Neural network-based state estimation for a closed-loop control strategy applied to a fed-batch bioreactor
type: Item
instance of: scholarly article
title: Neural network-based state estimation for a closed-loop control strategy applied to a fed-batch bioreactor
zbMATH Open document ID: 1373.93328
DOI: 10.1155/2017/9391879
author: Santiago Rómoli
author: Mario Serrano
author: Jorge Vega
author: Oscar Ortizm
author: Francisco Guido Rossomando
author: Gustavo J. E. Scaglia
published in: Complexity
publication date: 2017-10-26T00:00:00Z
review text: Summary: The lack of online information on some bioprocess variables and the presence of model and parametric uncertainties pose significant challenges to the design of efficient closed-loop control strategies. To address this issue, this work proposes an online state estimator based on a Radial Basis Function (RBF) neural network that operates in closed loop together with a control law derived on a linear algebra-based design strategy. The proposed methodology is applied to a class of nonlinear systems with three types of uncertainties: (i) time-varying parameters, (ii) uncertain nonlinearities, and (iii) unmodeled dynamics. To reduce the effect of uncertainties on the bioreactor, some integrators of the tracking error are introduced, which in turn allow the derivation of the proper control actions. This new control scheme guarantees that all signals are uniformly and ultimately bounded, and the tracking error converges to small values. The effectiveness of the proposed approach is illustrated on the basis of simulated experiments on a fed-batch bioreactor, and its performance is compared with two controllers available in the literature.
Mathematics Subject Classification ID: 93E10
Mathematics Subject Classification ID: 93B52
Mathematics Subject Classification ID: 92C45
Mathematics Subject Classification ID: 93C10
Mathematics Subject Classification ID: 93C41
zbMATH DE Number: 6798454
zbMATH Keywords: neural network-based state estimation
zbMATH Keywords: closed-loop control
zbMATH Keywords: fed-batch bioreactor
zbMATH Keywords: parametric uncertainties
describes a project that uses: Matlab
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2017/9391879
OpenAlex ID: W2751426245
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description: scientific article; zbMATH DE number 6798454