ホール素子を用いたブラシレスDCサーボモータの高効率正弦波同期運転法 A New Sinusoidal Wave Synchronous Drive of a Brushless DC Servomotor Only Using Hall Element Signals

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This paper describes about new method of low torque ripple operation, and wide range velocity control from 10 to 40000rpm of a brushless motor. The proposed method uses only three position signals of Hall elements arranged in the motor and does not need a position-sensor with high resolution or a velocity-sensor which used conventional control system. A sinusoidal wave drive or a square wave drive is selected according to the motor speed and the switch-over is implemented at an appropriate timing to keep out the transitional oscillation. In low speed range, the motor is operated as a plain synchronous motor using sinusoidal wave. The other hand, in high speed range, the motor is driven by square wave generated by position signals of Hall elements, and rotational speed is controlled using PI scheme. If the brushless motor is driven as a synchronous motor, the motor can be made to turn smoothly at low speed range. However, this drive method of the motor is inefficient and also the motor itself heats up at low load. In order to get a high efficiency drive method of the motor, the apply voltage to the winding is adjusted by the torque angle detected by the phase difference between the Hall element signal and the excitation voltage. A technique of switch-over without transitional oscillation which causes when the synchronous speed and the real motor speed are not the same at switch-over point, is also described here. This proposal method will be useful for the application of brushless motor which can be not attached a position-sensor with high resolution or a velocity sensor for small size or environment of operation such as dental hand-piece.

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 122(7), 760-767, 2002-07-01

    The Institute of Electrical Engineers of Japan

参考文献:  8件中 1-8件 を表示

被引用文献:  4件中 1-4件 を表示

各種コード

  • NII論文ID(NAID)
    10008844832
  • 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
    6204677
  • 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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