Abstract
This paper examines the maximum cogging torque (MCT) distribution characteristic of surface-mounted permanent-magnet (SMPM) machines. The MCT distributions of SMPM machines with different pole-arc coefficients and different ratios of slot opening to slot pitch are studied using: 1) the Fourier series analysis together with the Maxwell stress tensor and 2) the finite-element method. Right triangle distribution regions of the optimal MCT are determined by comparing the MCT distribution contour maps obtained by the afore-mentioned two methods. Finally, a combined MCT optimization method for an SMPM with substantial savings in the optimization time, when compared with conventional methods, is proposed.
| Original language | English |
|---|---|
| Article number | 8200505 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 54 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2018 |
Keywords
- Few slots permanent-magnet machines
- maximum cogging torque (MCT)
- right triangle distribution
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
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