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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: 2017 Ieee 3rd Colombian Conference On Automatic Control (ccac) Título del capítulo: Leak Diagnosis in Pipelines by Only Using Flow Measurements
pipelines; fault detection and isolation; estimation; Lienard equation; diagnosis
Resumen:
This paper presents a novel method for diagnosing leaks in a pipeline.
The method is based on a discrete-space version of a Lienard-type model,
which describes the fluid behavior in a pipeline only in terms of the
flow rate. This latter detail was very useful in designing our method,
which was conceived to deal with pipelines solely equipped with
flowmeters or in conjunction with pressure sensors, but which are
temporarily out of service. The working principle of our methodology is
the generation of a set of residuals (each one defined for a specific
section of the pipeline) to estimate the position of a leak. The
residual near zero will indicate the section where a leak is occurring.
The main advantage of our approach is that it does not require pressure
measurements, which occurs in most existing methodologies. Thus, to show
its potential, we present the results of some tests carried out in
simulation.