A study on the convergence of observer-based kinetics estimators in stirred tank bioreactors

This paper is devoted to the tuning problem of an observer-based algorithm for the on-line estimation of reaction rates in stirred tank bioreactors. The relation between the dynamics of convergence and the tuning procedure is explored. The method proposed imposes a variable second-order dynamics on...

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Bibliographic Details
Published inJournal of process control Vol. 6; no. 6; pp. 367 - 371
Main Authors Oliveira, R., Ferreira, E.C., Oliveira, F., Feyo de Azevedo, S.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 1996
Subjects
adaptive
convergence analysis
estimator
estimator
convergence analysis
adaptive
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ISSN0959-1524
1873-2771
DOI10.1016/0959-1524(95)00037-2

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Summary:This paper is devoted to the tuning problem of an observer-based algorithm for the on-line estimation of reaction rates in stirred tank bioreactors. The relation between the dynamics of convergence and the tuning procedure is explored. The method proposed imposes a variable second-order dynamics on the convergence of the estimator. This approach is shown to compare favourably with a pole placement based technique, in an application to a baker's yeast fed-batch fermentation.
ISSN:0959-1524
1873-2771
DOI:10.1016/0959-1524(95)00037-2