日本応用磁気学会誌
Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192
論文
磁性くさび適用によるコンデンサモータの歯脈動損低減効果に関する一考察
宮路 剛田島 克文谷口 敏幸佐藤 忠
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ジャーナル オープンアクセス

2003 年 27 巻 9 号 p. 976-981

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抄録

A rotating machine with a stator slot has an energy loss caused by pulsation of the magnetic flux density distribution in the air-gap part. This loss is called the tooth pulsation loss. The purpose of this paper is to discuss the mechanism of a decrease in the tooth pulsation loss achieved by the use of ferrite magnetic wedges. We chose a capacitor motor as an object of analysis. We propose a method for estimating the tooth pulsation loss from the induced voltage of a virtual coil placed on the rotor surface. By analyzing the induced voltage of a virtual coil, using harmonic analysis, we clarified the relation of the tooth pulsation loss to the number of stator slots and the magnetic characteristics of the wedge materials.

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© 2003 (社)日本応用磁気学会
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