High-safety battery operation management system and method

Abstract

A high-safety battery operation management system and method, relating to the technical field of energy storage battery safety. The battery operation management system comprises a battery state monitoring subsystem, an energy management subsystem, and a safety control subsystem. The safety control subsystem is independent of the energy management subsystem, and controls a temperature control unit and a fire protection unit separately, avoiding complex control processes and raising the priority of control over temperature management and fire protection management by the safety control subsystem, thereby implementing rapid control and rapid response and ensuring the safety in battery operation; in addition, data interaction can be conducted between the energy management subsystem and the safety control subsystem, and intelligent preheating of the working environment of a battery is implemented, enabling the battery to be in an optimal operation state.

Description

High-safety battery operation management system and method TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage battery safety, in particular to a high-safety battery operation management system and method. BACKGROUND

[0002] With the vigorous development of the energy storage market, the installed capacity of energy storage gradually increases, and energy storage safety receives more and more attention. The safety of energy storage batteries mainly reflects in thermal management safety and fire safety. However, there are still the following problems in the current energy storage safety: control dispersion. In the current system control, fire management and thermal safety management are controlled by an energy management system, and there is a problem of control dispersion. When the energy management system regulates and controls fire management, thermal safety management and battery operation, there is complex information interaction, and it cannot respond in time when the energy storage system has a safety hazard. In addition, the control priority of energy storage fire management and thermal management in the energy storage system control is insufficient, and it is under the control of the energy management system. When the system has a safety hazard, it cannot act in time, and also needs a complex interaction process, which delays the safety control of the battery.

[0003] Therefore, for the safety operation of the energy storage battery, the control process is complicated under the control of the energy management system. For the thermal management and fire management of the energy storage battery, it cannot be quickly controlled and responded, and the energy storage battery has potential safety hazards. SUMMARY

[0004] In order to further improve the operation safety of the energy storage battery and speed up the response speed of the thermal management and fire management, the present application provides a high-safety battery operation management system and method.

[0005] A high-safety battery operation management system, the battery operation management system comprises: a battery state monitoring subsystem, an energy management subsystem, and a safety control subsystem.

[0006] The battery state monitoring subsystem collects the state of charge parameters and safety state parameters of the energy storage battery in real time, and sends the state of charge parameters to the energy management subsystem and the safety state parameters to the safety control subsystem. The energy management subsystem controls the charge and discharge power of the energy storage battery according to the state of charge parameters. The safety control subsystem controls the temperature control and fire control of the energy storage battery according to the safety state parameters. The energy management subsystem sends historical charge and discharge data to the safety control subsystem, and the safety control subsystem sends temperature adjustment reply data to the energy management system.

[0007] Preferably, the safety control subsystem comprises a safety management unit, a temperature control unit and a fire control unit.

[0008] The temperature control unit and the fire control unit are arranged corresponding to the energy storage battery, the safety management unit receives the safety state parameter and makes a thermal runaway judgment, formulates a thermal regulation instruction and sends it to the temperature control unit, or formulates a fire control instruction and sends it to the fire control unit; the thermal regulation instruction is a heating instruction or a refrigeration instruction.

[0009] Preferably, the temperature control unit comprises an execution subunit, a heating subunit and a refrigeration subunit.

[0010] The execution subunit is electrically connected with the heating subunit and controls the start and stop of the heating subunit according to the heating instruction; the execution subunit is electrically connected with the refrigeration subunit and controls the start and stop of the refrigeration subunit according to the refrigeration instruction.

[0011] A high-safety battery operation management method, comprising:

[0012] The battery state monitoring subsystem collects the state of charge parameter and the safety state parameter of the energy storage battery in real time, the safety control subsystem judges whether the energy storage battery is in a thermal runaway state according to the safety state data; if not, the energy storage battery is controlled to be in an optimal operating temperature, and the energy management subsystem controls the charging and discharging of the energy storage battery according to the state of charge parameter; if it is in a thermal runaway state, the energy management subsystem controls the energy storage battery to stop charging and discharging, and the safety control subsystem performs a fire control operation on the energy storage battery.

[0013] Preferably, the control of the energy storage battery to be in an optimal operating temperature comprises:

[0014] The safety management unit in the safety control subsystem judges whether the energy storage battery is in an optimal operating temperature according to the safety state parameter, if not, formulates a temperature control instruction and sends it to the safety control subsystem; otherwise, no temperature control instruction is formulated; the execution subunit in the safety control subsystem discriminates the type of the temperature control instruction and controls the start and stop of the heating subunit or the refrigeration subunit.

[0015] Preferably, before the safety control subsystem controls the energy storage battery to be in an optimal operating temperature, it further comprises:

[0016] The safety management unit receives historical charging and discharging data from the energy management subsystem and performs temperature pre-adjustment according to the historical charging and discharging data; after the safety management unit performs temperature adjustment, it generates temperature adjustment receipt data and sends it to the energy management subsystem.

[0017] Preferably, the energy management subsystem controls the energy storage battery to stop charging and discharging, the safety control subsystem performs a fire-fighting operation on the energy storage battery, including:

[0018] The safety management unit formulates a fire-fighting instruction according to the safety state parameter and sends the fire-fighting instruction to a fire-fighting unit in the safety control subsystem; the fire-fighting unit performs a fire-fighting operation according to the fire-fighting instruction.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The technical scheme provided by the present application comprises: a battery state monitoring subsystem, an energy management subsystem, and a safety control subsystem, wherein the safety control subsystem is independent of the energy management subsystem, and independently controls a temperature control unit and a fire-fighting unit, thereby avoiding a complex control process, improving the control priority of the safety control subsystem for temperature management and fire-fighting management, realizing rapid control and rapid response, and ensuring safe operation of the battery; in addition, the energy management subsystem and the safety control subsystem can exchange data, and the safety control subsystem can intelligently preheat the battery operating environment, so that the battery is in an optimal operating state. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a composition diagram of the battery operation management system in the present application. DETAILED DESCRIPTION

[0022] In order to better understand the present application, the content of the present application will be further described below in combination with the drawings and examples of the specification. EMBODIMENT

[0023] The present embodiment provides a high-safety battery operation management system, comprising: a battery state monitoring subsystem, an energy management subsystem, and a safety control subsystem.

[0024] The battery state monitoring subsystem collects real-time state-of-charge parameters and safety state parameters of the energy storage battery, and sends the state-of-charge parameters to the energy management subsystem and the safety state parameters to the safety control subsystem; the energy management subsystem controls the charging and discharging power of the energy storage battery according to the state-of-charge parameters; the safety control subsystem controls temperature control and fire-fighting control of the energy storage battery according to the safety state parameters; the energy management subsystem sends historical charging and discharging data to the safety control subsystem, and the safety control subsystem sends temperature adjustment reply data to the energy management system.

[0025] The safety control subsystem comprises: a safety management unit, a temperature control unit, and a fire-fighting unit.

[0026] The temperature control unit and the fire-fighting unit are configured corresponding to the energy storage battery. The safety management unit receives the safety status parameters and performs thermal runaway determination, and formulates a thermal regulation command and sends it to the temperature control unit, or formulates a fire-fighting command and sends it to the fire-fighting unit; the thermal regulation command is a heating command or a cooling command.

[0027] The temperature control unit includes: an execution subunit, a heating subunit, and a cooling subunit;

[0028] The execution subunit is electrically connected to the heating subunit and controls the start and stop of the heating subunit according to the heating command; the execution subunit is also electrically connected to the cooling subunit and controls the start and stop of the cooling subunit according to the cooling command. Example

[0029] Based on the same inventive concept, this embodiment provides a highly secure battery operation management method, including:

[0030] The battery status monitoring subsystem collects the state of charge (SOC) and safety status parameters of the energy storage battery in real time. The safety control subsystem determines whether the energy storage battery is in a thermal runaway state based on the safety status data. If it is not in a thermal runaway state, the subsystem adjusts the energy storage battery to the optimal operating temperature. The energy management subsystem controls the charging and discharging of the energy storage battery based on the SOC parameters.

[0031] The above process includes:

[0032] Step 1: The safety management unit in the safety control subsystem determines whether the energy storage battery is at its optimal operating temperature based on the safety status parameters. If it is not at its optimal operating temperature, a temperature control command is generated and sent to the safety control subsystem; otherwise, no temperature control command is generated.

[0033] Step 2: The execution subunit in the safety control subsystem determines the type of the temperature control command and controls the heating subunit or the cooling subunit to start or stop.

[0034] Before step one, the process also includes: the safety management unit receiving historical charge and discharge data from the energy management subsystem and performing temperature pre-adjustment based on the historical charge and discharge data; after performing temperature adjustment, the safety management unit generating temperature adjustment receipt data and sending it to the energy management subsystem.

[0035] If the energy storage battery is in a thermal runaway state, the energy management subsystem controls the energy storage battery to stop charging and discharging, and the safety control subsystem performs fire-fighting operations on the energy storage battery.

[0036] The above process includes:

[0037] The safety management unit formulates a fire-fighting instruction according to the safety state parameter and sends the fire-fighting instruction to a fire-fighting unit in the safety control subsystem; the fire-fighting unit performs a fire-fighting operation according to the fire-fighting instruction. Embodiment

[0038] The embodiment details a temperature control process in a high-safety battery operation management system,

[0039] In the application, the energy storage battery performs charging and discharging operation under the control of the energy management subsystem, releases heat, and the temperature rises, the battery state monitoring subsystem transmits the collected battery state parameter data to the energy management subsystem and the safety control subsystem, the safety control subsystem judges whether the current temperature control parameter needs to be changed according to the state data, when the refrigerating capacity needs to be increased, the safety control subsystem issues a command of increasing the refrigerating capacity to the thermal management subsystem, the thermal management subsystem increases the refrigerating capacity according to the command, and the energy storage battery is cooled, when the temperature returns to the normal range, the battery state monitoring subsystem transmits the data to the safety control subsystem, and the safety control subsystem issues a command of reducing the refrigerating capacity to the thermal management subsystem, and the thermal management subsystem reduces the refrigerating capacity accordingly.

[0040] In the application, when the energy storage battery starts in an environment below 0 DEG C, the battery state monitoring subsystem transmits the battery state parameter data to the safety control subsystem, the safety control subsystem judges according to the battery state parameter data, and heats the energy storage battery, when the temperature of the energy storage battery rises to the normal working temperature, the battery state monitoring subsystem transmits the battery state data to the safety control subsystem, and the safety control subsystem issues a command of stopping heating, and the temperature control unit stops heating according to the command.

[0041] When the energy management subsystem needs to perform charging and discharging operation on the energy storage battery, the safety control subsystem intelligently judges according to the past battery charging and discharging data, and issues a pre-cooling / pre-heating command to the temperature control unit in advance, so that the energy storage battery is in the best operation state before performing the charging and discharging operation, which is beneficial to the charging and discharging operation of the system.

[0042] When the battery state monitoring subsystem detects that the energy storage battery temperature data abnormally rises, the data is transmitted to the safety control subsystem, the safety control subsystem issues a command to increase the local refrigeration amount to the temperature control unit according to the data, the temperature control unit increases the refrigeration amount at the abnormal position of the energy storage battery according to the command, and cools the energy storage battery; when the temperature control unit cools the energy storage battery, and the temperature of the energy storage battery still rises, the battery state monitoring subsystem transmits the battery state parameters to the energy management subsystem, and stops the energy storage battery charging and discharging operation at the position; when the energy management subsystem charging and discharging operation is stopped, and the temperature of the energy storage battery still rises, the battery state monitoring subsystem transmits the battery state parameters to the safety control subsystem, the safety control subsystem judges whether the energy storage battery is in a thermal runaway state according to the transmitted data, when it is judged that the energy storage battery is in a thermal runaway state, the action command is issued to the fire extinguishing unit and the temperature control unit at the same time, the temperature control unit immediately discharges the system internal refrigerant, the fire extinguishing unit releases the fire extinguishing agent, and the system is handled for fire extinguishing.

[0043] Obviously, the described embodiments are part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

Claims

1. A high-safety battery operation management system, characterized in that, The battery operation management system includes: a battery status monitoring subsystem, an energy management subsystem, and a safety control subsystem; The battery status monitoring subsystem collects the state of charge parameters and safety status parameters of the energy storage battery in real time, and sends the state of charge parameters to the energy management subsystem and the safety status parameters to the safety control subsystem. The energy management subsystem controls the charging and discharging power of the energy storage battery based on the state of charge parameters; the safety control subsystem controls the temperature control and fire protection control of the energy storage battery based on the safety status parameters. The energy management subsystem sends historical charge and discharge data to the safety control subsystem, and the safety control subsystem sends temperature adjustment feedback data to the energy management system.

2. The high-safety battery operation management system as described in claim 1, characterized in that, The safety control subsystem includes: a safety management unit, a temperature control unit, and a fire protection unit; The temperature control unit and the fire-fighting unit are set up corresponding to the energy storage battery. The safety management unit receives the safety status parameters and performs thermal runaway determination, and formulates thermal regulation instructions to send to the temperature control unit, or formulates fire-fighting instructions to send to the fire-fighting unit. The thermal regulation command is either a heating command or a cooling command.

3. The high-safety battery operation management system as described in claim 2, characterized in that, The temperature control unit includes: an execution subunit, a heating subunit, and a cooling subunit; The execution subunit is electrically connected to the heating subunit and controls the start and stop of the heating subunit according to the heating command; The execution subunit is electrically connected to the refrigeration subunit and controls the start and stop of the refrigeration subunit according to the refrigeration command.

4. A highly secure battery operation management method, characterized in that, include: The battery status monitoring subsystem collects the state of charge parameters and safety status parameters of the energy storage battery in real time, and the safety control subsystem determines whether the energy storage battery is in a thermal runaway state based on the safety status data. If it is not in a state of thermal runaway, the energy storage battery is regulated to the optimal operating temperature, and the energy management subsystem controls the charging and discharging of the energy storage battery according to the state of charge parameters. If thermal runaway occurs, the energy management subsystem controls the energy storage battery to stop charging and discharging, and the safety control subsystem performs fire suppression operations on the energy storage battery.

5. The high-safety battery operation management method as described in claim 4, characterized in that, The regulation of the energy storage battery to the optimal operating temperature includes: The safety management unit in the safety control subsystem determines whether the energy storage battery is at its optimal operating temperature based on the safety status parameters. If it is not at its optimal operating temperature, it generates a temperature control command and sends it to the safety control subsystem; otherwise, it does not generate a temperature control command. The execution subunit in the safety control subsystem determines the type of the temperature control command and controls the heating subunit or the cooling subunit to start or stop.

6. The high-safety battery operation management method as described in claim 5, characterized in that, The safety control subsystem regulates the energy storage battery to its optimal operating temperature, and prior to this, it also includes: The safety management unit receives historical charge and discharge data from the energy management subsystem and performs temperature pre-adjustment based on the historical charge and discharge data; After the safety management unit adjusts the temperature, it generates a temperature adjustment receipt and sends it to the energy management subsystem.

7. The high-safety battery operation management method as described in claim 5, characterized in that, The energy management subsystem controls the charging and discharging of the energy storage battery, and the safety control subsystem performs fire-fighting operations on the energy storage battery, including: The safety management unit formulates fire-fighting instructions based on the safety status parameters and sends them to the fire-fighting unit in the safety control subsystem; The fire-fighting unit performs fire-fighting operations according to the fire-fighting command.

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