The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Torque Ripple Reduction based on Flux Linkage Harmonics Observer for an Interior PM Synchronous Motor including Back EMF Harmonics

왜곡된 역기전력을 갖는 매입형 영구자석 동기전동기의 쇄교자속 고조파 관측기를 이용한 토크리플 저감

  • Jin, Yong-Sin (Technology Research Lab., VCTech.) ;
  • Kim, Hag-Wone (Dept. of Control & Instrumentation Eng., Korea University of Transportation) ;
  • Cho, Kwan-Yuhl (Dept. of Control & Instrumentation Eng., Korea University of Transportation) ;
  • Lim, Byung-Kuk (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
  • Received : 2013.02.08
  • Accepted : 2013.04.03
  • Published : 2013.08.20
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Abstract

The mechanical vibration of a PM synchronous motor at low speeds due to the back emf harmonics may be serious problems in some application such as MDPS(Motor driven power steering), electric vehicles. In this paper, torque ripple reduction for an interior PM synchronous motor including back emf harmonics is proposed. The dq flux linkage harmonics of the permanent magnet are estimated on real time by using the dq currents of the real system and the model of the MRAS observer. Based on the estimated flux linkage harmonics, the dq harmonic currents for reducing the torque ripples are compensated on the dq reference currents. The estimation of the flux linkage harmonics by the MRAS observer and the torque ripple reduction of the proposed algorithm was verified by the simulation and experiment.

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References

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Cited by

  1. Torque Ripple Reduction Algorithm of PM Synchronous Motor at High Speed Operation vol.20, pp.5, 2015, https://doi.org/10.6113/TKPE.2015.20.5.429