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TitleStudies on on-line state and parameter estimation through a real-time process simulator
Author(s)Azevedo, S. Feyo de
Pimenta, Pedro C. C.
Soares, Filomena
Ferreira, E. C.
KeywordsReal-time simulator
On-line identification
Software sensors
Baker´s yeast
Issue date1992
PublisherPergamon Press
CitationKARIM, M. Nazmul ; STEPHANOPOULOS, G., ed. – “Modeling and Control of Biotechnical Processes 1992 (2nd IFAC Symposium) and Computer Applications to Fermentation Technology (5th International Conference)”. Oxford : Pergamon Press, 1992. p. 453-458.
Abstract(s)A PC-based simulator of non-linear multiple-input multiple-output dynamic systems was employed for studies concerning the on-line estimation of both 'non-measured' state variables and multiple specific growth rates of a virtual baker´s yeast fed-batch fermentation. The identification algorithms were implemented in an 'Observer Computer' which received, optionally in 'real-time', in 'scaled time' or in 'simulation time', the 'measured' state variables generated by the process simulator in the 'Process Computer'. The state observer showed a robust behaviour under different situations where process parameters, operating variables and measuring characteristics (noise and delays) were changed in the process computer. The simulation package was seen to be an efficient and cheap tool for the simulation of non-linear processes with time varying parameters, providing a realistic environment for tests of identification, estimation and control strategies.
TypeConference paper
AccessOpen access
Appears in Collections:CEB - Artigos em Livros de Atas / Papers in Proceedings

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