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- W1977157546 abstract "A multirate adaptive estimation algorithm developed earlier (Gudi et al., 1995) is extended to perform estimation of nutrient levels using frequent on-line measurements of the carbon dioxide evolution rate (CER) and off-line, infrequent and delayed measurements of the biomass and substrate concentrations. It has been shown that the algorithm can be designed to track changing substrate yield coefficients as well. The estimation algorithm has been verified using simulations and industrial data from a fed-batch fermentation involving a Streptomyces specie. It has been coupled with a nonlinear control law designed to track prespecified optimal nutrient trajectories. The resulting closed loop control scheme is evaluated using simulation runs.On generalise un algorithme d'estimation adaptif a taux multiples mis au point anterieurement (Gudi et al., 1995) afin de faire l'estimation des niveaux de nutriments en recourant a des mesures en ligne frequentes de la vitesse d'evolution du gaz carbonique (CER) et a des mesures hors ligne, non frequentes et retardees des concentrations en biomasse et en substrat. On montre que l'algorithme peut ětre concu de facon a suivre egalement la variation des coefficients de rendement des substrats. On a verifie l'algorithme d'estimation par des simulations et avec des donnees industrielles d'un fermenteur alimente en discontinu faisant intervenir une espece de Streptomyces. Cet algorithme a ete couple avec une loi de regulation non lineaire concue pour suivre des trajectoires de nutriments optimales specifiees prealablement. Le schema de contrǒle en boucles fermees resultant est evalue par des essais de simulation." @default.
- W1977157546 created "2016-06-24" @default.
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- W1977157546 date "1997-06-01" @default.
- W1977157546 modified "2023-10-17" @default.
- W1977157546 title "Adaptive multirate estimation and control of nutrient levels in a fed-batch fermentation using off-line and on-line measurements" @default.
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- W1977157546 doi "https://doi.org/10.1002/cjce.5450750310" @default.
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