Energy storage PCS imposes higher reliability requirements on protective devices
Energy storage PCS have the characteristics of bidirectional power flow, frequent charging and discharging, long operating time, and high fault energy. Its protection design not only needs to consider external lightning surges, but also issues such as grid anomalies, battery side fluctuations, pre charge shocks, switch transients, and sustained temperature rise.For energy storage systems, it is recommended to configure surge protection, overheating disengagement, surge current limitation, interface transient protection, and temperature monitoring devices according to different nodes, forming a graded and monitored system protection architecture.