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Criterions for detectability and strong detectability of faults in linear systems
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering.
2002 (English)In: International Journal of Control, ISSN 0020-7179, Vol. 75, no 7, 490-501 p.Article in journal (Refereed) Published
Abstract [en]

A fault is (strongly) detectable if it is possible to construct a residual generator that is sensitive to the (constant) fault while decoupling all disturbances. Existing fault detectability criterions are reviewed and in two cases, improved versions are derived. For strong fault detectability, three new criterions are presented. To prove all criterions, a framework of polynomial bases is utilized. With these new and improved criterions, there exists now a criterion for models given both on transfer function form and state-space form, and for both fault detectability and strong fault detectability investigations. Recommendations are given on what criterion to use in different situations.

Place, publisher, year, edition, pages
2002. Vol. 75, no 7, 490-501 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-47015DOI: 10.1080/00207170110121303OAI: diva2:267911
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-13

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Nyberg, Mattias
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The Institute of TechnologyDepartment of Electrical Engineering
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