Reduction of Magnet Eddy-Current Loss in Interior Permanent-Magnet Motors With Concentrated Windings

Abstract

In this paper, we develop stator and rotor shapes of interior permanent-magnet motors with concentrated windings in order to reduce the eddy-current loss of the magnets at high rotational speeds under field-weakening control. First, the main factors that cause the magnet eddy-current loss in the motor are investigated from the results of the 3-D finite… (More)

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