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Sliding mode controlled bioreactor using a time-varying sliding surface

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dc.contributor.author Tokat, S.
dc.date.accessioned 2019-08-16T12:12:43Z
dc.date.available 2019-08-16T12:12:43Z
dc.date.issued 2009
dc.identifier.issn 01423312 (ISSN)
dc.identifier.uri http://acikerisim.pau.edu.tr:8080/xmlui/handle/11499/6904
dc.description.abstract Bioreactor processes based on substrate concentration have both highly non-linear behaviour and parameter uncertainties mostly bounded with physical and biological constraints, which make them a subject area of sliding mode control. This work deals with sliding mode control of a fermentation process in a continuous stirred bioreactor. A new sliding surface is defined using angular information as a function of time that provides adjustable continuous movement of the sliding surface. Computer simulations are presented to show the effectiveness and efficiency of the proposed method and to make a quantitative comparison with the conventional sliding mode controller having a constant sliding surface. The excess amount of substrate concentration in the mixture causes undesired by-product information. Therefore, the substrate concentration should not stay above its desired value for a long time. It is shown in the simulations that the performance of the proposed method, especially in regard to the settling time of the substrate concentration and reaching time, is improved. It is also shown that different system state trajectories could be obtained with the proposed method by adjusting the defined parameters of the angular information. © 2009, The Institute of Measurement and Control. All rights reserved.
dc.language.iso English
dc.relation.isversionof 10.1177/0142331208100893
dc.subject bioreactor control
dc.subject fermentation process
dc.subject sliding mode control
dc.subject sliding surface design
dc.subject substrate concentration
dc.subject Bioreactor control
dc.subject Fermentation process
dc.subject Function of time
dc.subject Nonlinear behaviours
dc.subject Parameter uncertainty
dc.subject Product information
dc.subject Quantitative comparison
dc.subject Settling time
dc.subject Sliding mode controller
dc.subject Sliding modes
dc.subject Sliding surface
dc.subject Sliding surface design.
dc.subject Stirred bioreactors
dc.subject Substrate concentration
dc.subject Substrate concentrations
dc.subject System state
dc.subject Time varying
dc.subject Bioconversion
dc.subject Bioreactors
dc.subject Computer simulation
dc.subject Concentration (process)
dc.subject Fermentation
dc.subject Sliding mode control
dc.subject Substrates
dc.subject Process control
dc.title Sliding mode controlled bioreactor using a time-varying sliding surface
dc.type Article
dc.relation.journal Transactions of the Institute of Measurement & Control
dc.identifier.volume 31
dc.identifier.issue 5
dc.identifier.startpage 435
dc.identifier.endpage 456
dc.identifier.index Scopus


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