Improvement in Direct Torque Control of Induction Motor Using Fuzzy Logic Duty Ratio Controller

  title={Improvement in Direct Torque Control of Induction Motor Using Fuzzy Logic Duty Ratio Controller},
  author={Y. Srinivasa Kishore Babu and G. Tulasi Ram Das},
This paper shows the application of fuzzy logic based duty ratio control technique to reduce torque ripple in an induction motor employing Direct Torque Control (DTC). This technique increases the number of voltage vectors beyond the available eight discrete voltage vectors without any increase in the number of semiconductor switches in the inverter. Look-up Table based on-line tuning PI controller is proposed for outer speed control loop to achieve swift response, less overshoot and precision… CONTINUE READING
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