PMSG Based Wind Energy Conversion System for Maximum Power Extraction

Abstract

In this paper a permanent magnet synchronous generator based wind energy conversion system (WECS) with 2 level back to back converter under normal and fault condition on grid side is studied by using two effective controllers i.e tip speed ratio (TSR) and Fuzzy logic control (FLC) for maximum power extraction. The control schemes are used to track maximum generator power and to protect the wind turbine from damages with the help of machine side converter control. On the grid side the inverter is used to control active and reactive power independently with the control of d-axis and q-axis currents by using vector control theory (VC) with direct power control technique (DPC). Simulation results show the improved performance with FLC strategy compared to TSR contr oller under normal and fault conditions.