Browse > Article
http://dx.doi.org/10.6113/TKPE.2022.27.1.80

Rotor Initial Polarity Detection Method of Single-Phase PMSM Considering Asymmetric Air-Gap Structure  

Seo, Sung-Woo (Dept. of Electrical Engineering, Kyungnam University)
Hwang, Seon-Hwan (Dept. of Electrical Engineering, Kyungnam University)
Park, Jong-Won (R&D Center, GMB Corp.)
Kim, Yong-Hyu (Smart Mobility Technology Center, Busan Techno Park)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.27, no.1, 2022 , pp. 80-83 More about this Journal
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.
Keywords
SP-PMSM; Asymmetric air-gap; Initial rotor polarity detection; Open-loop starting; High frequency voltage signal; Sensorless operation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H. D. Kang, S. H. Hwang, and J. S. Lee, "Initial rotor position estimation of single-phase permanent magnet synchronous motors with asymmetric air-gap," in IEEE Transportation Electrification Conf., pp. 1-5, Jun. 2018.
2 H. Ohta, T. Sato, I. Masugane, and K. Matsuse, "Rotor pole discrimination and simple starting method of new single-phase PM motor without position sensor," in Proceedings IPEMC 2000 Third International Power Electronics and Motion Control Conference, Aug. 2002.
3 B. J. Kim, H. S. Hwang, and C. W. Lee, "Design of a high-speed single-phase BLDC motor in terms of asymmetric air gap," Journal of the Korean Magnetics Society, Vol. 28, No. 2, pp. 58-65, Apr. 2018.   DOI
4 D. Kim, K. Lee, B. Kim, and B. Kwon, "A novel starting methods of the SPM-type BLDC motors without position sensor for reciprocating compressor," in IEEE Industry Application Conf., Vol. 2, pp. 861-865, Oct. 2006.
5 C. Chiu, Y. Chen, Y. Liang, and R. Liang, "Optimal driving efficiency design for the single phase brushless DC fan motor," IEEE Trans. on Magnetics, Vol. 46, No. 4, pp. 1123-1130, Apr. 2010.   DOI
6 W. C. Chen and Y. Y Tzou, "Current-mode sensorless control of single-phase brushless DC fan motors," in IEEE Ninth International Conference on Power Electronics and Drive Systems, pp. 659-663, Dec. 2011.