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Latin American applied research

Print version ISSN 0327-0793

Abstract

BEGOVICH, O.; PIZANO-MORENO, A.  and  BESANCON, G.. Online implementation of a leak isolation algorithm in a plastic pipeline prototype. Lat. Am. appl. res. [online]. 2012, vol.42, n.2, pp.131-140. ISSN 0327-0793.

In this paper, a real-time application of a Leak Detection and Isolation (LDI) algorithm for a plastic pipeline is presented. This LDI algorithm is fed with flow and pressure signals coming from sensors placed at the ends of the pipeline. It uses a flow observer based on a model obtained from the Method of Characteristics, and it is designed in order to assure an acceptable real-time leak isolation by taking into account various practical difficulties. In particular it incorporates an adaptation law for the friction coefficient in order to compensate for possible variations. The whole scheme is successfully tested on a plastic pipeline prototype, transporting water and built as a possible benchmark.

Keywords : Fault Diagnosis; Leak Detection; Nonlinear Estimation; Plastic Pipelines; Water.

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