이산화 오차를 고려한 ZCP 추정방법과고속 BLDC 센서리스 구동에 관한 연구
- Title
- 이산화 오차를 고려한 ZCP 추정방법과고속 BLDC 센서리스 구동에 관한 연구
- Other Titles
- A Study of the ZCP Estimation Methods considering Discretization Error and High Speed BLDC Sensorless Drive
- Author
- 선우명호
- Keywords
- 브러시리스 직류 전동기; 센서리스 구동; 영전압 검출; 이산화 오차; Brushless DC motor(BLDC); Sensorless drive; Zero crossing point detection(ZCP); Discretization error
- Issue Date
- 2014-01
- Publisher
- 한국자동차공학회, 2014.
- Citation
- Transactions of the Korean Society of Automotive Engineers, 2014, 22(1), p.95-102
- Abstract
- This paper presents zero crossing point(ZCP) estimation methods considering discretization error for a high speed brushless DC(BLDC) motor drive. The ZCP is estimated by detecting the change of back-EMF polarity for the BLDC sensorless drive, and the discretization error exist on the estimated ZCP. The discretization error of the ZCP is a cause of the delay of a commutation timing of current and increment of a current ripple factor. Besides a delay of a ZCP estimation brings on the limitation of a speed range for the BLDC sensorless drive. The compensation method based on the error analysis with probability theory for reducing the effects of the discretization error of the ZCP is proposed. Also a ZCP estimation method according to the Back-EMF patterns is proposed to widen the speed range for the BLDC sensorless drive. The proposed methods are verified by the experiment.
- URI
- https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART001843675http://hdl.handle.net/20.500.11754/53804
- ISSN
- 1225-6382; 2234-0149
- DOI
- 10.7467/KSAE.2014.22.1.095
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > AUTOMOTIVE ENGINEERING(미래자동차공학과) > Articles
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