Control of a solution copolymerization reactor using multi-model predictive control

We study the control of a solution copolymerization reactor using a model predictive control algorithm based on multiple piecewise linear models. The control algorithm is a receding horizon scheme with a quasi-infinite horizon objective function which has finite and infinite horizon cost components...

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Bibliographic Details
Published in:Chemical engineering science 2003-04, Vol.58 (7), p.1207-1221
Main Authors: Özkan, Leyla, Kothare, Mayuresh V., Georgakis, Christos
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Industrial polymers. Preparations
Linear matrix inequalities
Model predictive control
Nonlinear dynamics
Polymer
Polymer industry, paints, wood
Process control
System engineering
Technology of polymers
Thermoplastics
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Summary:We study the control of a solution copolymerization reactor using a model predictive control algorithm based on multiple piecewise linear models. The control algorithm is a receding horizon scheme with a quasi-infinite horizon objective function which has finite and infinite horizon cost components and uses multiple linear models in its predictions. The finite horizon cost consists of free input variables that direct the system towards a terminal region which contains the desired operating point. The infinite horizon cost has an upper bound and takes the system to the final operating point. Simulation results on an industrial scale methyl methacrylate vinyl acetate solution copolymerization reactor model demonstrate the ability of the algorithm to rapidly transition the process between different operating points.
ISSN:0009-2509
1873-4405
DOI:10.1016/S0009-2509(02)00559-6