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Over the past years, many kinds of control techniques are proposed for DFIG drives. Among them, the DTC control scheme has gained more importance due to simple control schemes and fast dynamic response. However, it has the disadvantage of high ripples in stator current, rotor flux, torque, and slow response because of hysteresis controllers in torque and rotor flux loop. To improve the performance of direct torque control technique and to minimize the rotor flux and stator current ripples, DTC strategy based fuzzy super-twisting sliding mode controllers (FSTSMC) is proposed in this work. The simulation is carried out using Matlab software and compares the DTC strategy with proportional-integral (PI) controllers and the proposed control scheme is implemented and simulated results are shown.
Habib Benbouhenni (Tue,) studied this question.
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