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On computing least order fault detectors using rational nullspace bases

Varga, Andras (2003) On computing least order fault detectors using rational nullspace bases. Proc. of IFAC Symposium SAFEPROCESS '03, 2003-06-09 - 2003-06-11, Washington, DC (USA).

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Abstract

We propose a numerically reliable computational approach to design least order fault detectors using descriptor system techniques. This approach is based on a new numerically stable algorithm to compute least order rational nullspace bases of rational matrices. The main computation in this algorithm is the orthogonal reduction of the system pencil matrix to a Kronecker-like form. The proposed approach can be combined with coprime factorization techniques to determine stable rational bases. Least order fault detectors can be determined by selecting an appropriate linear combination of basis vectors by eliminating non-essential dynamics. The proposed approach is applicable to both standard and descriptor system descriptions.

Document Type:Conference or Workshop Item (Paper)
Additional Information:LIDO-Berichtsjahr=2003,
Title:On computing least order fault detectors using rational nullspace bases
Authors:
AuthorsInstitution or Email of Authors
Varga, AndrasUNSPECIFIED
Date:May 2003
Page Range:pp. 229-234
Status:Published
Keywords:Fault detection, rational matrices, minimal rational basis.
Event Title:Proc. of IFAC Symposium SAFEPROCESS '03
Event Location:Washington, DC (USA)
Event Type:international Conference
Event Dates:2003-06-09 - 2003-06-11
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics
Deposited By: elib DLR-Beauftragter
Deposited On:07 Mar 2006
Last Modified:12 Dec 2013 20:02

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