3次元磁界解析によるサイリスタ始動時のタービン発電機回転子まわりの渦電流分布解析 3D Magnetic Field Analysi of Turbine Generator Rotor Eddy Currents for a Static Frequency Converter Starting

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The presence of stator current harmonics from static frequency converter starter operation results in the induction of currents of various magnitudes and frequencies on the surface of the rotor. These eddy currents flow in series-parallel paths comprised of rotor iron, rotor wedges, damper bars and retaining rings and distribute according to the impedance of the paths. If the plural rotor wedges retain field coils in one slot, the eddy current paths are complicated further. This paper describes turbine generator rotor eddy currents and losses for a static frequency converter starting. To consider air parts between a rotor wedge and the adjoining wedge, the currents are calculated by three-dimensional numerical magnetic field analysis. The results are as follows.<br>(1) The eddy currents flow mainly in the wedge.<br>(2) If there are the damper bars, the eddy currents concentrate in the damper bars between two adjoining wedges.<br>(3) If there is no damper bar, the eddy currents concentrate in the rotor tooth between two adjoining wedges.

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(9), 1063-1070, 1998-09 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10002817399
  • 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
    4548594
  • 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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