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CN-122025871-A - Energy storage system, control method, storage medium and electric equipment

CN122025871ACN 122025871 ACN122025871 ACN 122025871ACN-122025871-A

Abstract

The application discloses an energy storage system, a control method, a storage medium and electric equipment, wherein the energy storage system comprises a battery and a battery management system, the battery management system comprises a slave control module and a master control module, a valve is arranged between at least one slave control module and a corresponding battery, and the valve is configured to have a first valve opening. Under the condition that the valve is at the first valve opening, the electric energy interaction between at least one slave control module and the corresponding battery is disconnected, so that the master control module can be awakened to execute the preset energy control. Through mechanical valve, control from the accuse module with the electric energy interaction between the battery that corresponds, need not to set up alone and discern the sensor of valve state and carry out the transmission of sensor signal, effectively reduced battery system's structure complexity, avoid the mistake under the non-fault scene to wake up simultaneously.

Inventors

  • WANG XIAOBIN
  • GUO LONGQING
  • FENG YANQIANG
  • XU YUHONG

Assignees

  • 惠州亿纬锂能股份有限公司

Dates

Publication Date
20260512
Application Date
20251231

Claims (15)

  1. 1. An energy storage system, the energy storage system comprising: A battery; the battery management system comprises a main control module and at least two slave control modules which form electric connection, wherein the slave control modules and the corresponding batteries form electric energy interaction, and The valve is arranged between at least one slave control module and the corresponding battery, and is configured to have a first valve opening; And under the condition that the valve is at the first valve opening, at least one slave control module is disconnected from the corresponding battery in an electric energy interaction manner so as to wake up the master control module to execute a preset function.
  2. 2. The energy storage system of claim 1, wherein the energy storage system comprises, The valve is further configured to have a second valve opening; Under the condition that the valve is at the second valve opening, electric energy interaction is formed between the slave control module and the battery, so that the slave control module obtains the operation parameters of the battery; The second valve opening is smaller than the first valve opening.
  3. 3. The energy storage system of claim 2, wherein the energy storage system comprises, The first valve opening comprises a maximum opening, and/or The second valve opening comprises a minimum opening.
  4. 4. The energy storage system of claim 1, wherein the energy storage system comprises, And a first loop is arranged between each slave control module and the corresponding battery, and the valve is arranged in one of the first loops so as to control the on-off of the first loop in which the valve is positioned.
  5. 5. The energy storage system of claim 1, wherein the energy storage system comprises, The battery management system is further configured to maintain the power interaction between the remaining slave modules and the battery in the case that the power interaction between one of the slave modules and the battery is disconnected, and each of the remaining slave modules is electrically connected with the master control module.
  6. 6. The energy storage system of any of claims 1 to 5, wherein, The battery management system further includes: the temperature detection module is used for detecting temperature data of the battery; each temperature detection module is connected with the corresponding slave control module.
  7. 7. The energy storage system of any of claims 1 to 5, wherein, The battery management system further includes: the voltage detection module is used for detecting voltage data of the battery; each voltage detection module is connected with the corresponding slave control module.
  8. 8. The energy storage system of any of claims 1 to 5, wherein, The energy storage system is further configured to enable the valve to be at a first valve opening under the action of air pressure when the air pressure in the energy storage system reaches a first air pressure threshold value.
  9. 9. The energy storage system of any of claims 1 to 5, wherein, The preset function at least comprises one of the following: collecting temperature data of a battery; Collecting voltage data of a battery; Pressure data inside the battery is collected.
  10. 10. A control method of an energy storage system, applied to the energy storage system according to any one of claims 1 to 9, the method comprising: and under the condition that the valve is at the opening of the first valve, the electric energy interaction between at least one slave control module and the corresponding battery is disconnected so as to wake up the master control module to execute a preset function.
  11. 11. The control method according to claim 10, characterized in that the method further comprises: And under the condition that the valve is at the second valve opening, electric energy interaction is formed between the slave control module and the battery, so that the slave control module obtains the operation parameters of the battery.
  12. 12. The control method according to claim 10, characterized in that the method further comprises: And under the condition that the electric energy interaction between one slave control module and the battery is disconnected, the rest slave control modules keep electric energy interaction with the battery.
  13. 13. The control method according to claim 10, characterized in that the method further comprises: detecting temperature data of the battery, and/or Voltage data of the battery is detected.
  14. 14. A computer readable storage medium, having stored thereon a computer program, the computer program being loaded by a processor to perform the steps of the method of any of claims 10 to 13.
  15. 15. A powered device comprising the energy storage system of any of claims 1-9.

Description

Energy storage system, control method, storage medium and electric equipment Technical Field The application relates to the technical field of battery thermal management, in particular to an energy storage system, a control method, a storage medium and electric equipment. Background Thermal runaway is a serious safety failure of battery systems. When a certain cell triggers thermal runaway, a large amount of high-temperature gas and heat can be instantaneously generated, so that the internal pressure and temperature of the energy storage system are rapidly increased. If the high temperature and flame cannot be effectively isolated, the adjacent cells can be triggered to generate a chain thermal runaway reaction, namely heat spreading, and finally the whole energy storage system can be triggered to fire and explode. The BMS can collect signals of voltage, temperature, pressure, etc. in real time when the vehicle is running (operating state) to determine whether thermal runaway occurs. However, when the vehicle is in a stopped state, the BMS may enter a sleep mode in order to save power. In the parking stall state, most of the sensing functions of the BMS are turned off. If the battery is thermally out of control at this time, the BMS cannot sense and wake up by itself, and thus cannot perform a corresponding malfunction operation. In the related art, the wake-up of the BMS depends on an electronic wake-up signal, and the reliability is low. Disclosure of Invention The embodiment of the application provides an energy storage system, a control method, a storage medium and electric equipment, which improve the awakening reliability of a battery management system and at least partially solve the technical problems. To achieve the above object, according to a first aspect of the present application, there is provided an energy storage system comprising: A battery; the battery management system comprises a main control module and at least two slave control modules which form electric connection, wherein the slave control modules and the corresponding batteries form electric energy interaction, and The valve is arranged between at least one slave control module and the corresponding battery, and is configured to have a first valve opening; And under the condition that the valve is at the first valve opening, at least one slave control module is disconnected from the corresponding battery in an electric energy interaction manner so as to wake up the master control module to execute a preset function. In the embodiment of the application, a valve is arranged between at least one slave control module and a corresponding battery, and the valve is configured to have a first valve opening. Under the condition that the valve is at the first valve opening, the electric energy interaction between at least one slave control module and the corresponding battery is disconnected, so that the master control module can be awakened to execute the preset energy control. Through mechanical valve, control from accuse and the electric energy interaction between the battery that corresponds, need not to set up alone and discern the sensor of valve state and carry out the transmission of sensor signal, effectively reduced battery system's structure complexity, avoid the mistake under the non-fault scene to wake up. Optionally, the valve is further configured to have a second valve opening; Under the condition that the valve is at the second valve opening, electric energy interaction is formed between the slave control module and the battery, so that the slave control module obtains the operation parameters of the battery; The second valve opening is smaller than the first valve opening. The second valve opening of the valve is related to the normal working state of the slave control module, so that the electric energy of the slave control module and the electric energy of the battery can be kept in a state of forming electric energy interaction, and the normal working of the slave control module is ensured. Optionally, the first valve opening comprises a maximum opening. Under the condition that the valve is positioned at the opening degree of the first valve, after the valve cover, the valve rod and the insulating connecting piece move a certain distance along the first direction, the conducting piece can move to the disconnection position along the first direction, and the conducting piece is disconnected with the first external conducting piece and the second external conducting piece respectively at the connection position, so that a current flow path among the first external conducting piece, the conducting piece and the second external conducting piece is disconnected, and the first external conducting piece and the second external conducting piece are respectively connected with the slave control module and the battery, so that electric energy interaction between the slave control module and the battery is disconnected. Therefore