PMモータの磁極の非対称性に起因するコギングトルクの検討 : コギングトルクの発生条件と評価方法 Cogging Torque Investigation of PM Motors Resulting from Asymmetry Property of Magnetic Poles : Conditions Causing Cogging Torque and Evaluation Method of Rotors

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This paper examines the cogging torque of permanent magnet (PM) motors resulting from the asymmetry property of the magnetic poles. Starting from the theoretical analysis of motor internal magnetic energy, we indicate that the pulsation number per revolution of the above-mentioned cogging torque component can be expressed as the multiple of the number of slots. We show the condition that the above-mentioned cogging torque component is generated as the relation between the MMF spatial distribution mode and the motor design parameters; the number of poles and the number of slots.<br>We propose a motor quality prediction method from the viewpoint of the cogging torque resulting from the asymmetry property of the magnetic poles before the rotor is set into the stator—the magnetic flux density around the rotor is measured first, the measured value is squared, and then the componential analysis is made by DFT. The cogging torque amplitude is predicted by the content rate of the causal asymmetrical component. The effectiveness of the proposed method was confirmed experimentally. The verification motor has 32 poles and 36 slots, which is sensitive to the asymmetry property of the magnetic poles.

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  • 電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society  

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 127(2), 198-207, 2007-02-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018480256
  • NII書誌ID(NCID)
    AN10012320
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09136339
  • NDL 記事登録ID
    8668545
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-1608
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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