A Novel Approach to PMSG-Based Wind Energy Conversion with Power Factor Correction and Efficient DC-DC Conversion

Abstract

A novel wind energy conversion system (WECS) utilizing a Permanent Magnet Synchronous Generator (PMSG) followed by an active front end rectifier (AFE) which is followed by a Partial Resonant Inverter (PRI) based AC link DC-DC converter delivering power to DC link of the DSTATCOM is proposed in this work. The control scheme takes care of maximum power point tracking by adjusting speed of PMSG depending upon the prevailing wind velocity. The three phase PMSG side current is forced to be sinusoidal and at unity power factor with respected to the instantaneous PMSG terminal voltage by using the AFE rectifier. This proposed system is discovered to be superior to typical DBR based rectifier in terms of the reduced THD of the source current leading to more power conversion efficiency. PRI exhibit zero voltage switching which offers high voltage gain. This outlined concept is modelled in MATLAB/SIMULINK which has been simulated. The suggested concept is validated by the simulation results.