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3-D eddy current analysis in permanent magnet of interior permanent magnet motors

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3 Author(s)
Kawase, Y. ; Dept. of Inf. Sci., Gifu Univ., Japan ; Ota, T. ; Fukunaga, H.

Interior permanent magnet motors are widely used in various fields. However, in high-speed operations, it is important to decrease the eddy current loss in the permanent magnet. Therefore, we propose to divide the permanent magnet. This paper describes a practical technique to analyze the eddy current in the divided magnet. The effect of division of permanent magnet on eddy current loss is also quantitatively clarified

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Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 4 )