Modeling and Control of a DFIG for wind Turbine Conversion System using Back-to-back PWM Converters

Abstract

In this work we study the modeling and control strategy of the variable speed wind turbine based on doubly feed induction generator (DFIG) connected to the grid, we have used the maximum power point tracking (MPPT) technique to generate the reference torque, which will be exploited in the control strategy for maximizing the power converted by the turbine. The proposed control strategy is focused on the vector oriented control (VOC) using a PI regulators for both the rotor side converter (RSC) and the grid side converter (GSC), which allows to control the active and reactive powers generated by the DFIG in an independent manner.The performance and effectiveness of proposed control strategy are verified by simulation under variable weather conditions using Matlab-Simulink environment for a 2.4 MW turbine. The results demonstrate that the proposed techniques provide good control performances.