Set Membership Estimation with Dynamic Flux Balance Models

Autor: Hector Budman, Xin Shen
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Processes
Volume 9
Issue 10
Processes, Vol 9, Iss 1762, p 1762 (2021)
ISSN: 2227-9717
DOI: 10.3390/pr9101762
Popis: Dynamic flux balance models (DFBM) are used in this study to infer metabolite concentrations that are difficult to measure online. The concentrations are estimated based on few available measurements. To account for uncertainty in initial conditions the DFBM is converted into a variable structure system based on a multiparametric linear programming (mpLP) where different regions of the state space are described by correspondingly different state space models. Using this variable structure system, a special set membership-based estimation approach is proposed to estimate unmeasured concentrations from few available measurements. For unobservable concentrations, upper and lower bounds are estimated. The proposed set membership estimation was applied to batch fermentation of E. coli based on DFBM.
Databáze: OpenAIRE