Prediction-based ripple reduction in Direct Torque Control of an induction machine

  title={Prediction-based ripple reduction in Direct Torque Control of an induction machine},
  author={Jef Beerten and Jan Verveckken and Johan Driesen},
  journal={2008 18th International Conference on Electrical Machines},
In this paper, a new prediction technique is presented in order to minimize both torque and flux ripple in direct torque control (DTC) of an induction machine. When the classical DTC scheme is implemented on a discrete-time base using a digital controller, the choice of the appropriate voltage vector is based on calculated values of torque and flux corresponding to the previous sampling moment. This time delay causes a large fraction of the overall ripple when the hysteresis bands are small… CONTINUE READING


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