Adaptive nonlinear control of a continuous stirred tank reactor

The paper deals with continuous-time nonlinear adaptive control of a continuous stirred tank reactor (CSTR). Control strategy is based on the application of a controller consisting of a linear and a nonlinear part. The static nonlinear part is derived as an inversion and exponential approximation of...

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Bibliographic Details
Published in:Chemical papers 2011-10, Vol.65 (5), p.636-643
Main Authors: Dostál, Petr, Bakošová, Monika, Vojtěšek, Jiří, Bobál, Vladimír
Format: Article
Language:English
Subjects:
adaptive control
Biochemistry
Biotechnology
chemical reactor
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Industrial Chemistry/Chemical Engineering
Materials Science
Medicinal Chemistry
nonlinear control
Original Paper
parameter estimation
polynomial method
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Summary:The paper deals with continuous-time nonlinear adaptive control of a continuous stirred tank reactor (CSTR). Control strategy is based on the application of a controller consisting of a linear and a nonlinear part. The static nonlinear part is derived as an inversion and exponential approximation of measured or simulated input-output data. Design of the dynamic linear part is based on an approximation of nonlinear elements in the control loop by a continuous-time external linear model with directly estimated parameters. In the control design procedure, polynomial approach with the pole assignment method was used. The nonlinear adaptive control was tested by simulations on a nonlinear model of a CSTR with a consecutive exothermic reaction.
ISSN:0366-6352
1336-9075
1336-9075
DOI:10.2478/s11696-011-0057-7