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Revista mexicana de ingeniería química
versión impresa ISSN 1665-2738
Resumen
AGUILAR-LOPEZ, R.; LOPEZ-PEREZ, P. A.; NERIA-GONZALEZ, M.I. y DOMINGUEZ-BOCANEGRA, A.R.. Observer based adaptive model for a class of aerobic batch bioreactor. Rev. Mex. Ing. Quím [online]. 2010, vol.9, n.1, pp.29-35. ISSN 1665-2738.
The main issue of this work is to design a nonlinear observer (soft sensor) with finite convergence time for a class of batch bioreacting systems. Considering the necessity to fast response for monitoring and control issues for batch processes a finite time high order sliding-mode observer is considered. It is presented a theoretical analysis to provide a sketch of proof to demonstrate the convergence properties of the proposed observer and the finite time of convergence is calculated from the same analysis. A simple model for a batch aerobic wastewater bioreactor, experimentally corroborated, is proposed as application example and numerical experiments show the adequate observer performance compared to a standard nonlinear Luenberger observer.
Palabras llave : batch processes; bioreactors; finite time convergence; observer design.