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Dynamic threshold generators for fault detection in uncertain systems
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0001-8893-4809
2005 (English)In: Proceedings of the 16th IFAC World Congress: Prague, Czech Republic, July 3 - 8, 2005, Oxford: Elsevier, 2005, p. 460-465Conference paper (Refereed)
Abstract [en]

The problem of developing robust thresholds for fault detection is addressed. An inequality for the solution of a linear system with uncertain parameters is provided and is shown to be a valuable tool for developing dynamic threshold generators for fault detection. Such threshold generators are desirable for achieving robustness against model uncertainty in combination with sensitivity to small faults.The usefulness of the inequality is illustrated by developing an algorithm for detection of clogging in the valves of a flotation process. Simulations with measurement data show that the algorithm detects faults without generating false alarms.

Place, publisher, year, edition, pages
Oxford: Elsevier, 2005. p. 460-465
Series
IFAC proceedings series, ISSN 0741-1146 ; 38:1
National Category
Control Engineering
Research subject
Control Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-35413DOI: 10.3182/20050703-6-CZ-1902.01879Local ID: 9f38e46b-e50e-4ca2-8776-30910f256c83OAI: oai:DiVA.org:ltu-35413DiVA, id: diva2:1008666
Conference
IFAC World Congress : 03/07/2005 - 08/07/2005
Note

Godkänd; 2005; 20160502 (andbra)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-12-15Bibliographically approved

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