Virtual Synchronous Generator, a Comprehensive Overview

Renewable energy sources (RESs) are generally connected to the grid through power electronic interfaces, which generate electrical instantaneously with little inertia. With increasing penetration of RESs, will gradually develop into a low inertia and underdamped system, results in serious frequency stabilization problems. The virtual synchronous generator (VSG) is an emerging technology that mimics operation characteristics traditional generators (SGs). Virtual damping therefore introduced, help stabilize frequency. This paper gives comprehensive overview VSG. basic principle VSG introduced analyzed depth. key issues related summarized discussed, including hardware configuration, software control strategies, supporting methods, typical applications.