prDS IEC TS 63406:2025 ED1:2026

Generic RMS simulation models of inverter-based generators for power system dynamic analysis

Scope

IEC TS 63406:2025 addresses the generic root-mean-square (RMS) simulation models of inverter-based generators for power system dynamic analysis. The scope of the document covers the grid-connected IBGs for photovoltaic power generation systems, wind turbine generation systems with full-scale converters (i.e. Type-4 wind turbine systems), wave energy generation systems, fuel cell energy generation systems, battery energy storage systems, supercapacitor energy storage systems, flywheel energy storage systems, AC- or DC-coupled hybrid energy generation or storage systems, etc.
This document is to specify generic dynamic models for various types of IBGs, which can be applied in power system stability studies.
This document addresses the generic root-mean-square (RMS) simulation models of inverter-based generators (IBGs) for power system dynamic analysis. The scope of the document covers the grid-connected IBGs for photovoltaic power generation systems, wind turbine generation systems with full-scale converters, wave energy generation systems, fuel cell energy generation systems, battery energy storage systems, supercapacitor energy storage systems, flywheel energy storage systems, AC- or DC-coupled hybrid energy generation or storage systems, etc. The models specified in this document can be primarily used for power system RMS dynamic simulation analysis in the electromechanical time scale.