An integral sliding mode controller with super-twisting algorithm for direct power control of wind generator based on a doubly fed induction generator

In order to reduce the chattering phenomena in the conventional sliding mode control, which appears mostly in the rotor currents, the integral sliding mode controller using the super-twisting algorithm is proposed. In this controller, the sliding surfaces are chosen so that they will be compatible with the errors in the stator active and reactive powers. The simulation results obtained when using a three blades wind turbine based a doubly fed induction generator; show the robustness of the proposed control model. The minimization of the chattering such as in the direct and the quadrature component of the rotor currents, which represents in the reducing of total harmonics distortion of the rotor currents and equal, to 3.82 and 3.54, resulting from the application of the integral sliding mode controller with sign function and with super-twisting algorithm respectively.