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Título del libro: 2009 European Control Conference, Ecc 2009
Título del capítulo: Estimation of the dilution rate and the states of a microalgae culture using a linear quasi-uknown input observer

Autores UNAM:
EDMUNDO GABRIEL ROCHA COZATL;
Autores externos:

Idioma:
Inglés
Año de publicación:
2014
Palabras clave:

Biological water treatment; Data handling; Delay circuits; Microorganisms; Wastewater treatment; Biological waste water treatment; Dunaliella tertiolecta; Environmental applications; Input reconstruction; Off-line processing; Simultaneous estimation; Substrate concentrations; Unknown input observer; Algae


Resumen:

The simultaneous estimation of unmeasured state variables and unknown inputs is particularly relevant in environmental applications, such as biological wastewater treatment or culture of microalgae in open environments. In this paper, a linear Quasi-Unknown Input Observer (QUIO) is designed and applied to state and input reconstruction in a continuous culture of the marine microalga Dunaliella tertiolecta, where the dilution rate is the unknown input and the internal quota and substrate concentration are the unmeasured variables. A linear framework is suitable for this class of bioprocesses operated in continuous mode as a linearization around an operating point is valid and sufficiently robust. The simulation results and offline processing of real data demonstrate the performance of the method. © 2009 EUCA.


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