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- W2008321696 abstract "In this work it is described the industrial implementation of an approach to the re-identification of multivariable processes being controlled by a class of MPC controllers in which the control work is performed in two distinct layers. In the upper layer a steady-state optimization problem is solved and produces a set of optimum targets for the process inputs and/or outputs. These targets are passed to the dynamic layer of the controller that determines the best input trajectory that will drive the process system to these targets while preserving the process constraints. The two layer structure is found in several commercial MPC packages and so, when the practical application is concerned, the approach described here may be useful. In the case considered here, it is assumed that the continuous operation of the process systems cannot be interrupted and the normal process specifications should be maintained inside well defined bounds. These conditions point to the need of a closed-loop procedure. The industrial process selected to illustrate the method considered here is the debutanizer distillation column of a large oil refinery in Brazil. The practical results indicate that the approach can be effective and show a good potential to become the standard procedure to the closed-loop upgrade of process models that have been affected by equipment deterioration or large process excursions into new operating conditions." @default.
- W2008321696 created "2016-06-24" @default.
- W2008321696 creator A5046530260 @default.
- W2008321696 creator A5063493484 @default.
- W2008321696 date "2012-01-01" @default.
- W2008321696 modified "2023-09-23" @default.
- W2008321696 title "Closed-loop re-identification of an industrial debutanizer column" @default.
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- W2008321696 doi "https://doi.org/10.3182/20120710-4-sg-2026.00064" @default.
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