A discussion of fault-tolerant supervisory control in terms of formal languages

A system is fault tolerant if it remains functional after the occurrence of a fault. Given a plant subject to a fault, fault-tolerant control requires the controller to form a fault-tolerant closed-loop system. For the systematic design of a fault-tolerant controller, typical input data consists of...

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Published inAnnual reviews in control Vol. 41; pp. 159 - 169
Main Author Moor, Thomas
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2016
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ISSN1367-5788
1872-9088
DOI10.1016/j.arcontrol.2016.04.001

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Abstract A system is fault tolerant if it remains functional after the occurrence of a fault. Given a plant subject to a fault, fault-tolerant control requires the controller to form a fault-tolerant closed-loop system. For the systematic design of a fault-tolerant controller, typical input data consists of the plant dynamics including the effect of the faults under consideration and a formal performance requirement with a possible allowance for degraded performance after the fault. For its obvious practical relevance, the synthesis of fault-tolerant controllers has received extensive attention in the literature, however, with a particular focus on continuous-variable systems. The present paper addresses discrete-event systems and provides an overview on fault-tolerant supervisory control. The discussion is held in terms of formal languages to uniformly present approaches to passive fault-tolerance, active fault-tolerance, post-fault recovery and fault hiding.
AbstractList A system is fault tolerant if it remains functional after the occurrence of a fault. Given a plant subject to a fault, fault-tolerant control requires the controller to form a fault-tolerant closed-loop system. For the systematic design of a fault-tolerant controller, typical input data consists of the plant dynamics including the effect of the faults under consideration and a formal performance requirement with a possible allowance for degraded performance after the fault. For its obvious practical relevance, the synthesis of fault-tolerant controllers has received extensive attention in the literature, however, with a particular focus on continuous-variable systems. The present paper addresses discrete-event systems and provides an overview on fault-tolerant supervisory control. The discussion is held in terms of formal languages to uniformly present approaches to passive fault-tolerance, active fault-tolerance, post-fault recovery and fault hiding.
Author Moor, Thomas
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Keywords Passive fault-tolerant control
Fault-tolerant control
Active fault-tolerant control
Supervisory control
Fault-hiding approach
Discrete-event systems
Post-fault recovery
Language English
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Snippet A system is fault tolerant if it remains functional after the occurrence of a fault. Given a plant subject to a fault, fault-tolerant control requires the...
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StartPage 159
SubjectTerms Active fault-tolerant control
Discrete-event systems
Fault-hiding approach
Fault-tolerant control
Passive fault-tolerant control
Post-fault recovery
Supervisory control
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Title A discussion of fault-tolerant supervisory control in terms of formal languages
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