Sensorless Control of a Single-Phase Switched Reluctance Motor

Hyong-Yeol Yang; Duck-Shick Shin; Young-Cheol Lim

Sensorless Control of a Single-Phase Switched Reluctance Motor

Hyong-Yeol Yang

Duck-Shick Shin

Young-Cheol Lim

Vol. 9, No. 6, pp. 911-918, Nov. 2009

10.6113/JPE.2009.9.6.911

Position estimation

Sensorless control

Switched reluctance motor

Residual flux

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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.

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Cite this article

[IEEE Style]

H. Yang, D. Shin, Y. Lim, "Sensorless Control of a Single-Phase Switched Reluctance Motor," Journal of Power Electronics, vol. 9, no. 6, pp. 911-918, 2009. DOI: 10.6113/JPE.2009.9.6.911.

[ACM Style]

Hyong-Yeol Yang, Duck-Shick Shin, and Young-Cheol Lim. 2009. Sensorless Control of a Single-Phase Switched Reluctance Motor. Journal of Power Electronics, 9, 6, (2009), 911-918. DOI: 10.6113/JPE.2009.9.6.911.