An Adaptive Parameter-Based Control Technique of Virtual Synchronous Generator for Smooth Transient Between Islanded and Grid-Connected Mode of Operation

This paper deals with the development of a control technique for voltage source converters (VSCs) as an interface between renewable energy sources (RESs) and power grids. The lack inertia in converter-based generators their unconventional dynamic behavior increase negative impacts on grid, unlike operation conventional synchronous (SGs). In this sense, proposed emulates SGs loop interfaced converter acting grid-forming generator. Thus, supportive functionalities enhancing electric grid stability (e.g., frequency oscillation damping) will be provided by virtual generator (VSG). main targets include emulation, damping, primary secondary regulation, regulation. contribution work over existing methods is that optimal values swing equation parameters are employed to ensure well-designed damping feature VSG-based which adapts grid-connected islanded operating modes, enabling smooth resynchronizing its plug-and-play capability requirement. structure evaluated through simulation MATLAB/Simulink.