Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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MPTC of Induction Motor Driven with Low Switching Frequency

낮은 스위칭 주파수로 구동되는 유도전동기의 모델예측토크제어

  • Choi, Yuhyon (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology) ;
  • Han, Jungho ;
  • Song, Joongho (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology)
  • Received : 2014.11.13
  • Accepted : 2015.03.05
  • Published : 2015.03.31
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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.

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References

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