Journal
JOURNAL OF PROCESS CONTROL
Volume 30, Issue -, Pages 50-57Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jprocont.2014.12.006
Keywords
Hybridoma cultures; Nonlinear model predictive control; Unscented Kalman filtering; Biotechnology
Funding
- Interuniversity Attraction Poles Programme
- FEDER (European Union) within the Hainaut-Biomed program (OCPAM project)
- FEDER (Wallonia Region) within the Hainaut-Biomed program (OCPAM project)
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Fed-batch cultures of hybridoma cells are commonly used for the production of monoclonal antibodies (MAb). In this study, a simple macroscopic model of the cell culture is used, which is based on the overflow metabolism paradigm. This allows to specify optimal culture conditions, and the natural formulation of a nonlinear model predictive control strategy (NMPC). As not all the component concentrations are available for measurement, system observability is analyzed, and an unscented Kalman filter (UKF) is designed, which provides satisfactory estimates of glucose and glutamine concentrations. Robustness of the NMPC scheme is investigated, as well as the combined UKF+NMPC scheme, through a minimax robust version and the closed-loop system. (C) 2014 Elsevier Ltd. All rights reserved.
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