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High‐gain observers for leak location in subterranean pipelines of liquefied petroleum gas
Author(s) -
Torres L.,
Verde C.,
Besançon G.,
González O.
Publication year - 2014
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.2897
Subject(s) - leak , liquefied petroleum gas , pipeline transport , petroleum engineering , leak detection , pipeline (software) , petroleum , observer (physics) , cascade , environmental science , engineering , computer science , geology , waste management , environmental engineering , mechanical engineering , physics , paleontology , quantum mechanics , chemical engineering
SUMMARY This paper describes a scheme based on high‐gain observers to detect and locate leaks in subterranean pipelines of liquefied petroleum gas (LPG). In fact, sub‐observers connected in cascade are used to generate residuals that allow to detect when a leak occurs and, above all, to isolate the region of the pipeline where the leak is located. Once the region is identified, a dedicated observer is employed to more precisely estimate the leak position as well as its coefficient. The approach is validated with data from a real industrial LPG pipeline. Copyright © 2012 John Wiley & Sons, Ltd.