The role of model uncertainty in cross-directional control systems - Robustness must be included in controller design

TitleThe role of model uncertainty in cross-directional control systems - Robustness must be included in controller design
Publication TypeJournal Article
Year of Publication2001
AuthorsStewart, G. E., D. M. Gorinevsky, G. A. Dumont, J. U. Backstrom, and C. Gheorghe
JournalPulp & Paper -Canada
Volume102
Pagination22-27
Date PublishedOCT
Type of ArticleProceedings Paper
ISSN0316-4004
Keywordscontrol systems, CROSS DIRECTION, feedback control, Models, variables
Abstract

The performance limitations imposed by model uncertainty for multivariable feedback control systems are well known. The goal of this work is to examine these limitations in terms of cross-directional (CD) control, In CD control, the model uncertainty places limitations on the spatial and dynamical closed-loop bandwidths of a CD control system, which are independent of the feedback control law used. Industrial results are shown for two very different CD processes.

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