Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Sensorless Control of a Single-Phase Switched Reluctance Motor Using Residual Flux

  • Published : 2009.11.20
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Abstract

This paper presents a new sensorless control method for single-phase switched reluctance motors using induced electromotive force (EMF) due to the residual flux both on the stator and the rotor during phase commutation. The induced EMF falls to zero when the rotor pole moves away from the overlap with the stator pole. By detecting this instant, the speed and position of the rotor can be simply estimated. This method is very simple to implement and it is insensitive to variations in the system parameters as it does not require any stored magnetic data or offline inductance measurements but requires only measurements of the terminal voltage and a simple analog circuit. The proposed method is implemented on a 6/6 single-phase switched reluctance motor. However, it can also be implemented on a multiphase SRM regardless of the size, operation speed and switching mode of the motor hence making the proposed method viable to many applications. Simulation and experimental verification is provided to demonstrate the feasibility of the proposed method.

Keywords

References

  1. T.J.E. Miller, "Switched Reluctance Motors and Their Control," Magna Physics Publishing and Clarendon Press. 1993
  2. J. W. Ahn and S. J. Park, "An Analog Encoder for Precise Angle Control of SRM," Journal of Power Electronics, KIPE, Vol. 3, No. 3, pp. 167-174, 2003
  3. B. Fahimi, G. Suresh, and M. Ehsani, "Review of sensorless control methods in switched reluctance motor drives," Conf. Rec. of the 2000 IEEE Ind. Appl. Conf., Vol. 3, pp. 1850-1857, Oct. 2000
  4. R. Krishnan, "Sensorless operation of SRM drives: R & D status," The 27th Ann. Conf. of the IEEE Ind. Electr. Soc., Vol. 2, pp. 1498-1503, Nov.-Dec. 2001
  5. 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 https://doi.org/10.1109/63.988671
  6. 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 https://doi.org/10.1049/ip-epa:20000271
  7. G. Gallegos-Lopez, P. C. Kjaer, T. 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 https://doi.org/10.1109/28.703987
  8. H. Y. Yang, J.G. Kim, Y.C. Lim, S. K. Jeong, and Y. G. Jung, "Position detection and drive of a toroidal Switched Reluctance Motor(TSRM) using searchcoils," IEE Proc.-Electr. Power Appl., Vol. 151, No. 4, pp. 377-384, July 2004 https://doi.org/10.1049/ip-epa:20031288