擬似負荷モデルを導入した電力システム同定による電力動揺モードの推定 Pseudo Load Model-Based Power System Identification for Eigenvalue Estimator

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This paper discusses an eigenvalue estimation method suitable for wide-area and real-time stability monitoring of large power systems. Eigenvalues corresponding to electromechanical dynamics can be obtained from system matrix identified based on synchronized measurements of rotor angles and rotor speeds of generators and load fluctuations. One problem to actualize the eigenvalue estimation is high equipment cost of measuring enormous number of load fluctuations. In the paper, in order to solve the problem, we propose a new concept of pseudo load model which is assumed to express dynamical characteristics of loads. By introducing the load model, the composite dynamics of power systems and loads is identified from the synchronized measurements of only machines. Even if the load fluctuations do not have white noise characteristics, the eigenvalues can be obtained based on the composite dynamics identification. In the paper, the effectiveness of the pseudo load model in eigenvalue estimations is confirmed by simulation studies using 3-machine power system model.

収録刊行物

  • 電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society  

    電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society 127(3), 486-494, 2007-03-01 

    The Institute of Electrical Engineers of Japan

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被引用文献:  3件

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各種コード

  • NII論文ID(NAID)
    10018738517
  • NII書誌ID(NCID)
    AN10136334
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854213
  • NDL 記事登録ID
    8727367
  • 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
    Z16-794
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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