Dynamic analysis of switched reluctance motor in two different control strategies based on three-phase bridge converter

In this paper, two kinds of control strategies applied to a switched reluctance motor (SRM) with 12/8 teeth configuration have been analyzed based on a three-phase bridge converter. The first strategy is that the three phase SRM windings have to be connected in delta, with a separate diode connected in series with each phase, which is possible to control the voltage and current of each phase independently. The second strategy is that the three-phase windings of SRM are star-connected, and two-phase excitation strategy is applied. Field-circuit coupled finite-element models of SRM are set up in case of two kinds of control strategies respectively. The dynamic performance of SRM is investigated with two different strategies. Compared with the traditional SRM drive based on the asymmetric half-bridge converter, the SRM drive systems proposed in this paper can achieve the similar performance with low cost.