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[07-08, 2005] 

Journal of Electrical Engineering, Vol 56, 07-08 (2005) 183-188

DIRECT TORQUE CONTROL OF INDUCTION MOTOR WITH FUZZY MINIMIZATION TORQUE RIPPLE

Fatiha Zidani - Rachid Naït Saïd

   This paper presents an improved direct torque control based on fuzzy logic technique. The major problem that is usually associated with DTC drive is the high torque ripple. To overcome this problem a torque hysteresis band with variable amplitude is proposed based on fuzzy logic. The fuzzy proposed controller is shown to be able to reducing the torque and flux ripples and to improve performance DTC especially at low speed.

Keywords: direct torque control, induction motor, fuzzy logic, torque ripple minimization


[full-paper]


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