Variable Coefficient Inductance Model-Based Four-Quadrant Sensorless Control of SRM

Song-Yan Kuai; Xue-Feng Li; Xing-Hong Li; Jinyang Ma

Variable Coefficient Inductance Model-Based Four-Quadrant Sensorless Control of SRM

Vol. 14, No. 6, pp. 1243-1253, Nov. 2014

10.6113/JPE.2014.14.6.1243

Four-quadrant

Rotor position estimation

Switch reluctance motor

Variable coefficient inductance model

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Abstract

The phase inductance of a switch reluctance motor (SRM) is significantly nonlinear. With different saturation conditions, thephase inductance shape is clearly changed. This study focuses on the relationship between coefficient and current in aninductance model with ignored harmonics above the order of 3. A position estimation method based on the variable coefficientinductance model is proposed in this paper. A four-quadrant sensorless control system of the SRM drive is constructed based onthe relationship between variable coefficient inductance and rotor position. The proposed algorithms are implemented in anexperimental SRM test setup. Experimental results show that the proposed method estimates position accurately in operatingtwo/four-quadrants. The entire system also has good static and dynamic performance.

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Cite this article

[IEEE Style]

S. Kuai, X. Li, X. Li, J. Ma, "Variable Coefficient Inductance Model-Based Four-Quadrant Sensorless Control of SRM," Journal of Power Electronics, vol. 14, no. 6, pp. 1243-1253, 2014. DOI: 10.6113/JPE.2014.14.6.1243.

[ACM Style]

Song-Yan Kuai, Xue-Feng Li, Xing-Hong Li, and Jinyang Ma. 2014. Variable Coefficient Inductance Model-Based Four-Quadrant Sensorless Control of SRM. Journal of Power Electronics, 14, 6, (2014), 1243-1253. DOI: 10.6113/JPE.2014.14.6.1243.