Introduction - If you have any usage issues, please Google them yourself
This paper describes a torque ripple reduction technique with constant switching frequency for direct
torque control (DTC) of an induction motor (IM). This method enables a minimum torque ripple control. In order to obtain a constant switching frequency and hence a torque ripple reduction, we propose a control technique for IM. It consists of controlling directly the electromagnetic torque by using a modulated hysteresis controller.