Dynamic Modeling and Vector control of DFIG-based Wind Turbine

Abstract

This work deals with the development of vector control of Doubly Fed Induction Generator (DFIG) based Wind Turbine system. The dynamic modeling of studied system is described, firstly, according to stationary reference frame αβ and then according to synchronous reference frame dq. Moreover, the wind turbine modeling is evoked by resorting of Maximum Power Point Tracking (MPPT) approach based on indirect speed control. However, the control strategy focuses mainly on the implementation of Rotor-Side Converter (RSC) control employing rotor current control loops and speed and power control loops in order to regulate the electromagnetic torque and the reactive power exchanged between the stator and the grid. The studied system is tested and simulated for both super-synchronous and sub-synchronous wind speed using Sim Power System Simulink of MATLAB to prove the effectiveness of proposed vector control strategy.