高調波電流実効値最小のPWM変調法及び低電磁音化の評価 Harmonic Current RMS Value Minimized PWM Strategy and Evaluation of Magnetic Noise Reduced Effect

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In recent years, due to the benefits of high efficiency and saving energy, induction motors fed by inverter have been widely used. Because of the distorted output waveform of an inverter, the magnetic noise emitted from the motor is becoming a serious environment problem. To reduce the magnetic noise, the harmonic current must be depressed. Raising the switching frequency of an inverter is a very efficient method to reduce the harmonic current, but it can only be used for high switching speed devices like IGBT's, and another problem of switching loss occurs as the switching frequency is raised.<br>This paper proposes a new PWM method that can be used to reduce the harmonic current. The integrated area of the differences between the locus of ideal flux vector and the actual flux vector can be considered as the total harmonic current RMS value. The proposed new PWM method determines the vector output timing to let the integrated area to be minimum. For the evaluation of low acoustic magnetic noise, the motor acoustic magnetic noise vs. harmonic current characteristic curve is defined, and a new kind of acoustic magnetic noise evaluating method based on this characteristic curve is proposed. At the end of this paper, the experimental results are shown to verify the effectiveness of the proposed method.

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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 117(8), 946-953, 1997-08 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10002724962
  • 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
    4267303
  • 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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