Comparative study of two winding configurations for a double stator switched reluctance machine

This paper compared the effect of full-pitched and tooth windings on performance of double stator switched reluctance machines. The main scope of the research presented here is to obtain higher power/torque density for an existent double stator switched reluctance machine (DSSRM). The chosen approach is intended to reduce the amount of copper by applying a winding configuration that allows shorter end windings, compared to the commonly used full-pitch windings. Magnetic circuit design alterations are introduced for an effective use of the single-tooth windings. A considerable reduction of weight was achieved and domains were defined in which the use of each of the two winding topology is advantageous, considering static average torque output and copper losses of the two DSSRMs. Furthermore, aspect ratio and torque ripple have been taken into consideration to complete the comparison. Simulation results verify the anticipated effect of the single-tooth windings.