Estimación robusta de glucosa en un biorreactor continuo mediante un observador Super-Twisting en Bioreactores Continuos de Tanque Agitado
DOI:
https://doi.org/10.29105/qh15.02-526Keywords:
Estimación por Modo Deslizante Super-Twisting, Reactor Continuo de Tanque Agitado (CSTR)Abstract
Esta investigación ofrece un modelo de estimación en línea de la concentración de glucosa en un biorreactor microbiano continuo (CSTR), utilizando un observador de modo deslizante de segundo orden de tipo Super-Twisting. La razón subyacente reside en que la glucosa, a pesar de ser esencial para la productividad y estabilidad del cultivo, tiende a ser desafiante de cuantificar en tiempo real debido a factores como el costo, la deriva y el retardo analítico. Fundamentado en un modelo de crecimiento no lineal estándar sobre sustrato, se configura un observador Super-Twisting que emplea la biomasa medida como salida y asegura una convergencia sólida del error bajo condiciones de incertidumbre cinética, perturbaciones confinadas y ruido de medición. Para cuantificar el valor añadido del enfoque sugerido, se utiliza un observador Luenberger extendido como referencia y se lleva a cabo una evaluación comparativa en simulación bajo diversos escenarios de ruido e incertidumbre paramétrica. Los hallazgos indican que el observador Super-Twisting consigue una reconstrucción de glucosa más veloz y sólida, con una sensibilidad reducida al ruido y un rendimiento transitorio superior al del Luenberger extendido, lo que subraya su relevancia para el monitoreo y control de bioprocesos en los que la instrumentación directa del sustrato es restringida.
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Copyright (c) 2026 Gerardo Arno Sonk Martinez, Abraham Efraím Rodríguez Mata, Victor alejandro Gonzalez Huitrón, R. M. Cabral Lares, Ricardo E. Lozoya Ponce, Eduardo Jiménez López
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