ENHANCEMENT OF POWER QUALITY BY THE COMBINATION OF D-STATCOM AND UPQC IN GRID CONNECTED TO HYBRID SYSTEM

Demand for electricity increasing, to meet energy requirement nonconventional energy sources are utilized. In this paper combination of WES and PVS generates power and voltage at PCC with grid instantaneously. Due to integration of hybrid system into the grid poses power quality issues. Basically hybrid system is the combination of two power generating system that will provide power continuously. PVS converts solar radiation into electric energy and WES converts wind energy into electric energy. The goal of this study is concerned on power quality problems i.e voltage/current fluctuation, flickers, distortion, damping, harmonics and other parameters are voltage/current sag/swell are analyzed. To mitigate the power quality issues combination of FACTS Devices such as D-STATCOM and UPQC are used and simulated in SIMULINK/MATLAB Software.