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Feedforward computer control of a class of distributed parameter processes

✍ Scribed by J. A. Paraskos; T. J. McAvoy

Book ID
102693408
Publisher
American Institute of Chemical Engineers
Year
1970
Tongue
English
Weight
876 KB
Volume
16
Category
Article
ISSN
0001-1541

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✦ Synopsis

Abstract

A finite difference technique has been developed which is suitable for the derivation of feedforward control algorithms for the control of distributed parameter processes. The method embodies both steady state and transient feedforward compensation.

An experimental study, involving closed loop, on line, analogue computer control of a simple distributed parameter process proves the feasibility of the finite difference technique. The process under study is a steam water heat exchanger subject to inlet temperature forcing and controlled by flow rate manipulation. The new technique yielded significantly improved results when compared with the performance of a conventional two‐mode feedback controller, or a linearized feedforward control algorithm.

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