Process Identification by Using a Limit Cycle Test with Fractional Harmonics

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A limit cycle test is discussed from the viewpoint of the plant identification, and a practical identification method using the modified limit cycle test is proposed. The limit cycle test is a convenient way to estimate some information of the plant dynamics but only few characteristics are obtained by the conventional way. In this work, the limit cycle test is modified so that the manipulated variable and the process value may contain fractional harmonics, and the plant model is estimated with those fractional harmonic components as well as the basic components. The use of the fractional components enables us to identify the plant model accurately in a noise environment and to handle more sophisticated model: a second order lag plus all-pass filter type one. An experimental example of a thermal plant is illustrated to show the effectiveness of the proposed method where an LQI controller is designed with the identified model of the plant.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 37(3), 449-453, 2004-03-01

    公益社団法人 化学工学会

参考文献:  7件中 1-7件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10013339882
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    6891839
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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