Nonlinear control for a grid connected wind turbine based on double fed induction generator

Abstract

The aim of this work is to make a nonlinear control for a grid connected wind turbine based on double fed induction generator. The stator of the DFIG is directly connected to the grid while its rotor is connected to it via a cascade (Rectifier, Inverter and Filter). Thus, the current control and the continuous bus of the wind turbine is carried out by the adjustment of the DFIG rotor sizes based on the maximum power point tracking (MPPT) technique. The results of simulation obtained under the MATLAB/SIMULINK environment present the performance of the sliding mode controller due to its robustness face to the wind speed variation of thus its simplicity of implementation and the robustness even in the presence of internal and external disturbances. By conclusion, it enabled us to justify the reliability of the suggested model and the elaborated command.