Investigation on the Electromagnetic Force Distribution in the Armature Teeth of a Permanent Magnet DC Motor
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- Wang Yijia
- Tokyo University of Agriculture and Technology
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- Yamaguchi Masaki
- Tokyo University of Agriculture and Technology
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- Kano Yoshio
- Tokyo University of Agriculture and Technology
書誌事項
- タイトル別名
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- Investigation on the Electromagnetic Fo
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抄録
The torque, to some extent, is an important performance index of electric motors. In many permanent magnet DC motors, the armature core is slotted with the winding embedded into the slots. What kind of force occurs on the armature teeth (or slot) and hence forms the torque is an interesting problem. In the past some relevant researches were reported, which concluded that all torque came from the force generated in the flanks of the armature teeth, and the force on the teeth surface facing the field magnet contributed nothing to the output torque. The objective of this paper is to investigate the overall electromagnetic force distribution in the armature teeth of a permanent magnet DC motor. An U-shaped core is employed as an analytical model which covers only one tooth pitch of the slotted armature, and the derivation of the force on the surfaces of the U-shaped core is obtained by means of the Maxwell stress method. Experimental results show that both tangential force on the teeth surface facing the field magnet and normal force in the flanks of the teeth contribute to the motion of a rotor. The analytical method and force expressions are verified by the experimental results.
収録刊行物
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- 電気学会論文誌. A
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電気学会論文誌. A 117 (12), 1170-1176, 1997
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204599501824
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- NII論文ID
- 130006839254
- 10002823182
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- NII書誌ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL書誌ID
- 4353380
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可