Regulation of a Class of Continuous Bioreactor under Switching Kinetic Behavior: Modeling and Simulation Approach

This work shows a class of nonlinear controller implemented to a nonlinear switched system, which describes dynamics of a bioreactor subjected to switching conditions on kinetics. The proposed controller was implemented to a continuous stirred anaerobic bioreactor whose model is derived by classic m...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2015-02, Vol.54 (4), p.1326-1332
Main Authors: Cuevas Ortiz, Fernando A, López-Pérez, Pablo A, Femat, Ricardo, Lara-Cisneros, Gerardo, Aguilar-López, Ricardo
Format: Article
Language:English
Subjects:
Bioreactors
Computer simulation
Control
Dynamical systems
Mathematical models
Nonlinear dynamics
Nonlinearity
Switching
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Summary:This work shows a class of nonlinear controller implemented to a nonlinear switched system, which describes dynamics of a bioreactor subjected to switching conditions on kinetics. The proposed controller was implemented to a continuous stirred anaerobic bioreactor whose model is derived by classic mass balances and where a sulfate-reducing process took place and kinetic regime alteration is induced. The closed-loop stability of the system is shown via Lyapunov functions and in face to distinct kinetic and transition stages. Numerical simulations were performed to compare the proposed controller to a high order sliding mode controller. The control output is capable of making the sulfate concentration converge to the given set-point, regardless the kinetic regime or transition stage it was on.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie504180v