Double fault distinguishability in linear systems

This paper develops a new approach to double fault isolation in linear systems with the aid of directional residuals. The method of residual generation for computational as well as internal forms is applied. Isolation of double faults is based on the investigation of the coplanarity of the residual...

Full description

Saved in:
Bibliographic Details
Published in:International journal of applied mathematics and computer science 2013-06, Vol.23 (2), p.395-406
Main Authors: Kościelny, Jan Maciej, Łabęda-Grudziak, Zofia M.
Format: Article
Language:English
Subjects:
directional and structured residuals
double fault
fault distinguishability
faults isolation
linear systems
secondary residuals
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper develops a new approach to double fault isolation in linear systems with the aid of directional residuals. The method of residual generation for computational as well as internal forms is applied. Isolation of double faults is based on the investigation of the coplanarity of the residual vector with the planes defined by the individual pairs of directional fault vectors. Additionally, the method of designing secondary residuals, which are structured and directional, is proposed. These transformations allow achieving various isolation properties. It is shown that double fault distinguishability can be improved by decomposing the observed residual vector along the response directions. The described methods are illustrated with a simple computational example.
ISSN:1641-876X
2083-8492
DOI:10.2478/amcs-2013-0030