Analysis of flux leakage in a segmented core brushless permanent magnet motor

摘要

Magnetic aspects of segmented core brushless permanent magnet motors have been analyzed in this paper. Due to the segmented stator structure, magnetic flux leakages through the tooth-tips become considerable in such a motor. A leakage parameter α is developed here to show the effect of tooth-tip flux leakage that is essential in accurately predicting the air gap flux density in the motor.