Power Quality Improvement in Wind, Solar, and DG Based Islanded Microgrid by using DVR

Abstract

In this paper, the effect of DVR has been analyzed on an Islanded microgrid with high renewable penetration. A wind, solar and diesel generator based Micro-grid has been developed with the help of MATLAB Simulink software. The developed microgrid model is simulated in Islanded mode with grid disconnected. The simulation results of different cases are obtained, and power quality is analyzed considering the effect of Dynamic Voltage Restorer (DVR). Also, author demonstrates mitigation of voltage sag generated due to fault, harmonics generated due to non-linear load and improving total harmonics distortion (THD), and power quality in non-linear loading and faulty conditions by using a Dynamic voltage restorer.