Performance analysis of 8/6-pole doubly salient permanent magnet motor

In this paper, a new 8/6-pole doubly salient permanent magnet (DSPM) motor is proposed and analyzed. The key is to analytically derive the output powe r density of the DSPM motor in terms of the rotor-to-stator pole ratio. Hen ce, the analytical design, finite element analysis, and computer simulation of the proposed 8/6-pole DSPM motor are presented. Compared with the well- known 6/4-pole DSPM motor, the proposed 8/6-pole offers higher power densit y, wider speed range, less torque ripple, and less phase current magnitude.