The industrial and commercial energy storage solution adopts a two-level or three-level architecture, supports multi-cluster paralleling or single-cluster independent use, supports data collection, algorithm analysis, logic processing, data storage and other applications, and simultaneously monitors the system's total voltage, total current, and insulation resistance online, Relay adhesion, real-time detection and fault diagnosis of battery safety status, combined with accurate SOC, SOH, SOE estimation to ensure safe and reliable operation of the power station system.