The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Rotor Initial Polarity Detection Method of Single-Phase PMSM Considering Asymmetric Air-Gap Structure

단상 영구자석 동기 전동기의 비대칭 공극 구조를 고려한 회전자 초기 자극 검출 기법

  • Received : 2021.09.15
  • Accepted : 2021.10.20
  • Published : 2022.02.20
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Abstract

This paper proposes an initial rotor polarity detection algorithm of a single-phase permanent magnet synchronous motor (SP-PMSM) related to stable open-loop starting for sensorless operation. Generally, the SP-PMSM needs an asymmetric air-gap structure to can avoid the initial starting failure at zero torque point. Therefore, the rotor polarity information can be obtained by using the DC offset current direction of a stator current through a high frequency voltage injection into an SP-PMSM with an asymmetric air gap. In this paper, the proposed rotor initial polarity detection algorithm is verified through several experimental results.

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Acknowledgement

이 논문은 산업통상자원부의 디자인혁신역량강화사업 "반려동물 패밀리 중심 다중 센서 기반 인공지능 탑승자 인식 및 공기청정 콘솔 인테리어 디자인"으로 수행된 것임. (과제번호 20006697)

References

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