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| Switched Reluctance Motor Sensorless Speed Control Based on the Improved Simplified Flux Method |
| Li Zhenguo, Li Caihong, Kan Zhizhong, Zhang Chunjiang |
| Yanshan University Qinhuangdao 066004 China |
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Abstract In this paper, one sensorless speed control system of switched reluctance motor (SRM) based on the improved simplified flux method is investigated. The conventional simplified flux based sensorless method is valid with the condition of single phase alternate conducting and current chopping control. As a result, there is coupling between the turn-off period of off-going phase and turn-on period of in-coming phase. This coupling is not good for realizing optimal efficiency or minimize torque ripple in sensorless operation. Therefore, an improved simplified flux method is proposed, in which turn-on angle can be set optionally and separate from turn-off angle. The proposed method only needs the fixed turn-off angle and current chopping control. Accordingly, speed and rotor position are estimated according to the presented method. Finally, the SRM sensorless speed control system is built and experiment results confirm the validity of the presented method.
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Received: 03 November 2010
Published: 07 March 2014
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[1] Krishnan R. Swiiched reluctance moior drives: modeling, simulation, analysis, design and application[M]. Boca Raton, FL, USA: CRC Press, 2001.
[2] Krishnan R．Sensorless operation of SRM drives：R ＆ D status[C]．IECON'01, 2001: 1498-1503.
[3] Lyons J P, MacMinn S R, Preston M A. Flux/current methods for rotor position estimation[C]. Conf. Rec. of IEEE Ind. Appl. Soc., 1991: 482-487.
[4] Panda S K, Amaratunga G A J. Waveform detection technique for indirect rotor position sensing of switched reluctance motor drives, part 1: analysis[C]. IEE Proc. B, 1993: 80-88.
[5] Brosse A, Henneberger G, Schniedermeyer M, et al. Sensorless control of a SRM at low speeds and standstill based on signal power evaluation[C]. Conf. Record of IEEE Industry Appl. Soc., 1998, 1538-1543.
[6] Husain I, Ehsani M. Rotor position sensing in switched reluctance motor drives by measuring mutually induced voltages[J]. IEEE Trans. on Industry Applications, 1994, 30(3): 422-429.
[7] Gallegos Lopez G, Kjaer P C, Miller T J E. A new sensorless method for switched reluctance motor drives[J]. IEEE Trans. on Industry Applications, 1998, 4(34): 832-840.
[8] Ray W F, Bahadly I H Al. A sensorless method for determining rotor position for switched reluctance motors[C]. Proc. of IEE Power Electronics and Variable Speed Drives Conference, 1994: 26-28.
[9] 邱亦慧, 詹琼华, 马志源, 等. 基于简化磁链法的开关磁阻电机间接位置检测[J]. 中国电机工程学报, 2001, 21(10): 59-62.
Qiu Yihui, Zhan Qionghua, Ma Zhiyuan, et al. The indirect position sensing of SRM on the basis of simplified flux method[J]. Proceedings of the CSEE, 2001, 21(10): 59-62. |
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2011, Vol. 26 
