Stabilizability Conditions and Controller Design for Unstable Processes

In this paper, stabilizability conditions are derived for several unstable processes and the limitation of the conventional PID controller analysed in controlling unstable processes with one unstable pole. On the basis of the analysis, control strategy is recommended using an internal feedback loop,...

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Bibliographic Details
Published in:Chemical engineering research & design 2000-05, Vol.78 (4), p.549-556
Main Authors: Kwak, Hee Jin, Sung, Su Whan, Lee, In-Beum
Format: Article
Language:English
Subjects:
internal feedback loop
PID controller
stabilizability
unstable processes
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Summary:In this paper, stabilizability conditions are derived for several unstable processes and the limitation of the conventional PID controller analysed in controlling unstable processes with one unstable pole. On the basis of the analysis, control strategy is recommended using an internal feedback loop, and additionally an optimal tuning strategy is proposed for it with the help of the derived stabilizability conditions.
ISSN:0263-8762
DOI:10.1205/026387600527699