대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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- Pages.1294-1296
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- 2005
간단한 전압 검출 회로를 이용한 BLDC 전동기의 센서리스제어
Sensorless Drive for Brushless DC Motor Using Simple Voltage Detecting Circuit
- Go, Sung-Chul (HANYANG UNIVERSITY) ;
- Ahn, Joon-Seon (HANYANG UNIVERSITY) ;
- Lee, Ju (HANYANG UNIVERSITY)
- 발행 : 2005.07.18
초록
Because of its cost effectiveness, the Brushless DC Motor(BLDCM) is focused by the industry these days. Considering the constant back-EMF region of the BLDCM, only a simple position information should be provided for constant torque control. From this point of view, using expensive position sensors, such as encoder, resolver, etc, decreases the cost effectiveness of the BLDCM. The Proposed detecting circuit detects position of zero crossing point(ZCP) then relative position could be calculated from ZCP. This circuit is robust to noise because of working in the current level. BLDCM is driven from the position information by the ZCP The reliability on BLDCM sensorless control using the voltage detecting circuit is shown through simulation using Matlab.
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