Abstract
A new type of permanent magnet (PM) brushless claw pole motor (CPM) with soft magnetic composite (SMC) core is designed and analyzed in this paper. The PMs are mounted on the claw pole surface, and the three-phase stator windings are fed by variable-frequency three-phase AC currents. The advantages of the proposed CPM are that the slip rings on the rotor are cast off and it can achieve the efficiency improvement and higher power density. The effects of the claw-pole structure parameters, the air-gap length, and the PM thinner parameter of the proposed CPM on the output torque are investigated by using three-dimensional time-stepping finite element method (3D TS-FEM). The optimal rotor structure of the proposed CPM is obtained by using the response surface methodology (RSM) and the particle swarm optimization (PSO) method and the comparison of full-load performances of the proposed CPM with different material cores (SMC and silicon steel) is analyzed.
Highlights
With the increasing environmental and fuel energy concerns, the focus on automotive electrification has dramatically increased in the last decade
Response surface methodology (RSM) is an interpolation technique that fits a multidimensional function to its function values at some sample points on an particle swarm optimization (PSO) is a an arbitrary arbitrary function function domain
The design method of the proposed claw pole motor (CPM) is studied concerning the construction of the permanent magnet (PM) rotor, core material, claw-pole dimensions and air gap length
Summary
With the increasing environmental and fuel energy concerns, the focus on automotive electrification has dramatically increased in the last decade. In order to improve the power density and the torque density of CPM, many unusual topologies have been presented and analyzed, such as the hybrid excitation CPM [2,3] This kind of motor can prevent field leakage and increase the generator output capability, but it has electric brushes and a slip ring. In [6], the stator and rotor are the claw-pole structure, and the ring PM is inset in stator yoke. (SMC and steel) of is full-load of the proposed CPM with different material cores (SMC and silicon steel) is analyzed performances [15]. In order to design a high-performance CPM, some FEM and optimal methods must be used to compute and analyze its high-performance.
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