Eddy current loss analysis of electrical steel sheet and permanent magnet using JMAG

Munekatsu Shimada,Hideaki Ono, Nissan Motor Co., Ltd.


By comparing loss analysis results with experimental data, following conclusions were obtained. JMAG’s 3d eddy current loss analysis gives a classical eddy current loss. About 30% of eddy current loss of electrical steel sheets is an anomalous eddy current loss. An eddy current loss of NdFeB permanent magnets contains no anomalous eddy current loss. For further investigations in this loss analysis field, sufficient experimental data are desired.
Key words : eddy current loss, electrical steel sheet, permanent magnet, magnetic field analysis

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