Suitable power control based on type-2 fuzzy logic for wind-turbine dfig under hypo-synchronous mode fed by multi-level converter

This paper presents an improved stator active and reactive power control is proposed in wind system (WS) to control doubly fed induction generator (DFIG) in Hyposynchronous mode using maximum power point tracking (MPPT) strategy. A new class of fuzzy logic called an adaptive type-2 fuzzy logic control (T2-FLC) is proposed for wind generation application to control Ird and Irq instead the proportional integral derivate (PID) classical controllers. In this context, the rotor side converter (RSC) is fed by three level neutral point clamped (NPC) converter. In order to extract the maximum of wind power; the condition of the stator side power factor is controlled at unity level via MPPT by keeping the stator reactive power equals to zero. Results obtained using MATLAB /Simulink environment show that T2-FLC controller is robust, superior dynamic performance and hence found to be a suitable replacement of the conventional controller for the high performance drive applications.