A novel switching strategy of SRM for reducing rated current

The switched reluctance motor (SRM) has considerable potential for industrial applications because of its high reliability as a result of the absence of rotor windings. In some applications with SRM, paralleling strategy is often used for cost saving, increasing of current capacity and system reliability. This paper proposes a new paralleling strategy of SRM using parallel winding. While conventional parallel switching devices are connected in one phase winding, power devices are connected in each parallel windings wound in each pole of stator and constructed a phase winding in the proposed method. Paralleling strategy for current sharing in the proposed method can be easily determined without considerations of any nonlinear characteristics of power devices such as conduction resistance, threshold voltage and gain factor. The proposed paralleling strategy is verified by the mathematical analysis and experimental results.