NDLI: Conditions for Detecting and Isolating Sets of Faults in Nonlinear Systems

Content Provider	IEEE Xplore Digital Library
Author	Mattone, R. De Luca, A.
Copyright Year	2005
Description	Author affiliation: Dipartimento di Informatica e Sistemistica, Università di Roma "La Sapienza", Via Eudossiana 18,00184 Roma, Italy deluca@dis.uniroma1.it (Mattone, R.)
Abstract	Consider a nonlinear dynamic system affected by possibly concurrent faults (and disturbances). If we wish to detect and isolate each single fault from all other, possibly concurrent faults and disturbances (i.e., to solve the standard Fault Detection and Isolation (FDI) problem), some necessary conditions of differential geometric nature should be satisfied. To deal with cases when these conditions are structurally violated, we introduce a more general class of FDI problems, referred to as Fault Set Detection and Isolation (FSDI), where the focus of the isolation issue is moved from single to sets of faults. Different formulations of FSDI problems are given, necessary and suficient conditions for their solution are provided, and the design of a hybrid residual generator is presented. For the case of non-concurrent faults, it is possible to detect and isolate even single faults under weaker necessary conditions, by processing output residuals that solve suitable FSDI problems. A robotic example is presented to illustrate the theory.
Starting Page	1005
Ending Page	1010
File Size	184696
Page Count	6
File Format	PDF
ISBN	0780395670
DOI	10.1109/CDC.2005.1582289
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-15
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	IEEE/EUCA
Subject Keyword	Fault detection Nonlinear systems Nonlinear dynamical systems Sufficient conditions Hybrid power systems Automatic control Concurrent computing Robotics and automation Logic Fault tolerant systems nonlinear control Fault detection and isolation fault sets residual matrix isolation logics
Content Type	Text
Resource Type	Article

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