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Cogging Torque in Cost-Effective Surface-Mounted Permanent-Magnet Machines

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3 Author(s)
Yong Pang ; Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK ; Zhu, Z.Q. ; Feng, Z.J.

Cogging torque, as a very important design consideration in permanent-magnet (PM) machines, has been widely investigated for decades. In this paper, the study will be focused on the cogging torque behavior in surface-mounted PM (SPM) machines with two types of cost-effective PM designs. The results show that in a SPM machine with either type of cost-effective PM design, low cogging torque performance can be achieved, as confirmed by both finite-element analyses and experiments.

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Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 9 )