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Título: | Piece-wise linear functions-based model predictive control of large-scale sewage systems |
Autor: | Ocampo-Martínez, Carlos CSIC ORCID ; Puig, Vicenç CSIC ORCID | Palabras clave: | Large-scale systems Sewer networks Model predictive control Industrial applications Control theory Mathematical programming Nonlinear programming |
Fecha de publicación: | 2010 | Editor: | Institution of Engineering and Technology | Citación: | IET Control Theory and Applications 4(9): 1581-1593 (2010) | Resumen: | In this study, model predictive control (MPC) of large-scale sewage systems is addressed, considering several inherent continuous/discrete phenomena (overflows in sewers and tanks) and elements (weirs) in the system. This fact results in distinct behaviour depending on the dynamic state (flow/volume) of the network. These behaviours cannot be neglected nor can be modelled by a pure linear representation. In order to take into account these phenomena and elements in the design of the control strategy, a modelling approach based on piece-wise linear functions (PWLF) is proposed and compared against a hybrid modelling approach previously suggested by the authors. Control performance results and associated computation times of the closed-loop scheme considering both modelling approaches are compared by using a real case study based on the Barcelona sewer network. Results have shown an important reduction in the computation time when the PWLF-based model is used, with an acceptable suboptimality level in the closed-loop system performance. | Versión del editor: | http://dx.doi.org/10.1049/iet-cta.2009.0206 | URI: | http://hdl.handle.net/10261/30513 | DOI: | 10.1049/iet-cta.2009.0206 | ISSN: | 1751-8644 |
Aparece en las colecciones: | (IRII) Artículos |
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Piece-wise linear.pdf | 535,05 kB | Adobe PDF | Visualizar/Abrir |
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