Optimal control of wastewater treatment plants using economic-oriented model predictive dynamic strategies
Revollar, Silvana. (Universidad de Salamanca. Departamento de Informática y Automática)
Vega, Pastora (Universidad de Salamanca. Departamento de Informática y Automática)
Vilanova i Arbós, Ramon (Universitat Autònoma de Barcelona. Departament de Telecomunicació i Enginyeria de Sistemes)
Francisco, Mario (Universidad de Salamanca. Departamento de Informática y Automática)

Data:	2017
Resum:	This paper addresses the implementation of economic-oriented model predictive controllers for the dynamic real-time optimization of the operation of wastewater treatment plants (WWTP). Both the economic-optimizing controller (pure-EMPC) and the economic-oriented tracking controller (Hybrid-EMPC, or HEMPC) formulations are validated in the benchmark simulation model (BSM1) platform that represents the behavior of a characteristic activated sludge process. The objective of the controllers is to ensure the appropriate operation of the plant, while minimizing the energy consumption and the fines for violations of the limits of the ammonia concentration in the effluent along the full operating period. A non-linear reduced model of the activated sludge process is used for predictions to obtain a reasonable computing effort, and techniques to deal with model-plant mismatch are incorporated in the controller algorithm. Different designs and structures are compared in terms of process performance and energy costs, which show that the implementation of the proposed control technique can produce significant economic and environmental benefits, depending on the desired performance criteria.
Ajuts:	Ministerio de Economía y Competitividad DPI2015-67341-C2-1-R Ministerio de Economía y Competitividad DPI2016-77271-R
Nota:	Altres ajuts: The Samuel Solórzano Foundation, project FS/21-2015
Nota:	Altres ajuts: IWA Task Group from the Departament of Industrial Electrical Engineering and Automation. Lund University (Sweden) for the BSM1 models.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Wastewater treatment plant ; Activated sludge process ; Dynamic optimization ; Economic model predictive control
Publicat a:	Applied sciences (Basel), Vol. 7, Issue 8 (August 2017) , art. 813, ISSN 2076-3417

DOI: 10.3390/app7080813

21 p, 2.8 MB

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