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A Combined Qualitative/Quantitative Approach for Fault Isolation in Continuous Dynamic Systems

Manders, E.J. and Narasimhan, S. and Biswas, G. and Mosterman, P. (2000) A Combined Qualitative/Quantitative Approach for Fault Isolation in Continuous Dynamic Systems. In: Proc. of the 4th Symposium on Fault Detection, Supervision and Safety for Technical Processes (Safeprocess 2000), pp. 1074-1079. 4th Symposium on Fault Detection, Supervision and Safety for Technical Processes (Safeprocess 2000), Budapest, June 14-16, 2000.

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Abstract

The TRANSCEND system for fault detection and isolation in continuous systems uses qualitative reasoning methods to analyze transients caused by abrupt faults. Qualitative transient analysis avoids some of th computational difficulties associated with numerical schemes, but they lack discriminating power. This paper presents the formal basis for qualitative transient analysis, and then establishes the limits of the discriminatory power of this methodology. An integrated scheme that starts with qualitative fault isolation to narrow down possible fault hypotheses, and then uses a focused quantitative parameter estimation scheme to identify the true fault is developed. This approach provides a number of advantages over purely quantitative FDI schemes.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:A Combined Qualitative/Quantitative Approach for Fault Isolation in Continuous Dynamic Systems
Authors:
AuthorsInstitution or Email of Authors
Manders, E.J.Vanderbilt University Nashville
Narasimhan, S.Vanderbilt University Nashville
Biswas, G.Vanderbilt University Nashville
Mosterman, P.UNSPECIFIED
Date:2000
Journal or Publication Title:Proc. of the 4th Symposium on Fault Detection, Supervision and Safety for Technical Processes (Safeprocess 2000)
Page Range:pp. 1074-1079
Editors:
EditorsEmail
IFAC, UNSPECIFIED
Status:Published
Keywords:Fault detection and isolation, monitoring, qualitative analysis, transient analysis, signal to symbol transformation
Event Title:4th Symposium on Fault Detection, Supervision and Safety for Technical Processes (Safeprocess 2000), Budapest, June 14-16, 2000
Organizer:"Fault Detection, Safety and Supervision of Technical Processes" Technical Committee of IFAC
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W SY - Technik für Raumfahrtsysteme
DLR - Research area:Space
DLR - Program:W SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 17:49

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