Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Analysis of the torque ripple of Traction Motor in the VSI system

전압원 인버터 파형에 따른 견인 전동기의 맥동 토오크 해석

  • Rhee, Kee-Hong (Department of Electrical Engineering, Dongguk University) ;
  • Yun, Shin-Yong (Department of Electrical Engineering, Dongguk University) ;
  • Kim, Yong (Department of Electrical Engineering, Dongguk University) ;
  • Baek, Su-Hyun (Department of Electrical Engineering, Dongguk University) ;
  • Kang, Ho-Sung (Department of Electrical Engineering, Dongguk University)
  • 리기홍 (동국대학교 전기공학과) ;
  • 윤신용 (동국대학교 전기공학과) ;
  • 김용 (동국대학교 전기공학과) ;
  • 백수현 (동국대학교 전기공학과) ;
  • 강호성 (동국대학교 전기공학과)
  • Published : 1996.07.22
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Abstract

Traction Motor is being transferred to the squirrel cage induction motor from D.C motor, by the improved power semiconductors like GTO, IGBT, etc. In the Induction Motor, inverter system must be used for delivering variable voltage variable frequency. But, by pulsating in the system the harmonics would be produced, and that cause the torque ripple and enfeeble the dynamic characteristics of the motor. So, to use the inverter system, we should take the torque ripple into consideration. To minimize the torque ripple in the VSI fed Traction Motor, the optimal pulsating was presented in this paper. By using the SPWM(Sinusoidal Pulse Width Modulation) method, feeding the appropriate pulse, we can minimize the torque ripple and improve the transient response.

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