An influence of voltage sag on non-utility generator shaft torque

Toshihisa Funabashi, Hitomi Otoguro, Takayuki Tanabe, Goro Fujita, Kaoru Koyanagi, Ryuichi Yokoyama

    研究成果: Conference contribution

    8 引用 (Scopus)

    抜粋

    An influence of the voltage sag on the shaft torque of the non-utility generator connecting to the utility system is investigated. During the oscillation of the generator electromagnetic torque, the mechanical shaft torque also oscillates according to the mechanical oscillation modes. In this situation, the shaft might be damaged. Three phase voltage sags are simulated by using ATP-EMTP, changing the fault point impedance and the short-circuit impedance of the utility system while the transformer impedance and the generator parameters are kept constant. The state equation of the generator mechanical system is investigated by using MATLAB/SIMULINK. Numerical simulation results show that the waveform of the electromagnetic torque is influenced not only by the fault point impedance but also by the short circuit impedance of the utility system, and thus a special condition of both impedances, in which the shaft torque has a maximum amplitude, could be found.

    元の言語English
    ホスト出版物のタイトルProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
    ページ2463-2468
    ページ数6
    4
    出版物ステータスPublished - 2000
    イベントProceedings of the 2000 Power Engineering Society Summer Meeting - Seattle, WA
    継続期間: 2000 7 162000 7 20

    Other

    OtherProceedings of the 2000 Power Engineering Society Summer Meeting
    Seattle, WA
    期間00/7/1600/7/20

    ASJC Scopus subject areas

    • Engineering(all)
    • Energy(all)

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  • これを引用

    Funabashi, T., Otoguro, H., Tanabe, T., Fujita, G., Koyanagi, K., & Yokoyama, R. (2000). An influence of voltage sag on non-utility generator shaft torque. : Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference (巻 4, pp. 2463-2468)