3 D equivalent magnetic circuit network for precise and fast analysis of PM assisted claw pole synchronous motor
PM assisted claw pole synchronous motor (CPSM) has commonly been used in a variety of industrial applications, thanks to its robust structure and high energy density. However, such motor has an axially asymmetric rotor configuration, which induces the corresponding 3 D magnetic field distribution. Thus, this paper develops an infinitesimal hexahedron element based 3 D equivalent magnetic circuit network (EMCN) to estimate the performance of the PM assisted CPSM. The hexahedron element can be considered as an optimum unit element in describing the configuration of the PM assisted CPSM in detail. That eventually makes it possible to analyze the specific 3 D magnetic field distribution from which the flux linkage, the back electro motive force, the d and q axis inductances, and the electromagnetic torque are also being calculated. The results from the 3 D EMCN are compared with those from the 3 D FEA and/or the experiment so as to validate the accuracy. Finally, it is proved that the 3 D EMCN requires a shorter computing time than the 3 D FEA.
2016 IEEE Energy Conversion Congress and Exposition (ECCE)