Performance enhancement of wind energy conversion system based on DFIG in all operating regimes.

This paper presents a Vector Control (VC) strategy for a Doubly Fed Induction Generator based Wind Energy Conversion System (DFIG-WECS). In this constitution, the Rotor Side Converter (RSC) is responsible for implementing Maximum Power Point (MPP) whereas the Grid Side Converter (GSC) is responsible for regulating reactive and real power flow to the electrical and it is used to regulate the dc bus voltage and the ac side power-factor. The proposed strategy does not require any wind speed measurement. To verify the performance of the presented control approach, simulations are performed with MATLAB/Simulink. A complete simulation model is developed under varying wind speeds and system responses of open loop control are compared with those of closed loop control for different grid voltage conditions. [ABSTRACT FROM AUTHOR]