述方法包括：
    所述热管理单元确定热失控的电池单体所在的第一电池；
    所述热管理单元开启所述第一电池对应的所述第一水泵，以对所述第一电池进行降温。
  15. 根据权利要求14所述的方法，其特征在于，所述热管理单元确定热失控的电池单体所在的第一电池包括：
    所述热管理单元接收电池管理系统发送的第一指示信息，所述第一指示信息用于指示所述第一电池；
    所述热管理单元根据所述第一指示信息确定所述第一电池。
  16. 根据权利要求15所述的方法，其特征在于，所述第一指示信息包括所述第一电池的位置信息或标识信息。
  17. 根据权利要求14至16中任一项所述的方法，其特征在于，所述方法还包括：
    所述热管理单元接收第二指示信息，所述第二指示信息包括所述第一水泵的功率信息；
    所述热管理单元根据所述第二指示信息调节所述第一水泵的功率。
  18. 一种储能系统热管理的方法，其特征在于，所述储能系统包括多个电池、液冷系统和电池管理系统；所述液冷系统包括与所述多个电池对应的多个水泵和热管理单元；
    所述方法包括：
    所述电池管理系统接收异常指示信息，所述异常指示信息用于指示存在热失控的电池单体；
    所述电池管理系统根据所述异常指示信息确定所述热失控的电池单体所在的第一电池；
    所述电池管理系统向所述热管理单元发送第一指示信息，所述第一指示信息用于指示所述第一电池，以使所述热管理单元开启所述第一电池对应的第一水泵，对所述第一电池进行降温。
  19. 根据权利要求19所述的方法，其特征在于，所述第一指示信息包括所述第一电池的位置信息或标识信息。
  20. 根据权利要求18或19所述的方法，其特征在于，所述方法还包括：
    所述电池管理系统确定所述第一水泵的功率；
    所述电池管理系统向所述热管理单元发送所述第二指示信息，所述第二指示信息包括所述第一水泵的功率信息。
  21. 根据权利要求20所述的方法，其特征在于，所述电池管理系统确定所述第一水泵的功率包括：
    所述电池管理系统获取所述热失控的电池单体的运行状态，并根据所述热失控的电池单体的运行状态确定所述第一水泵的功率。
  22. 根据权利要求20所述的方法，其特征在于，所述电池管理系统确定所述第一水泵的功率包括：
    所述电池管理系统根据所述第一水泵的开启时间段确定所述第一水泵的功率。
  23. 根据权利要求22所述的方法，其特征在于，所述时间段包括多个子时间段，其中至少两个所述子时间段内所述第一水泵的功率不同；或所述第一水泵的功率在所述时间段内逐渐降低。
  24. 一种储能系统热管理的装置，其特征在于，包括处理器和存储器，所述存储器用于存储程序，所述处理器用于从所述存储器中调用并运行所述程序以执行权利要求14至23中任一项所述的储能系统热管理的方法。
  25. 一种计算机可读存储介质，其特征在于，包括计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行权利要求14至23中任一项所述的储能系统热管理的方法。
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