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- W2014103586 abstract "In a standard optimization approach, the underlying process model is first identified at a given set of operating conditions and this updated model is, then, used to calculate the optimal conditions for the process. This two-step procedure can be repeated iteratively by conducting new experiments at optimal operating conditions, based on previous iterations, followed by re-identification and re-optimization until convergence is reached. However, when there is a model-plant mismatch, the set of parameter estimates that minimizes the prediction error in the identification problem may not predict the gradients of the optimization objective accurately. As a result, convergence of the two-step iterative approach to a process optimum cannot be guaranteed. This paper presents a new methodology where the model outputs are corrected explicitly for the mismatch such that, with the updated parameter estimates the identification and optimization objectives are properly reconciled. With the proposed corrections being progressively integrated over the iterations, the algorithm has guaranteed convergence to the process optimum and also, upon convergence, the final corrected model predicts the process behavior accurately. The proposed methodology is illustrated in a run-to-run optimization framework with a fed-batch bioprocess as a case study." @default.
- W2014103586 created "2016-06-24" @default.
- W2014103586 creator A5062449947 @default.
- W2014103586 creator A5072957228 @default.
- W2014103586 date "2015-06-01" @default.
- W2014103586 modified "2023-10-16" @default.
- W2014103586 title "Simultaneous model identification and optimization in presence of model-plant mismatch" @default.
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- W2014103586 doi "https://doi.org/10.1016/j.ces.2015.02.038" @default.
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