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Development of analytical models of switched reluctance motor in two-phase excitation mode: extended Miller model

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3 Author(s)
Farshad, M. ; Dept. of Electr. & Comput. Eng., Tehran Univ., Iran ; Faiz, J. ; Lucas, C.

This paper models the magnetic coupling effects of phase windings in a typical two-phase excited 6/4 switched reluctance motor (SRM). The flux-linkage characteristics, obtained from the two-dimensional finite-element analysis of the motor, show the major effect of the mutual coupling between the phases particularly for high levels of phase currents. Because the flux-linkage characteristic fully describes the motor behavior, the flux-linkage model is the base for this analysis. Taking into account the advantages of the Miller model, we extended it to two-phase excitation. Even though we used a simple, low-cost, and easily implemented model, it can reasonably predict the flux-linkage characteristics of the two-phase excited SRM. We compared the proposed method with the results of the method reported by Essah and Sudhoff and found that more accurate results are achieved with the proposed method.

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Magnetics, IEEE Transactions on  (Volume:41 ,  Issue: 6 )