A new predictive PID controller for the processes with time delay

Kyung Nam Lee, Yeong Koo Yeo

Research output: Contribution to journalArticle

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Abstract

A new proportional-integral-derivative (PID) controller is proposed based upon a simplified generalized predictive control (GPC) control law. The tuning parameters of the proposed predictive PID controller are obtained from the simplified GPC control law for the 1st-order and 2nd-order processes with time delays of integer and non-integer multiples of the sampling time. The internal model technique is employed to compensate the effect of time delay of the target process. The predictive PID controller is equivalent to the PI controller when the target process is 1st-order and to the PID controller when the target process is an integrating process. The performance of the proposed predictive PID controller is almost the same as that of the simplified GPC. The main advantage of the proposed control scheme over other control methods is the ease of tuning and operation.

Original languageEnglish
Pages (from-to)1194-1200
Number of pages7
JournalKorean Journal of Chemical Engineering
Volume26
Issue number5
DOIs
Publication statusPublished - 2009 Sep 1

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Keywords

  • Discrete PID Control Law
  • PID Tuning Method
  • Predictive PID
  • Simplified GPC

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