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Design and analysis of a new doubly salient permanent magnet motor

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3 Author(s)
M. Cheng ; Dept. of Electr. & Electron. Eng., Hong Kong Univ., China ; K. T. Chau ; C. C. Chan

This paper presents the design and analysis of a new doubly salient permanent magnet (DSPM) motor. The corresponding output power equation is analytically derived. The initial calculation of motor dimensions and parameters, namely, 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 carried out to investigate the magnetic field distribution at different rotor positions and load currents, in which the leakage flux outside the stator circumference of the DSPM motor is firstly taken into account. Hence, the characteristics of the proposed motor are deduced. Experimental results of the prototype are given to verify the theoretical analysis and to confirm its high efficiency

Published in:

IEEE Transactions on Magnetics  (Volume:37 ,  Issue: 4 )