PMモータの固定子製造誤差に起因するコギングトルクの発生条件 Manufacturing Error Conditions Causing Cogging Torque Occurring in Stator in Permanent Magnet Motors

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In this paper we study the condition that the cogging torque occurs, that is caused by manufacturing errors in the stator of PM motors. Manufacturing errors can be classified into the distortion of the magnetic core, the degradation of magnetic properties etc. They are expressed as the asymmetric spatial distribution of permeance, that is, the component of the spatial distribution function whose number of spatial pulsations is not equal to the multiple of the stator slot number. The overviews of this paper are as follows. (1) We derive the relational expression between the spatial pulsation number of the asymmetric component of the permeance distribution function and the pulsation number of cogging torque per revolution. (2) Examples are shown for seven typical motor specifications, each of which has different pole/slot ratio. (3) We conduct finite element analysis for the seven typical motors. The stator cores were distorted and the spatial order of distortion was set to the parameter. The analyzed pulsation number of cogging torque agreed well with the theoretical solutions.

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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 126(8), 1140-1150, 2006-08-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018182106
  • 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
    8055878
  • 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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