IEEE Recommended Practice for Use and Functions of Virtual Synchronous Machines

The fundamental principles, essential functions, and optional functions of a virtual synchronous machine (VSM) to make power electronic converters standardized for different applications and suitable for single-unit operation, multi-unit operation, islanded/off-grid operation, and grid-tied operation, facilitating the large-scale utilization of DER and the integration of power electronic converters into the grid, and advancing energy freedom and energy access are defined in this standard.