High-Voltage Cascade Energy Storage Converter Standard

This standard specifies the functional and performance requirements for high-voltage cascade energy storage converters used in grid-connected applications with electrochemical batteries. It covers start/stop control, power regulation (active and reactive), alarm and protection systems, insulation resistance detection, communication, and data monitoring. Performance indicators include electrical and safety metrics. Normal operating conditions require temperatures from -20°C to +40°C, humidity below 95%, and compliance with grid power quality standards. Appearance must be intact with proper labeling, and protection levels are IP20 for indoor and IP54 for outdoor units. The standard also addresses electromagnetic compatibility, auxiliary systems, inspection rules, and marking, packaging, transportation, and storage. It applies to AC port voltages of 6kV, 10kV, and 35kV, referencing numerous Chinese national standards for power quality, environmental conditions, and testing methods.