Control optimization of a Doubly Fed Induction Machine

The presented study is focused on a doubly fed induction machine (DFIM) applied in motor working. Its stator and rotor windings are connected to voltage sources inverters (VSI). This speed drive can be used for high power applications. Power supply of this motor is divided into two parts by the means of a power dispatching ratio. Moreover, this system provides some interesting degrees of freedom. The goal of this paper is to define and to optimize the values of principal parameters in order to design an optimal control strategy. Simulation results show the system behavior versus this optimization study. Finally, fluxes, torque and rotation speed controls are designed and simulation results illustrate their behavior.