Fuzzy direct torque controlled Permanent Magnet Synchronous, Doubly Fed and Induction Motors

Fuzzy logic shown great promise for motion control system as an attractive alternative method due to its immunity to parameter variations and bring improvements in the performance of system. This paper present a comparative study of direct torque control (DTC) based on fuzzy logic (FL) in order to reduce the torque and flux ripples producing by the hysteresis comparators in classical DTC, this technique is applied to Permanent Magnet Synchronous Motor PMSM, Doubly Fed Induction (DFIM) and Induction Motor (IM) in closed loop.