Performance analysis of split-winding doubly salient permanent magnet motor for wide speed operation

In this paper, various flux-weakening techniques available for wide speed o peration of the doubly salient permanent magnet (DSPM) motor are reviewed. A new split-winding topology capable of widening the speed range is propose d, which is valid not only for the DSPM motor with stationary PMs, but also for that with rotary PMs. Based on the parameters obtained by finite eleme nt analysis, the performance of the proposed DSPM motor is analyzed. The re sults show that this motor combines the features of wide speed range, high efficiency, simple structure, and lour cost.