Adaptive control of delayed integrating systems: a PVC batch reactor

TitleAdaptive control of delayed integrating systems: a PVC batch reactor
Publication TypeJournal Article
Year of Publication2003
AuthorsHuzmezan, M., G. A. Dumont, W. A. Gough, and S. Kovac
JournalControl Systems Technology, IEEE Transactions on
Volume11
Pagination390 - 398
Date Publishedmay.
ISSN1063-6536
Keywordsadaptive control, batch processing (industrial), chemical industry, delay systems, delayed integrating systems, identification, indirect adaptive control, industrial control, Laguerre functions, predictive control, process control, PVC batch reactor, stability, stability margins, time delay, tuning
Abstract

Batch processes are a real challenge for conventional proportional-integral-derivative (PID) controllers. PID tuning can be extremely difficult due to the reduced stability margins. An industrial indirect adaptive control scheme was developed and applied to more than two dozen processes with an integrating time delay characteristic. Among these a polyvinyl chloride (PVC) batch reactor was chosen to illustrate the performance of the proposed method. The scheme, which uses identification based on Laguerre functions and predictive control, allows easy automation of batch reactors. This control strategy resulted in an improved batch consistency, reduced cycle times, and increased productivity.

URLhttp://dx.doi.org/10.1109/TCST.2003.810385
DOI10.1109/TCST.2003.810385

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