A study on the convergence of observer-based kinetics estimators in stirred tan...

• Author(s): Oliveira, Rui Manuel Freitas ; Ferreira, E. C. ; Oliveira, Filomena ; Azevedo, S. Feyo de
• Date: 1996
• Persistent ID: http://hdl.handle.net/1822/143
• Origin: RepositóriUM - Universidade do Minho
• Subject(s): Estimator; Adaptive; Convergence analysis
• Document Type: Article
• Language: English

Description

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.