マグネット内蔵誘導電動機の力率, 効率特性 Power Factor and Efficiency Characteristics of the Induction Motor with Free Rotating Magnets

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We have developed a unique induction motor that has free rotating magnets inside its rotor. In the experimental results of a prototype motor, we have obtained superior performance over existing motors in terms of the power factor, efficiency and output torque. The experimental details are as follows. The power factor of the test motor is significantly improved as compared with that of conventional induction motor. The power factor can be controlled to be unity, leading or lagging by changing the line frequency and/or source voltage. It is quite a unique feature, because the power factor of usual induction motor is always lagging. The improvement of the power factor becomes effective not only against the decrease of the current loss but against the decrease of voltage drop in line and the increase of installation capacity. The efficiency of the motor, over a wide output power range, is remarkably higher than that of the same size conventional induction motor. Actually, in ordinary induction motor, the efficiency is reduced as the power and/or the source voltage is decreased. However, the proposed motor is driven in the high efficiency by lower source voltage at lower range of power. The efficiency is improved by reducing the secondary current and the magnetizing current.

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 117(8), 986-991, 1997-08 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10002724998
  • 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
    4267308
  • 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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