Comparison of four methods of on-line identification and controller tuning

Comparison of four methods of on-line identification and controller tuning

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The work compares four recently proposed on-line methods of identification and controller tuning when the extreme points of the closed-loop response are either accurately known or subject to error. It is shown that Chen's and Lee's methods are relatively robust, with Chen's method giving slightly better estimates of process ultimate data. The method of Jutan and Rodriguez gives acceptable results and Yuwana and Seborg's method is the least acceptable. The work underscores the need to use high feedback gain during identification when experimental data are poor.


    1. 1)
      • A new method for on-line controller tuning
    2. 2)
      • Optimum settings for automatic controllers
    3. 3)
      • heoretical investigations of retarded control
    4. 4)
      • Extension of a new method of on-line controller tuning
    5. 5)
      • On-line PID controller tuning from a single closed-loop test
    6. 6)
      • A simple method of on-line identification and controller tuning
    7. 7)
      • A comparison of three closed-loop PID tuning algorithms

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