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The on-load voltage distortion in interior permanent magnet (IPM) machine refers to the terminal voltage distorted by armature reaction. In this paper, the mechanism of the on-load voltage distortion have been investigated with the aid of frozen permeability method based on both fractional and integer slot IPM machines. It reveals that the local magnetic saturation caused by armature reaction will...
This paper proposes a new design for a spoke-type BLDC motor using a ferrite permanent magnet (Fe-PM) to improve the reliability of the motor. First, the design process for a neodymium permanent magnet free spoke-type BLDC motor without an inserted additional assistant permanent magnet (PM) is presented. The proposed motor is designed by taking into account the demagnetization phenomenon. Second,...
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