Hybrid PV- Battery- DG Based Virtual Synchronous Generator

Abstract

In this paper, frequency control of the islanded mode photovoltaic (PV) / Battery storage (BS) / Diesel generator (DG) power system is achieved when system subjected to excess load and suffering fault. The frequency control combination in this hybrid system can achieve by using a virtual synchronous generator (VSG), the role of VSG is used as the interface between the AC bus and DC bus. Solar PV-Battery working with an inverter it mimics the property of conventional generator, it called VSG. If PV-Battery is not able to supply the required power to the load such condition the diesel generator help to fulfill this demand, and such a combination called PV/Battery/DG-VSG. In practically here we control the output power of the load which helps to control the stability of microgrid. Simulations based on MATLAB Simulink VSG control model developed for the proposed to improve the dynamic frequency characteristic of the microgrid