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

Water

Myrna V. Casillas¹  Luis E. Garza-Castañón¹  Vicenç Puig²  Adriana Vargas-Martinez¹ 

[1] Tecnológico de Monterrey, Campus Monterrey, Monterrey 64849, Mexico; E-Mails:;Department of Automatic Control, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain; E-Mail:

关键词: water distribution networks;    leak location;    linear model approximation;    leak signature space;   

DOI  :  10.3390/w7031129

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland