Robust sensor placement for leak location: analysis and design

In this paper, a nominal sensor placement methodology for leak location in water distribution networks is presented. To reduce the size and the complexity of the optimization problem a clustering technique is combined with the nominal sensor placement methodology. Some of the pressure sensor placeme...

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Bibliographic Details
Published in:Journal of hydroinformatics 2016-01, Vol.18 (1), p.136-148
Main Authors: Blesa, Joaquim, Nejjari, Fatiha, Sarrate, Ramon
Format: Article
Language:English
Subjects:
Aigua
Automatic control
Automàtica i control
Clustering
Control automàtic
Detection
Detectors
Distribució
Distribution
Distribution management
Genetic algorithms
Informàtica
Leak detection
leak location
Matrices (mathematics)
Matrix methods
Methodology
Multiple objective analysis
Networks
Pareto optimization
Placement
Pressure
Pressure sensors
Process controls
Robustness
robustness analysis
Sensitivity analysis
sensor placement
Sensors
Solutions
Stress concentration
Water - Distribution
Water engineering
Àrees temàtiques de la UPC
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Summary:In this paper, a nominal sensor placement methodology for leak location in water distribution networks is presented. To reduce the size and the complexity of the optimization problem a clustering technique is combined with the nominal sensor placement methodology. Some of the pressure sensor placement methods for leak detection and location in water distribution networks are based on the pressure sensitivity matrix analysis. This matrix depends on the network demands, which are nondeterministic, and the leak magnitudes, that are unknown. The robustness of the nominal sensor placement methodology is investigated against the fault sensitivity matrix uncertainty. Providing upon the dependency of the leak location procedure on the network operating point, the nominal sensor placement problem is then reformulated as a multi-objective optimization for which Pareto optimal solutions are generated. The robustness study as well as the resulting robust sensor placement methodology are illustrated by means of a small academic network as well as a district metered area in the Barcelona water distribution network.
ISSN:1464-7141
1465-1734
DOI:10.2166/hydro.2015.021