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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2616

Title: On-line tuning strategy for PI control algorithms based on simple linear models
Authors: Ali, Emad
Keywords: PI Control
On-line PI tuning
Sensitivity equation
Performance specification
Closed-loop prediction
Issue Date: 15-May-2002
Publisher: The Society of Chemical Engineers
Citation: Journal of Chemical Engineering of Japan: 35(4); 324-333
Abstract: On-line model-based tuning of the parameters of conventional PI control algorithms is considered. This is accomplished by requiring satisfaction of preset performance specifications. The specifications are defined as time-domain response envelopes, which are appealing to the practitioner. The parameter adaptation at each sampling point is accomplished via using a linear relationship between the process output and the PI tuning parameters. Thus the adaptation strategy directly uses the sensitivity of the closed-loop response to the parameters. In this paper, the model used for calculating the sensitivity is a first order model developed by a simple step testing of the plant. Such a model is very common in industrial practice. The efficiency of the method is presented through simulated implementation on two nonlinear reactor examples.
Description: Corresponding Author: Mr. Emad Ali Department of Chemical Engineering King Saud University, Riyadh 11421, P.O.Box 800, Kingdom of Saudi Arabia. Fax:++(9661)467-8770 Email: amkamal@ksu.edu.sa
URI: http://dx.doi.org/10.1252/jcej.35.324
ISSN: 0021-9592
Appears in Collections:College of Engineering

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