Fuzzy Control of a Wind System Based on the DFIG

Abstract

This paper proposes the modeling and control of Wind Energy Conversion Systems (WECS) based on Doubly Fed Induction Generator (DFIG). The fuzzy logic control is used to improve the extracted wind power at given wind velocity; the mechanical power available from a wind turbine is a function of its shafts speed. Then, the rotor side converter (RSC) is controlled in the aim to follow the optimal torque for given maximal wind power. The effectiveness of the proposed control strategy is validated by theoretical analysis and simulation carried out in Matlab/Simulink environment.