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MPTC of Induction Motor Driven with Low Switching Frequency

낮은 스위칭 주파수로 구동되는 유도전동기의 모델예측토크제어

  • Received : 2014.11.13
  • Accepted : 2015.03.05
  • Published : 2015.03.31

Abstract

When medium and large induction motors are driven by 2-level inverters with low switching frequency, induction motors provoke deteriorated performances resulted from large torque ripples, flux ripples, and large current distortion. Model predictive torque control(MPTC) for a fast torque control of induction motors is also suffered from large torque ripples when the induction motors are fed by 2-level inverters that are based on 6 active voltage vectors with low switching frequency restricted. To solve this problem, this paper proposes a new MPTC method based on both a 12 active voltage vector and an optimized duty ratio calculation. The proposed control strategy illustrates its effectiveness under the various operating conditions through simulation works.

Keywords

Induction Motor;Model Predictive Torque Control(MPTC);Middle Voltage Vector

References

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Acknowledgement

Supported by : 서울과학기술대학교