Optimal Control of DVR to enhance the power quality of PV/Wind/Fuel cell hybrid system feeding a new community

Abstract

This article presents a control of Dynamic Voltage Restorer (DVR) to enhance the power quality (PQ) of a stand-a loan PV/wind/fuel cell hybrid system feeding a new community. The optimal size of the proposed system is obtained using the Homer simulation tool. The controller proposed in this article is a PI controller based Cuckoo Search optimization technique. Cuckoo Search applied to PI controller to solve the problem of optimization parameters. Two test cases are investigated includes (three-phase fault and sag voltage) to proof the quality of DVR based PI-CS controller. The disturbances applied to the proposed system are avoided using Dynamic voltage restorer (DVR) while the PV/Wind/Fuel cell hybrid system continues its normal operation and the Power quality is enhanced. The simulation model of the hybrid system with DVR using PI-CS is designed in MATLAB/Simulink. Results show the ability of DVR with Controller to overcome and compensate voltage sags as well as faults.