Publication
Output-feedback control of combined sewer networks through receding horizon control with moving horizon estimation
Journal Article (2015)
Journal
Water Resources Research
Pages
8129-8145
Volume
51
Number
10
Doc link
http://dx.doi.org/10.1002/2014WR016696
File
Abstract
An output-feedback control strategy for pollution mitigation in combined sewer networks is presented. The proposed strategy provides means to apply model-based predictive control to large-scale sewer networks, in-spite of the lack of measurements at most of the network sewers. In previous works, the authors presented a hybrid linear control-oriented model for sewer networks together with the formulation of Optimal Control Problems (OCP) and State Estimation Problems (SEP). By iteratively solving these problems, preliminary Receding Horizon Control with Moving Horizon Estimation (RHC/MHE) results, based on flow measurements, were also obtained. In this work, the RHC/MHE algorithm has been extended to take into account both flow and water level measurements and the resulting control loop has been extensively simulated to assess the system performance according to different measurement availability scenarios and rain events. All simulations have been carried out using a detailed physically-based model of a real case-study network as virtual reality.
Categories
control system synthesis, observability, optimisation, predictive control.
Author keywords
output-feedback control, moving horizon estimators, sewer networks, urban water cycle
Scientific reference
B. Joseph, C. Ocampo-Martínez and G. Cembrano. Output-feedback control of combined sewer networks through receding horizon control with moving horizon estimation. Water Resources Research, 51(10): 8129-8145, 2015.
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