Estimation of Magnetization Distribution in Permanent Magnet of Brushless DC Motor

Abstract:

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This paper proposes a method to estimate the magnetization distribution in permanent magnet of a Brushless DC motor when the excitation voltage of a magnetizer is changed. First, we show from the experimental results that there is an optimal excitation voltage to reduce the cogging torque of the motor. Next, we show that it is possible to estimate the magnetization distribution in the permanent magnet by using the measured flux density distribution and cogging torque.

Info:

Periodical:

Edited by:

A.G. Mamalis, M. Enokizono and A. Kladas

Pages:

360-368

DOI:

10.4028/www.scientific.net/MSF.670.360

Citation:

T. Ishikawa et al., "Estimation of Magnetization Distribution in Permanent Magnet of Brushless DC Motor", Materials Science Forum, Vol. 670, pp. 360-368, 2011

Online since:

December 2010

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$35.00

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