誘導電動機の磁束検出 Detection of Magnetic Flux in Induction Motors

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Performances of vector controlled induction motor are improved by knowing the spacial position of the rotating magnetic flux in the induction motor at every instant. Usually. hole generators are buried in the teeth of the stator for detecting the air gap flux. However, this method is strongly affected with the slot ripple and does not work well due to the high temperature operating condition.<br>This paper proposes a novel and effective method for detecting the magnetic flux. Zero magnetic field sensor(MFS) is applied, which is buried in the yoke of the stator, since it has a wide operating temperature range (-76_??_300°C) with the high accuracy of 0.1%. Two components, radial component and tangential one, are investigated for which is more fit for the purpose. Both of them include no slot ripple but their wave distortion is inevitable owing to the nonlinearity of the core. Inadition, the value of the detected flux also varies as a function of the mounted position of MFS. Their degree is much smaller in the tangential component than that in the radial one. This signifies that the tangential component is profitable for our purpose. The effect of the wave distortion can be almost completely suppressed by properly arranging three MFSs based on the three phase theory without using any filters. DC flux at zero frequency can also be detected. Effectiveness of the proposed method is verified through these experimental investigation.

収録刊行物

  • 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 118(1), 120-126, 1998-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10002726115
  • 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
    4379961
  • 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  NDL  J-STAGE 
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