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http://dx.doi.org/10.6113/JPE.2014.14.6.1243

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

Kuai, Song-Yan (school of Information and Electrical Engineering, China University of Mining and Technology)
Li, Xue-Feng (School of Information and Electrical Engineering, China University of Mining and Technology)
Li, Xing-Hong (School of Information and Electrical Engineering, China University of Mining and Technology)
Ma, Jinyang (School of Information and Electrical Engineering, China University of Mining and Technology)
Publication Information
Journal of Power Electronics / v.14, no.6, 2014 , pp. 1243-1253 More about this Journal
Abstract
The phase inductance of a switch reluctance motor (SRM) is significantly nonlinear. With different saturation conditions, the phase inductance shape is clearly changed. This study focuses on the relationship between coefficient and current in an inductance model with ignored harmonics above the order of 3. A position estimation method based on the variable coefficient inductance model is proposed in this paper. A four-quadrant sensorless control system of the SRM drive is constructed based on the relationship between variable coefficient inductance and rotor position. The proposed algorithms are implemented in an experimental SRM test setup. Experimental results show that the proposed method estimates position accurately in operating two/four-quadrants. The entire system also has good static and dynamic performance.
Keywords
Four-quadrant; Rotor position estimation; Switch reluctance motor; Variable coefficient inductance model;
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