CN-119674347-B - Control method and device of energy storage system, chip, medium and program product

CN119674347BCN 119674347 BCN119674347 BCN 119674347BCN-119674347-B

Abstract

The embodiment of the application provides a control method, a device, an energy storage system, a chip, a medium and a program product of an energy storage system, wherein the energy storage system comprises a water cooling unit, the control method comprises the steps of determining that the water cooling unit is in a dormant state, periodically detecting the water cooling unit during the dormant period of the water cooling unit, wherein the water cooling unit is in at least two modes of a refrigerating mode, a heating mode and a self-circulation mode in the periodical detection process of the water cooling unit, and sending fault information of the water cooling unit under the condition that the water cooling unit breaks down. The water cooling unit can stably operate after being awakened, the risk of shutdown of the water cooling unit is reduced, and the overall reliability and stability of the whole energy storage system are improved.

Inventors

HUANG YANCONG
ZHANG KAIWEN
LI ZHONGHONG
Qiu Huayan

Assignees

宁德时代新能源科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250224

Claims (13)

1. The control method of the energy storage system is characterized in that the energy storage system comprises a water cooling unit, the water cooling unit comprises a water cooling controller, a compressor, a heat exchanger, a first pressure sensor, a condenser and a second pressure sensor, wherein the first pressure sensor, the condenser and the second pressure sensor are arranged between the compressor and the condenser, and the control method comprises the following steps of: the water cooling controller determines that the water cooling unit is in a dormant state; the water cooling controller is used for periodically detecting the water cooling unit during the dormancy of the water cooling unit, wherein the water cooling unit is in a refrigeration mode, a heating mode and a self-circulation mode in the process of periodically detecting the water cooling unit, and the self-circulation mode is a mode that a cooling medium circularly flows in a water supply loop in the dormancy state of the water cooling unit; Under the condition that the water cooling unit fails, the water cooling controller sends failure information of the water cooling unit, wherein the failure information comprises pressure failure information, temperature failure information and water pump failure information; Under the condition that the water cooling unit receives a heat management requirement, the water cooling controller stops the periodic detection; wherein the control method further comprises: Receiving data information sent by the first pressure sensor, wherein the data information comprises first pressure data; determining first fault information included in the fault information according to the first pressure data, wherein the first fault information indicates that the heat exchanger is faulty; receiving data information sent by the second pressure sensor, wherein the data information comprises second pressure data; and determining second fault information included in the fault information according to the pressure difference value and preset pressure data, wherein the second fault information indicates that the compressor is in fault, and the pressure difference value is the difference value between the second pressure data and the first pressure data.
2. The control method according to claim 1, characterized in that the control method further comprises: receiving data information sent by a plurality of sensors in the water cooling unit; and confirming the fault information according to the data information.
3. The control method according to claim 2, wherein the water-cooling unit further includes an expansion valve and a first temperature sensor provided in the vicinity of the expansion valve, Receiving data information sent by the first temperature sensor, wherein the data information comprises first temperature data; And determining third fault information included in the fault information according to the first temperature data, wherein the third fault information indicates that the expansion valve breaks down.
4. A control method according to any one of claims 1 to 3, wherein the energy storage system further comprises a battery device and a third pressure sensor, the battery device and the water-cooling unit being connected by a water supply circuit, the third pressure sensor being provided in the water supply circuit, The control method further includes: Receiving data information sent by the third pressure sensor, wherein the data information comprises third pressure data; And determining fourth fault information included in the fault information according to the third pressure data, wherein the fourth fault information indicates that any part of the water cooling unit breaks down.
5. The control method of claim 4, wherein the energy storage system further comprises a second temperature sensor disposed in the water supply circuit, The control method further includes: Receiving data information sent by the second temperature sensor, wherein the data information comprises second temperature data; And determining fifth fault information included in the fault information according to the second temperature data, wherein the fifth fault information indicates that any part of the water cooling unit breaks down.
6. A control method according to any one of claims 1 to 3, characterized in that the control method further comprises: receiving a thermal management demand sent by a battery management system; detecting the water cooling unit according to the thermal management requirement; and under the condition that the water cooling unit fails, sending failure information of the water cooling unit.
7. An energy storage system, comprising: The water cooling unit comprises a water cooling control unit, a compressor, a heat exchanger, a first pressure sensor, a condenser and a second pressure sensor, wherein the first pressure sensor, the condenser and the second pressure sensor are arranged between the compressor and the heat exchanger, the second pressure sensor is arranged between the compressor and the condenser, The water cooling control unit is used for determining that the water cooling unit is in a dormant state, periodically detecting the water cooling unit during the dormant period of the water cooling unit, wherein the water cooling unit is in a refrigerating mode, a heating mode and a self-circulation mode in the process of periodically detecting the water cooling unit, the self-circulation mode is a mode that a cooling medium circularly flows in a water supply loop in the dormant state of the water cooling unit, fault information of the water cooling unit is sent to a battery management system when the water cooling unit breaks down, the fault information comprises pressure fault information, temperature fault information and water pump fault information, and the water cooling control unit is further used for receiving data information sent by the first pressure sensor and comprises first pressure data when the water cooling unit receives a thermal management requirement; According to the first pressure data, the water cooling control unit is further used for determining first fault information included in the fault information, wherein the first fault information indicates that the heat exchanger breaks down; the water cooling control unit is further used for receiving data information sent by the second pressure sensor, and the data information comprises second pressure data; And according to the pressure difference value and preset pressure data, the water cooling control unit is further used for determining second fault information included in the fault information, the second fault information indicates that the compressor is in fault, and the pressure difference value is the difference value between the second pressure data and the first pressure data.
8. A control device of an energy storage system is characterized in that the energy storage system comprises a water cooling unit, a compressor, a heat exchanger, a first pressure sensor, a condenser and a second pressure sensor, wherein the first pressure sensor, the condenser and the second pressure sensor are arranged between the compressor and the condenser, The control device comprises a determining unit and a processing unit, The determining unit is used for determining that the water cooling unit is in a dormant state; The processing unit is used for periodically detecting the water cooling unit during the dormancy of the water cooling unit, wherein the water cooling unit is in a refrigeration mode, a heating mode and a self-circulation mode in the process of periodically detecting the water cooling unit, and the self-circulation mode is a mode that a cooling medium circularly flows in a water supply loop in the dormancy state of the water cooling unit; the processing unit is further used for sending fault information of the water cooling unit to a battery management system under the condition that the water cooling unit breaks down, wherein the fault information comprises pressure fault information, temperature fault information and water pump fault information; The processing unit is further configured to suspend the periodic detection when the water cooling unit receives a thermal management requirement; The processing unit is further used for receiving data information sent by the first pressure sensor, wherein the data information comprises first pressure data; The processing unit is further used for determining first fault information included in the fault information according to the first pressure data, wherein the first fault information indicates that the heat exchanger is faulty; The processing unit is further used for receiving data information sent by the second pressure sensor, and the data information comprises second pressure data; And the processing unit is further used for determining second fault information included in the fault information according to the pressure difference value and preset pressure data, the second fault information indicates that the compressor is in fault, and the pressure difference value is the difference value between the second pressure data and the first pressure data.
9. A control device of an energy storage system, comprising a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the control method of the energy storage system according to any one of claims 1 to 6.
10. An energy storage system, comprising: a water cooling unit for performing the control method of the energy storage system according to any one of the preceding claims 1 to 6.
11. A chip comprising a processor for calling and running a computer program from a memory, so that a device on which the chip is mounted performs the control method of the energy storage system according to any one of claims 1 to 6.
12. A computer readable storage medium, characterized by comprising a computer program stored thereon, which when run on a computer causes the computer to perform the control method of the energy storage system according to any of claims 1 to 6.
13. A computer program product, characterized in that the computer program product comprises instructions for performing the method of controlling an energy storage system according to any one of claims 1 to 6.

Description

Control method and device of energy storage system, chip, medium and program product Technical Field The present application relates to the field of energy storage, and more particularly, to a control method and apparatus for an energy storage system, a chip, a medium, and a program product. Background Under the large background of increasing the support force for the development of new energy technology in the world, various technologies related to energy storage are widely applied. In order to meet the requirements of the large-capacity energy storage device, the water cooling unit in the energy storage device is required to be used for management. Therefore, how to effectively manage the water cooling unit in the energy storage device is a problem to be solved. Disclosure of Invention The embodiment of the application provides a control method, a device, an energy storage system, a chip, a medium and a program product of the energy storage system, which enable a water cooling unit to stably operate after being awakened, reduce the risk of shutdown of the water cooling unit and further improve the reliability and stability of the whole energy storage system. The application provides a control method of an energy storage system, which comprises the steps of determining that a water cooling unit is in a dormant state, periodically detecting the water cooling unit during the dormant period of the water cooling unit, wherein the water cooling unit is in at least two modes of a refrigerating mode, a heating mode and a self-circulation mode in the process of periodically detecting the water cooling unit, and sending fault information of the water cooling unit under the condition that the water cooling unit is in fault. According to the technical scheme provided by the embodiment of the application, the water cooling controller in the water cooling unit controls the water cooling unit to perform self-inspection during the dormancy period of the water cooling unit, and under the condition that the water cooling unit is detected to be out of order, fault information is reported to transmit the fault information to the client or the after-sale end, so that the client can conveniently and early-warning measures are formulated in advance, after-sale quick response is used for maintenance, and the customer satisfaction is improved. In addition, the self-checking can enable the water cooling unit to quickly recover normal operation when the water cooling unit needs to work, and the overall reliability and stability of the energy storage system are improved. Furthermore, the self-check under the dormancy state can detect whether the water-cooled unit has abnormality or damage, in time maintains or changes for the water-cooled unit can steady operation after awakening, reduces the risk that the water-cooled unit shut down, and then improves holistic reliability and stability of whole energy storage system. In addition, through periodically detecting the water cooling unit during the dormancy period of the water cooling unit, the fault of the water cooling unit can be detected more accurately, so that the water cooling unit can stably operate after being awakened, the risk of shutdown of the water cooling unit is reduced, and the overall reliability and stability of the whole energy storage system are improved. In addition, in the detection process, the water cooling unit is sequentially subjected to detection of at least two modes of a refrigeration mode, a heating mode and a self-circulation mode, so that whether the water cooling unit fails or not is detected more accurately, and the self-detection health of the water cooling unit is improved. In some embodiments, the control method further comprises the steps of receiving data information sent by a plurality of sensors in the water cooling unit and confirming fault information according to the data information. According to the technical scheme, in the water cooling unit detection process, the fault information of each part in the water cooling unit is accurately determined by receiving the data information sent by the plurality of sensors in the water cooling unit, so that the self-checking health of the water cooling unit is improved, the water cooling unit can stably operate after being awakened, the risk of shutdown of the water cooling unit is reduced, and the overall reliability and stability of the whole energy storage system are further improved. In some embodiments, the water cooling unit comprises a compressor, a heat exchanger and a first pressure sensor arranged between the compressor and the heat exchanger, the control method further comprises the steps of receiving data information sent by the first pressure sensor, wherein the data information comprises first pressure data, and determining first fault information comprising fault information according to the first pressure data, wherein the first fault information indicates that the heat exchanger break