System and method for diagnosing and monitoring battery energy storage systems

Abstract

A system includes an energy storage system comprising a plurality of energy storage nodes and an intelligent diagnostic and monitoring module (“IDM”) coupled to the energy storage system. The IDM module includes a processor that monitors the control signals of the energy storage system and enters a multi-stage diagnostic process that includes detecting surface errors, faults, or anomalies based on the monitored control signals; initiating a root cause analysis (RCA) algorithm when surface errors, faults, or anomalies are detected; initiating a deep diagnostic algorithm when no surface errors, faults, or anomalies are detected; after initiating the deep diagnostic algorithm, detecting errors, faults, or anomalies based on the monitored control signals; and troubleshooting the energy storage system when errors, faults, or anomalies are detected.