Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1997.11a
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- Pages.10-12
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- 1997
The analysis of the thrust characteristics by a measurement of the back-EMF in a brushless DC linear motor
브러시리스 DC 선형 모터에서 역기전력 측정을 통한 추력 특성 분석
- Lee, Chun-Ho (Hanyang Univ.) ;
- Choi, Moon-Suk (Korea Institute of Science and Technology) ;
- Lee, Sang-Lak (Korea Institute of Science and Technology) ;
- Kim, Yong-Yil (Korea Institute of Science and Technology) ;
- Hyun, Dong-Seok (Hanyang Univ.)
- 이춘호 (한양대학교 전기공학과) ;
- 최문석 (한국과학기술연구원 정보전자연구부) ;
- 이상락 (한국과학기술연구원 정보전자연구부) ;
- 김용일 (한국과학기술연구원 정보전자연구부) ;
- 현동석 (한양대학교 전기공학과)
- Published : 1997.11.29
Abstract
For a given brushless DC linear motor, we analyze the thrust characteristics. We measure the back-EMF and then calculate the thrust with it. To compare the thrust, we measure it direct with force-torque meter and we calculate it from Lorentz equation. As the thrust and the back-EMF vary linearly according to the current and the velocity respectively, we define the thrust constant and the back-EMF constant. To match the motor to its controller, we calculate the thrust constant and the back-EMF constant. The result calculated with the back-EMF differs from that of the measurement by only 4.4%.
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