Design and analysis of a virtual synchronous generator control strategy in microgrid application for stand-alone sites

This paper deals with the design and analysis of a virtual synchronous generator (VSG) control strategy applied to a renewable-based system devoted to energy production in a stand-alone microgrid context. The studied hybrid energy production system consists of renewable-based energy production systems, a diesel power plant (DPP), and an energy storage system (ESS). The first part of the study will deal with the design of a single renewable energy source controlled using the VSG control strategy. In the second part, multiple renewable energy sources, similar to the one presented in the first part, will be connected in parallel to form a renewable farm. Finally, in a third part, the studied renewable farm will be integrated in a full hybrid system. In each part of the proposed study, the system power output will be evaluated and the voltage and frequency variations will be carefully analysed.