An architecture for fault tolerant controllers

Publication: Research - peer-reviewJournal article – Annual report year: 2005

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A general architecture for fault tolerant control is proposed. The architecture is based on the (primary) YJBK parameterization of all stabilizing compensators and uses the dual YJBK parameterization to quantify the performance of the fault tolerant system. The approach suggested can be applied for additive faults, parametric faults, and for system structural changes. The modeling for each of these fault classes is described. The method allows to design for passive as well as for active fault handling. Also, the related design method can be fitted either to guarantee stability or to achieve graceful degradation in the sense of guaranteed degraded performance. A number of fault diagnosis problems, fault tolerant control problems, and feedback control with fault rejection problems are formulated/considered, mainly from a fault modeling point of view. The method is illustrated on a servo example including an additive fault and a parametric fault.
Original languageEnglish
JournalInternational Journal of Control
Publication date20 Sep 2005
Volume78
Journal number14
Pages1091-1110
ISSN0020-7179
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 19

Keywords

  • Fault tolerant control, feedback control, control theory, dynamic systems, fault diagnosis
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