Dynamic Modeling, Experimental Characterization, and Verification for SRM Operation With Simultaneous Two-Phase Excitation
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TL;DR
A dynamic two-phase excitation model of the SRM using motor symmetry to reduce the amount of flux linkage data needed for the model and comparison with experimental waveforms along with their implications for performance prediction are presented.
Abstract
Dynamic modeling of switched reluctance motors (SRMs) is usually done on a per-phase basis. However, in most applications, SRMs are used with simultaneous excitation of more than one phase. Thus, a model accounting for mutual coupling in the presence of magnetic saturation is needed to predict and optimize their performance in terms of efficiency and torque ripple. This paper presents a dynamic two-phase excitation model of the SRM. Motor symmetry is used to reduce the amount of flux linkage data needed for the model. An experimental procedure to obtain the flux linkage data is described. Measured flux linkage data for the 8/6 SRM are also included. Details of the simulation model and comparison with experimental waveforms along with their implications for performance prediction are presented.