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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.
2005 (English)In: Proceedings of the 16th IFAC World Congress: Prague, Czech Republic, July 3 - 8, 2005, Oxford: Elsevier, 2005, 460–465- p.Conference 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. 460–465- p.
, IFAC proceedings series, ISSN 0741-1146 ; 38:1
Research subject
Control Engineering
URN: urn:nbn:se:ltu:diva-35413DOI: 10.3182/20050703-6-CZ-1902.01879Local ID: 9f38e46b-e50e-4ca2-8776-30910f256c83OAI: diva2:1008666
IFAC World Congress : 03/07/2005 - 08/07/2005
Godkänd; 2005; 20160502 (andbra)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Johansson, AndreasBask, Michael
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