A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous Fermentation

In this paper, we consider a multistage feedback control strategy for producing 1,3-propanediol in microbial continuous fermentation. Both the dilution rate and the concentration of glycerol in the input feed are used as control variables, and these variables are further assumed to be in the form of...

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Main Authors: Honghan Bei, Lei Wang, Jing Sun, Liwei Zhang
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2019/6252607
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author Honghan Bei
Lei Wang
Jing Sun
Liwei Zhang
author_facet Honghan Bei
Lei Wang
Jing Sun
Liwei Zhang
author_sort Honghan Bei
collection DOAJ
description In this paper, we consider a multistage feedback control strategy for producing 1,3-propanediol in microbial continuous fermentation. Both the dilution rate and the concentration of glycerol in the input feed are used as control variables, and these variables are further assumed to be in the form of a linear combination of biomass and glycerol concentrations. Unlike the general form of linear feedback control, the coefficients of linear combination are continuous functions with respect to time. Inspired by the control parameterization method, we use the piecewise-constant functions to approximate the coefficient functions; then we get the multistage feedback control law by solving nonlinear mathematical programming problems. Numerical results indicate the flexibility and effectiveness of our strategy.
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institution Kabale University
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spelling doaj-art-0dedaac6cca844fcb9c39e9c3b85bb982025-02-03T01:27:48ZengWileyComplexity1076-27871099-05262019-01-01201910.1155/2019/62526076252607A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous FermentationHonghan Bei0Lei Wang1Jing Sun2Liwei Zhang3School of Mathematical Science, Dalian University of Technology, Dalian, Liaoning 116024, ChinaSchool of Mathematical Science, Dalian University of Technology, Dalian, Liaoning 116024, ChinaSchool of Mathematical Science, Dalian University of Technology, Dalian, Liaoning 116024, ChinaSchool of Mathematical Science, Dalian University of Technology, Dalian, Liaoning 116024, ChinaIn this paper, we consider a multistage feedback control strategy for producing 1,3-propanediol in microbial continuous fermentation. Both the dilution rate and the concentration of glycerol in the input feed are used as control variables, and these variables are further assumed to be in the form of a linear combination of biomass and glycerol concentrations. Unlike the general form of linear feedback control, the coefficients of linear combination are continuous functions with respect to time. Inspired by the control parameterization method, we use the piecewise-constant functions to approximate the coefficient functions; then we get the multistage feedback control law by solving nonlinear mathematical programming problems. Numerical results indicate the flexibility and effectiveness of our strategy.http://dx.doi.org/10.1155/2019/6252607
spellingShingle Honghan Bei
Lei Wang
Jing Sun
Liwei Zhang
A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous Fermentation
Complexity
title A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous Fermentation
title_full A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous Fermentation
title_fullStr A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous Fermentation
title_full_unstemmed A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous Fermentation
title_short A Multistage Feedback Control Strategy for Producing 1,3-Propanediol in Microbial Continuous Fermentation
title_sort multistage feedback control strategy for producing 1 3 propanediol in microbial continuous fermentation
url http://dx.doi.org/10.1155/2019/6252607
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