Actuator fault-tolerant control based on set separation

In this report an actuator fault-tolerant control (FTC) strategy based on set separation is presented. The proposed scheme employs a bank of observers which match the different fault situations that can occur in the plant. Each of these observers has an associated estimation error with a distinctive...

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Detalles Bibliográficos
Autores: Ocampo-Martínez, Carlos, Doná, J. A. de, Serón, María
Tipo de recurso: otro
Fecha de publicación:2008
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/30080
Acceso en línea:http://hdl.handle.net/10261/30080
Access Level:acceso abierto
Palabra clave:Fault-tolerant control
Actuator faults
Fault diagnosis and isolation
Invariant sets
Automatic control
Control theory
Linear control systems
Adaptive control systems
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spelling Actuator fault-tolerant control based on set separationOcampo-Martínez, CarlosDoná, J. A. deSerón, MaríaFault-tolerant controlActuator faultsFault diagnosis and isolationInvariant setsAutomatic controlControl theoryLinear control systemsAdaptive control systemsIn this report an actuator fault-tolerant control (FTC) strategy based on set separation is presented. The proposed scheme employs a bank of observers which match the different fault situations that can occur in the plant. Each of these observers has an associated estimation error with a distinctive behaviour when a estimator matches the current fault situation of the plant. With this information from each observer, a fault diagnosis and isolation (FDI) module is able to reconfigure the control loop by selecting the appropriate stabilising controller from a bank of precomputed control laws, each of them related to one of the considered fault models. The control law consists of a reference feedforward term and a feedback gain multiplying the state estimate provided by the matching observer. The decision criteria of the FDI is based on the computation of sets towards which the output estimation errors related to each fault scenario and for each control configuration converge. Conditions for the design of the FDI module and for fault tolerant closed-loop stability are given, and the effectiveness of the approach is illustrated by means of a numerical example.This work was supported by the project 'Integración de técnicas avanzadas de modelado, control y supervisión aplicadas a la gestión del ciclo integral del agua' (4797).201020102008info:eu-repo/semantics/otherhttp://purl.org/coar/resource_type/c_18ghinfo:eu-repo/semantics/reporthttp://hdl.handle.net/10261/30080reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/300802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Actuator fault-tolerant control based on set separation
title Actuator fault-tolerant control based on set separation
spellingShingle Actuator fault-tolerant control based on set separation
Ocampo-Martínez, Carlos
Fault-tolerant control
Actuator faults
Fault diagnosis and isolation
Invariant sets
Automatic control
Control theory
Linear control systems
Adaptive control systems
title_short Actuator fault-tolerant control based on set separation
title_full Actuator fault-tolerant control based on set separation
title_fullStr Actuator fault-tolerant control based on set separation
title_full_unstemmed Actuator fault-tolerant control based on set separation
title_sort Actuator fault-tolerant control based on set separation
dc.creator.none.fl_str_mv Ocampo-Martínez, Carlos
Doná, J. A. de
Serón, María
author Ocampo-Martínez, Carlos
author_facet Ocampo-Martínez, Carlos
Doná, J. A. de
Serón, María
author_role author
author2 Doná, J. A. de
Serón, María
author2_role author
author
dc.subject.none.fl_str_mv Fault-tolerant control
Actuator faults
Fault diagnosis and isolation
Invariant sets
Automatic control
Control theory
Linear control systems
Adaptive control systems
topic Fault-tolerant control
Actuator faults
Fault diagnosis and isolation
Invariant sets
Automatic control
Control theory
Linear control systems
Adaptive control systems
description In this report an actuator fault-tolerant control (FTC) strategy based on set separation is presented. The proposed scheme employs a bank of observers which match the different fault situations that can occur in the plant. Each of these observers has an associated estimation error with a distinctive behaviour when a estimator matches the current fault situation of the plant. With this information from each observer, a fault diagnosis and isolation (FDI) module is able to reconfigure the control loop by selecting the appropriate stabilising controller from a bank of precomputed control laws, each of them related to one of the considered fault models. The control law consists of a reference feedforward term and a feedback gain multiplying the state estimate provided by the matching observer. The decision criteria of the FDI is based on the computation of sets towards which the output estimation errors related to each fault scenario and for each control configuration converge. Conditions for the design of the FDI module and for fault tolerant closed-loop stability are given, and the effectiveness of the approach is illustrated by means of a numerical example.
publishDate 2008
dc.date.none.fl_str_mv 2008
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/other
http://purl.org/coar/resource_type/c_18gh
dc.type.openaire.fl_str_mv info:eu-repo/semantics/report
format other
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/30080
url http://hdl.handle.net/10261/30080
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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