Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2001.07b
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- Pages.974-976
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- 2001
Torque Ripple Reduction of BLDG Motors Using Single DC-Link Currant Sensor
DC Link단 단일 전류센서에 의한 브러시리스 직류 전동기의 토크 리플 저감
- Baek, Dae-Jin (KIST) ;
- Won, Chang-Hee (KIST) ;
- Lee, Kyo-Beum (KIST) ;
- Choy, Ick (KIST) ;
- Song, Joong-Ho (KIST) ;
- Yoo, Ji-Yoon (Korea Univ.)
- 백대진 (한국과학기술연구원) ;
- 원창희 (한국과학기술연구원) ;
- 이교범 (한국과학기술연구원) ;
- 최익 (한국과학기술연구원) ;
- 송중호 (한국과학기술연구원) ;
- 유지윤 (고려대학교)
- Published : 2001.07.18
Abstract
This paper presents a method to reduce commutation torque ripples occurred during commutation in brushless do motor drives using a single DC-link current sensor. In brushless dc motor drives with a single dc current sensor instead of 3-phase line current sensors, it is noted that dc-link current sensor cannot give any information corresponding to the motor currents during line current commutation intervals. A new technique to resolve such a problem is dealt with based on a deadbeat current control in which motor armature voltage command is computed from a dc-link current reference, an actual current and counter emf voltage. The simulation results show that the proposed method reduces the torque ripple significantly.
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