Stable and Robust Dissolved Oxygen Control for the Fermentative Process of Bt ä - Endotoxin Production.

AMICARELLI ADRIANA NATACHA; TOIBERO JUAN MARCOS; DI SCIASCIO FERNANDO AGUSTíN

Rosario, Argentina

Workshop; XIII Reunión de Trabajo en Procesamiento de la Información y Control,; 2009

This paper proposes a robustness analysis for a dissolved oxygen controller based on Lyapunov theory. The control strategy is designed for the Bacillus thuringiensis ä-endotoxins production process. First, the control strategy is presented and second, it is considered with a biomass estimator in closed loop and it is shown a robustness analysis for the errors introduced by both: biomass estimation and modeling errors. Simulation results with real experimental data are included in order to discuss the controller performance.