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Proceedings Paper

Two-dimensional control systems: learning from implementations
Author(s): Stephen R. Duncan
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Paper Abstract

The performance of 2-dimensional control systems is discussed in terms of spatial and dynamic bandwidths and is illustrated by examples from the control of cross-directional variations on a plastic film extrusion line. By relating these bandwidths to the specification of the required quality of the finished film and typical disturbances that enter the process, specifications are developed for the design of the actuators, the sensing system and the control algorithm. It is shown that the current generation of control systems is not suitable for controlling variations over small areas of sheet, but a system which regulates over much smaller areas could be developed using recent developments in sensors and 2-dimensional control algorithms.

Paper Details

Date Published: 2 February 2001
PDF: 12 pages
Proc. SPIE 4188, Process Imaging for Automatic Control, (2 February 2001); doi: 10.1117/12.417182
Show Author Affiliations
Stephen R. Duncan, Univ. of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 4188:
Process Imaging for Automatic Control
Hugh McCann; David M. Scott, Editor(s)

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