Etude d’un système eolien à vitesse variable

Abstract

This work presents the modeling and the control of the doubly-fed induction machine (DFIM) in the wind power production. With this intention, a model of the different components of the wind generator (Turbine, DFIM and cascaded converter- inverter) was established. The maximum power point tracking control was done by a vector control of the generator with active and reactive stator powers as control variables. This control is elaborated by three methods. The performances of the system are analyzed and compared in terms of references tracking and rapidity. The converter is used for drive the DFIM. For this reason we used the PWM technique to control this device and in order to limit the damage of the network we used PWM hysteresis technique. This study was concluded by a simulation of the wind generator. We observed at a result, that the DFIM is able to be used in the wind generation application.