Observer Design for Saccharomyces Cerevisiae Fermentations

https://doi.org/10.58571/CNCA.AMCA.2024.073

Resumen: The estimation of the states of a Saccharomyces cerevisiae (S. cerevisiae) biomass production process using glucose as carbon and energy source in CSTR-type bioreactor cultures was investigated. The biomass estimation was evaluated numerically by implementing the observer in the bioreactor model at a continuous regime. The observer was designed with two terms, one error proportional (Ke) and one sign type (Ksign(e)f(e)). The performance of the proposed observer was compared with the observer published by Bastin and Dochain. For different dilution rates, both observers showed equal performance or the same numerical conditions. Moreover, their response was evaluated for different initial conditions of the model and the estimators with a better performance index of the proposed observer.

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Sánchez López, E.P., Sánchez Hernández Bernardo, L.A., Gutiérrez Villalobos, M., Zárate Castrejón, , J.L., López Pérez, P.A. & Peña Caballero, V. (2024). Observer Design for Saccharomyces Cerevisiae Fermentations. Memorias del Congreso Nacional de Control Automático 2024, pp. 428-433. https://doi.org/10.58571/CNCA.AMCA.2024.073

Palabras clave

Software sensors, Observer design, State estimation, Nonlinear systems, batch fermentation

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