Stochastic Model Predictive Control and Sewer Network

Jan Lorenz Svensen, Hans Henrik Niemann, Anne Katrine Vinther Falk, Niels Kjølstad Poulsen

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In this work, an evaluation of Chance-Constrained Model Predictive Control (CC-MPC) in sewer systems over the use of the classical deterministic Model Predictive Control (MPC) is presented. The focus of this evaluation is on the avoidance of weir overflow when uncertainty is present. Furthermore, the design formulation of CC-MPC is presented with a comparison to the design of MPC. For the evaluation, a simplified model of the Barcelona sewer network case study is utilized. Our comparison shows that for sewer systems with uncertain inflows, a CC-MPC allows for better statistical guarantees for
avoiding weir overflow, than relying on a deterministic MPC. A simple back-up strategy in case of infeasible optimization program was also apparent for the CC-MPC based on the results of the analysis.
Original languageEnglish
PublisherTechnical University of Denmark
Number of pages6
Publication statusPublished - 2021


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