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POLYNOMIAL APPROXIMATION APPROACH TO MODELLING AND CONTROL OF PH PROCESS.
Krzysztof Stebel
Institute of Automatic Control, Silesian University of Technology
ul. Akademicka 16, 44-100 Gliwice, Poland
FAX: (+48) 32 237 21 27;
E-mail: kstebel@terminator.ia.polsl.gliwice.pl
The aim of this paper is to present approximated model of pH process applicable for simulation and control. The highly nonlinear dynamical properties of the pH value to the addition of acid or base make the pH control very difficult. Changes in process sensitivity with pH makes difficult to design conventional controllers. Proposed pH model approximation allows formulating advanced control algorithm in relatively simple way.
Keywords: pH control; control algorithms; model based control; polynomial models; model approximation; computer simulation
Session slot T-We-A21: Posters of Nonlinear Systems/Area code 2c : Non-linear Systems
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