ADAPTIVE-CONTROL WITH DIRECT DELAY ESTIMATION

TitleADAPTIVE-CONTROL WITH DIRECT DELAY ESTIMATION
Publication TypeJournal Article
Year of Publication1994
AuthorsELNAGGAR, A., G. A. Dumont, and A. L. ELSHAFEI
JournalPulp & Paper -Canada
Volume95
Pagination35-40
Date PublishedAPR
Type of ArticleArticle
ISSN0316-4004
Keywordsadaptive systems, control systems, delays, estimation
Abstract

This paper addresses the challenging problem of controlling systems with unknown delay and offers a new solution by directly estimating the system delay using the variable regression estimator (VRE). Pole-placement control, Dahlin control and generalized predictive control (GPC) are used with the variable regression estimation and the resulting closed-loop performance enjoys fast adaptation and good regulation with minimum computations. With the VPE direct delay estimation, the GPC tuning parameters can adapt to delay changes in order to provide the same closed-loop performance over the range of delay variation. The VRE-based adaptive controller is successfully applied to an experimental set-up with large delay variations.

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