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|Title:||Fuzzy logic control of an unstable biological reactor||Authors:||Inamdar, S.R.
|Issue Date:||Aug-1997||Citation:||Inamdar, S.R.,Chiu, M.-S. (1997-08). Fuzzy logic control of an unstable biological reactor. Chemical Engineering and Technology 20 (6) : 414-418. ScholarBank@NUS Repository.||Abstract:||In the present work, we employ a fuzzy logic controller (FLC) to control the unstable state of a nonlinear biological reaction. The state variable vectors consist of cell density and substrate concentration. The dilution rate is used as a manipulated variable to control the reaction dynamics. An analytic form of FLC employing Zadeh AND logic along with Center of Mass defuzzification method is considered. Simulations reveal that for servo response test, the FLC shows satisfactory performance for natural unsteady states for which a conventional PI controller is known to fail. Further simulations also show that the FLC gives satisfactory regulatory response and is relatively insensitive to the deviations in model parameters.||Source Title:||Chemical Engineering and Technology||URI:||http://scholarbank.nus.edu.sg/handle/10635/91483||ISSN:||09307516|
|Appears in Collections:||Staff Publications|
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