Performance study of common DC link connected wind and PV hybrid system

Abstract

The renewable energy based DG system is acquiring more attention towards the power industries due to their abundant availability which is cost free and eco-friendly, they are intermittent in nature too, hence the power prediction from one source is dependent. Thus, a hybrid DG system involving wind and solar energies can increase the power prediction over an individual. This paper presents, the DC link connected hybrid wind and solar based DG system along with power electronics interfacing. The system consists of PMSG as a wind generator, solar array, dc-dc converter and grid interface inverter. Power control strategy is used to extract the maximum power. Maximum power point tracking (MPPT) control is essential to ensure the output of photovoltaic power generation system at the maximum power output as possible. The DC link connected model of wind and PV system is presented in Matlab/Simulink environment. The simulation results show the controller performance and dynamic behavior of the hybrid wind-PV system for different loads.