計算機シミュレーションによるPWMインバータ・モータ駆動系の電磁波放射特性解析 Using computer simulations to analyze electromagnetic emissions generated in PWM inverter and motor drive systmes

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Electromagnetic wave emissions generated from PWM inverter and motor drive systems are rapidly increasing as switching characteristics of power switching devices used in PWM inverters are increased, and as operating frequencies of microcomputers in the motor drive controllers are also increased This paper discusses emission characteristics generated due to common mode noises which are produced by circuits having with stray capacitances between the PWM inverter frame and the motor frame. It is difficult to cope with reduction of common mode noises emissions in comparison with other differential mode noises. The emissions are analyzed by computer simulations using the method of moments, especially, for the case of emissions connected to the PWM inverter frame and motor frame by a conducting plate. The effects of cable length between the PWM inverter and motor on emissions is also examined In low frequency regions where the structure length of the drive system compromised of the PWM inverter and the motor is less than one-fourth of the electromagnetic wavelength, emissions are remarkably reduced by using a conducting plate between the PWM inverter and the motor. In high frequency regions there is hardly any reduction in emissions. Finally, the resonance phenomenon is shown to occur when cable length between the PWM inverter and the motor is equal to one half of the electromagnetic wavelength.

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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 119(2), 195-203, 1999-02 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10002817614
  • 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
    4642905
  • 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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