Design and analysis of a new doubly salient permanent magnet motor

This paper presents the design and analysis of a new doubly salient permane nt magnet (DSPM) motor. The corresponding output power equation is analytic ally derived. The initial calculation of motor dimensions and parameters, n amely, the core diameter, stack length, permanent magnet size, and winding turns, are also discussed. An 8/6-pole DSPM motor is designed and built for exemplification. Moreover, finite element analysis of this motor is carrie d out to investigate the magnetic field distribution at different rotor pos itions and load currents, in which the leakage flux outside the stator circ umference of the DSPM motor is firstly taken into account. Hence, the chara cteristics of the proposed motor are deduced. Experimental results of the p rototype are given to verify the theoretical analysis and to confirm its hi gh efficiency.