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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Torque Ripple Reduction of Interior Permanent-Magnet Synchronous Motors Driven by Torque Predictive Control

토크예측제어를 이용한 매입형 영구자석 동기전동기의 토크리플저감기법

  • Kim, Hyunseob (Dept. of Railway Electrical and Signaling Engineering, Seoul National University of Science and Technology) ;
  • Han, Jungho (Dept. of Railway Electrical and Signaling Engineering, Seoul National University of Science and Technology) ;
  • Song, Joong-Ho (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology)
  • 김현섭 (서울과학기술대학교 철도전문대학원) ;
  • 한정호 (서울과학기술대학교 철도전문대학원) ;
  • 송중호 (서울과학기술대학교 전기정보공학과)
  • Received : 2013.01.07
  • Accepted : 2013.01.28
  • Published : 2013.02.28
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Abstract

In this paper, a new torque predictive control method of interior permanent magnet synchronous motor is developed based on an extended rotor flux. Also, a duty ratio prediction method is proposed and allows the duty ratio of the active stator voltage vector to be continuously calculated. The proposed method makes it possible to relatively reduce the torque ripple under the steady state as well as to remain the good dynamic response in the transient state. With the duty ratio prediction method, the magnitude and time interval of the active stator voltage vector applied can be continuously controlled against the varying operation conditions. This paper shows a comparative study among the switching table direct torque control(DTC), the SVM-DTC, conventional torque predictive control, and the proposed torque predictive control. Simulation results show validity and effectiveness of this work.

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References

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