전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2016년도 전력전자학술대회 논문집
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- Pages.521-522
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- 2016
역기전력을 이용한 단상 하이브리드 SRM의 위치 추정 방법
Sensorless driving strategy of Single-Phase Hybrid SRM basing on Back-EMF detection
- Tang, Ying (Kyungsung University) ;
- Lee, Donghee (Kyungsung University) ;
- Ahn, Jin-Woo (Kyungsung University)
- 발행 : 2016.07.05
초록
This paper presents a novel scheme to estimate the rotor position of a single-phase hybrid switched reluctance motor (HSRM). The proposed method uses the differential of back-EMF within a position region to estimate rotor position. By detecting the crossing-zero signal of back-EMF differential value, the minimum position of back-EMF corresponding to an absolute rotor position can be captured and used for position estimation four times in every mechanical rotation. In this way, a sensorless operation with adjustable turn on/off angle can be achieved without substantial computation. For the starting, two current comparators are adopted. The experimental verification using a prototype drive system is provided to demonstrate the viability of the proposed sensorless scheme.
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