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Initial Rotor Position Detection of a Toroidal SRM Using the Rate of Change of Current  

Yang Hyong-Yeol (전남대 공대 전기공학과)
Lim Young-Cheol (전남대 공대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers D / v.54, no.1, 2005 , pp. 26-32 More about this Journal
Abstract
Rotor position information is essential in the operation of the switched reluctance motor(SRM) drive for generation the phase current switching signals. When an incremental encoder is used as a rotor position sensor, the initial rotor position can not be detected. Some sensorless rotor position estimation methods also have the same problem. In these systems, to initially align the rotor, the forced alignment method has a delay and reverse rotation before the motor can start. Therefore it can not be acceptable for unidirectional drive systems. So the forced alignment method is not desirable in all drive systems and the research on the SRM drives should be directed to a system without rotor alignment. In this paper, a new detection method of initial rotor position using the rate of change of current is suggested. Firstly, di/dt versus θ/sub R/ reference table, which is the relation between the rate of change of current and rotor position, is generated and then the squared Euclidean distance method is used to estimate the rotor position based on the table. The simulated and experimental results are presented demonstrating the feasibility and accuracy of this method.
Keywords
Toroidal SRM; Initial Rotor Position; Rate of Change of Current;
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1 Wang Zhongfang, A. D. Cheok and Wee Lim Khiang 'Sensorless rotor position estimation algorithm for switched reluctance motors using fuzzy logic' PESC. 2001 IEEE 32nd Annual Power Electronics Specialists Conference, Vol. 3, pp. 1701-1706, June 2001   DOI
2 E. Mese and D. A. Torrey, 'An approach for sensorless position estimation for switched reluctance motors using artifical neural networks', IEEE Trans. on Power Electr., Vol. 17 Issue: 1, pp. 66-75, Jan. 2002   DOI   ScienceOn
3 I.-W. Yang and Y.-S. Kim, 'Rotor speed and position sensorless control of a switched reluctance motor using the binary observer', IEE Proc.-Electr. Power Appl., Vol.147, No. 3, pp. 220-226, 2000   DOI   ScienceOn
4 Gabriel Gallegos-Lopez, Philip C.Kjaer, J.E.Miller, 'A New Sensorless Method for Switched Reluctance Motor Drives', IEEE Trans. on Industry Appl., Vol. 34, No. 4, pp. 832-840, 1998   DOI   ScienceOn
5 W. F. Ray and I. H. Al-Bahadly, 'A sensorless method for determining rotor position for switched reluctance motors', Fifth International Conference on Power Electronics and Variable-Speed Drives, Vol. 6, pp. 7-13, Oct. 1994
6 Kim Ki-Bong, 'Toroidal Switched Reluctance Motor part 1. fundamentals', Korea-Germany symposium 11, pp. 135-141, 1998
7 안진우, '스위치드 릴릭턴스 전동기', 오성미디어 2001.1
8 Lyons, J.P.; MacMinn, S.R.; Preston, M.A, 'Flux-current methods for SRM rotor position estimation', Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting, Vol.1, pp. 482-487, Sept.-Oct. 1991   DOI
9 C. Eyguesier, K .J. Tseng, F. Yan and S. Cao, 'A basic algorithm of sensorless rotor position detection using fuzzy logic for the switched reluctance motor drives', ISIE '99. Proceedings of the IEEE International Symposium on Industrial Electronics, Vol. 2, pp. 684-688, July 1999   DOI