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The influence of magnetization pattern on the rotor losses of permanent magnet high-speed machines

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5 Author(s)
Seok-Myeong Jang ; Dept. of Electr. Eng., Chungnam Nat. Univ., Daejeon, South Korea ; Han-Wook Cho ; Sung-Ho Lee ; Hyun-Sup Yang
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This paper deals with the comparison of two types of permanent magnet high-speed machines. Specifically, the effect of permanent magnet magnetization pattern on the rotor losses is investigated. On the basis of analytical field analysis and two-dimensional (2-D) finite-element method, this paper predicts the flux harmonics and rotor losses under no-load condition. It is shown that the Halbach magnetization is superior to parallel magnetization in terms of producing rotor losses.

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Magnetics, IEEE Transactions on  (Volume:40 ,  Issue: 4 )