Fault Analysis of Electrochemical Energy Storage System Debugging

The typical faults during the subsystem debugging stage and joint debugging stage of the electrochemical energy storage system were studied separately. During the subsystem debugging, common faults such as point-to-point fault, communication fault, and grounding fault were analyzed, the troubleshooting methods were proposed. During the joint debugging, common faults such as batteries and PCS were analyzed, the optimized operation methods for energy storage systems were proposed to prevent them from occurring. A debugging fault diagnosis method based on the electrochemical energy storage system debugging fault database has been established, which helps to improve the debugging efficiency of the electrochemical energy storage system.