Title :
On controlling pH
Author :
Jacobs, O.L.R. ; Badran, W.A. ; Proudfoot, C.G. ; While, C.
Author_Institution :
University of Oxford, Department of Engineering Science, Oxford, UK
fDate :
5/1/1987 12:00:00 AM
Abstract :
The paper summarises a recent investigation to find out what contribution could be made to pH regulation by modern algorithms for online estimation and/or adaptive control. Topics discussed include a mathematical model to account for nonlinearity; full-scale trials using selftuning controllers; a specially developed nonlinear estimator; use of resulting estimates to drive a suboptimal `cautious¿¿ control law; and a specialpurpose CAD package. It is concluded that pH regulation is amenable to good engineering practice, and that whether or not this should include modern algorithms is a problem-specific question which can be answered using the CAD package.
Keywords :
adaptive control; control system CAD; pH control; process computer control; CAD package; adaptive control; mathematical model; nonlinear estimator; nonlinearity; pH control; self-tuning controllers;
Journal_Title :
Control Theory and Applications, IEE Proceedings D
DOI :
10.1049/ip-d.1987.0029