Microgrid Impact on Frequency Stability

Abstract

Increases in the level of electricity generated by Renewable Energy Sources (RES) in Microgrids (MG), which have almost low moment inertia because of using power conversion devices, might be dangerous to the power system's ability to run under reliable and stable conditions. Numerous solutions to the stated above problem were presented in this study. The goal of this research is to evaluate the technical viability of supplying an inertial response to MG with high Photovoltaic (PV) and wind turbine power penetration by utilizing energy storage devices based on batteries and supercapacitors. Batteries and supercapacitors are recommended in this study to improve frequency stability and response. The study was carried out using the voltage source inverter design with a droop control technique to improve the frequency response. A detailed model of the provincial MG is built using MATLAB/Simulink to assess the effects of the high level of RES penetration on frequency stability in MG.