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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Motor Control Method for Four-Switch Inverters with DC-link Voltage Ripple Compensation Algorithm

Four-Switch 인버터의 전압 변동 보상 기법을 통한 전동기 운전 기법

  • Lee, Dong-Myung (Hongik Univ., School of Electronic and Electrical Engineering)
  • 이동명 (홍익대학교 전자전기공학부)
  • Received : 2013.03.25
  • Accepted : 2013.05.13
  • Published : 2013.07.31
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Abstract

This paper proposes a new voltage reference generation method for Four-Switch Inverters(FSI) with compensation of the neutral DC-link voltage variation. Since FSIs have the split DC-link causing the inherent problem of voltage fluctuations in the upper and lower capacitors, it is required to take account the voltage difference between the top and bottom capacitors. In this paper, to reduce the effect by the voltage variation, reference voltages are modified by adding compensation voltages proportional to the voltage difference between upper and lower capacitors. Simulation results showing control performance of induction and permanent magnet motors demonstrate the validity of the proposed method.

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References

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