The Integrated Switching Control Strategy for Grid-Connected and Islanding Operation of Micro-Grid Inverters Based on a Virtual Synchronous Generator

The Integrated Switching Control Strategy for Grid-Connected and Islanding Operation of Micro-Grid Inverters Based on a Virtual Synchronous Generator

Blog Article

In allusion to the virtual synchronous generator (VSG)-based voltage source inverters in micro-grids, an integrated control method combining a quasi-synchronization algorithm and an islanding detection Bissel Formulae Cleaners algorithm is proposed to improve the power supply reliability and quality, which can simultaneously meet the operational requirements of both grid-connected mode (GCM) and off-grid mode (OGM), and the smooth switching between them.The quasi-synchronization algorithm of the micro-grid inverter is designed to realize a flexible grid connection.Moreover, for quickly detecting islanding phenomena, a novel islanding detection algorithm based on the VSG’s inherent characteristics is put forward.Finally, the Plug-in Stove Hotplate validity and availability of the proposed models and control strategies are comprehensively verified by simulation results based on Matlab/Simulink.