MODEL BASED PIPELINE MONITORING WITH LEAK DETECTION

MODEL BASED PIPELINE MONITORING WITH LEAK DETECTION

Adaptive systems

Observers

Partial differential equations

Pipeline leaks

We design a leak detection system consisting of an adaptive Luenberger-type observer based on a set of two coupled one dimensional first order nonlinear hyperbolic partial differential equations governing the flow dynamics. It is assumed that measurements are only available at the inlet and outlet of the pipe, and output injection is applied in the form of boundary conditions. Heuristic update laws for adaptation of the friction coefficient and leak parameters are given, and simulations demonstrate their ability to detect, quantify and locate leaks. Particular attention is given to time-varying boundary conditions, such as during pipeline shut-down. A scenario consisting of leak detection followed by pipeline shut-down during which the leak is accurately quantified and located is successfully simulated for both liquid and gas systems.

318-323

12

40

Hauge, Espen

Aamo, Ole Morten

Godhavn, John-Morten

7th IFAC Symposium on Nonlinear Control Systems

2007

journalArticle

1474-6670

10.3182/20070822-3-ZA-2920.00053