Control of the Doubly Fed Induction Generator in WECS

The major part of the existing research works concerning variable speed wind turbines control is not only to capture the maximum power from the wind but, also, to improve the quality of power and to converge the system for operating at unity power factor. This paper proposes a new power control of a variable speed wind energy conversion system based on a doubly Fed Induction Generator (DFIG) using space vector modulation to achieve control of active and reactive powers exchanged between the stator of the DFIG and the grid to ensure a Maximum Power Point Tracking (MPPT) of a wind energy conversion system and to reduce significantly Powers and Torque ripples. The SVM control is applied to rotor side converter for active and reactive power control and voltage regulation of wind turbine. This new approach is validated by modeling using Matlab-Simulink software and simulation results can prove the excellent performance of this control as improving power quality and stability of wind turbine.