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Abstract

This paper investigates the influence of laminating process of permendur for improvement of power density motors. A permendur has a high stress sensitivity, however the influence of manufacturing process on the magnetic properties of a permendur has not been sufficently discussed. Therefore, we discussed the influence of manufacturing process by measuring the laminated and single sheet specimen and carrying out 3D analysis of a surface permanent magnet synchronous motor (SPMSM) using the measured magnetic properties of the laminated and the single sheet specimens. As a consequence, deterioration of magnetization property by laminating process does not affect significantly motor property in motors having a wide gap.

Keywords

Permendur laminated specimen mechanical stress

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Deterioration of magnetic property of permendur due to laminating process for improvement of power density in permanent magnet motors

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