Patent ID: 11881572
Assignee: SHENZHEN HITHIUM ENERGY STORAGE TECHNOLOGY CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 11:
12. A computer device, comprising a processor and a memory coupled with the processor and configured to store computer programs, which are configured to be performed by the processor and comprise instructions configured to perform:
obtaining a first thermal-runaway parameter detected by a first detection apparatus of each of a plurality of energy storage units of an energy storage system and a second thermal-runaway parameter detected by a second detection apparatus of each of the plurality of energy storage units, the energy storage system comprising the computer device, a temperature control apparatus, and the plurality of energy storage units, each of the plurality of energy storage units comprising a battery module, the first detection apparatus, and the second detection apparatus, the first detection apparatus being configured to detect the first thermal-runaway parameter inside the battery module, the second detection apparatus being configured to detect the second thermal-runaway parameter outside the battery module, the first detection apparatus and the second detection apparatus of each of the plurality of energy storage units being in communication connection with the computer device;
calculating a difference between the first thermal-runaway parameter and the second thermal-runaway parameter;
comparing the difference with a difference threshold;
determining that at least one of the first detection apparatus or the second detection apparatus fails, when the difference is greater than the difference threshold;
determining that the battery module fails, when the first thermal-runaway parameter is greater than a first threshold, the second thermal-runaway parameter is greater than a second threshold, and the difference is less than or equal to the difference threshold;
obtaining location information of the first detection apparatus and location information of the second detection apparatus when the at least one of the first detection apparatus or the second detection apparatus fails, and sending a detection-apparatus fault signal to the temperature control apparatus, wherein the detection-apparatus fault signal comprises the location information of the first detection apparatus and the location information of the second detection apparatus; and
obtaining location information of the failed battery module when the battery module fails, and sending a battery-module fault signal to the temperature control apparatus, wherein the battery-module fault signal comprises the location information of the failed battery module, wherein
each of the plurality of energy storage units further comprises a third detection apparatus and a fourth detection apparatus, the third detection apparatus is a backup detection apparatus of the first detection apparatus and configured to detect a third thermal-runaway parameter inside the battery module, the fourth detection apparatus is a backup detection apparatus of the second detection apparatus and configured to detect a fourth thermal-runaway parameter outside the battery module, and after sending the detection-apparatus fault signal to the temperature control apparatus, the computer programs further comprise instructions configured to perform:
receiving a detection request sent, within a first preset time, by the temperature control apparatus;
obtaining the third thermal-runaway parameter inside the battery module and the fourth thermal-runaway parameter outside the battery module in response to the detection request;
determining that the first detection apparatus fails, when an error between the first thermal-runaway parameter and the third thermal-runaway parameter is greater than a first preset difference, and an error between the second thermal-runaway parameter and the fourth thermal-runaway parameter is less than or equal to a second preset difference; and
determining that the second detection apparatus fails, when the error between the first thermal-runaway parameter and the third thermal-runaway parameter is less than or equal to the first preset difference, and the error between the second thermal-runaway parameter and the fourth thermal-runaway parameter is greater than the second preset difference.