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Water 2015, 7(3), 1129-1148; doi:10.3390/w7031129

Leak Signature Space: An Original Representation for Robust Leak Location in Water Distribution Networks

1
Tecnológico de Monterrey, Campus Monterrey, Monterrey 64849, Mexico
2
Department of Automatic Control, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Jun Xu
Received: 9 December 2014 / Revised: 5 February 2015 / Accepted: 2 March 2015 / Published: 13 March 2015
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Abstract

In this paper, an original model-based scheme for leak location using pressure sensors in water distribution networks is introduced. The proposed approach is based on a new representation called the Leak Signature Space (LSS) that associates a specific signature to each leak location being minimally affected by leak magnitude. The LSS considers a linear model approximation of the relation between pressure residuals and leaks that is projected onto a selected hyperplane. This new approach allows to infer the location of a given leak by comparing the position of its signature with other leak signatures. Moreover, two ways of improving the method’s robustness are proposed. First, by associating a domain of influence to each signature and second, through a time horizon analysis. The efficiency of the method is highlighted by means of a real network using several scenarios involving different number of sensors and considering the presence of noise in the measurements. View Full-Text
Keywords: water distribution networks; leak location; linear model approximation; leak signature space water distribution networks; leak location; linear model approximation; leak signature space
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Casillas, M.V.; Garza-Castañón, L.E.; Puig, V.; Vargas-Martinez, A. Leak Signature Space: An Original Representation for Robust Leak Location in Water Distribution Networks. Water 2015, 7, 1129-1148.

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