Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances

Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances

A robust fault tolerant control (FTC) approach is addressed for a class of nonlinear systems with time delay, actuator faults, and multiple disturbances. The first part of the multiple disturbances is supposed to be an uncertain modeled disturbance and the second one represents a norm-bounded variab...

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Main Authors: Songyin Cao, Jianzhong Qiao
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Mathematical Problems in Engineering
Online Access:http://dx.doi.org/10.1155/2013/372957
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spelling doaj-0c7a6e63df5a4bde889fd96a4ab901282020-11-24T23:44:08ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472013-01-01201310.1155/2013/372957372957Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple DisturbancesSongyin Cao0Jianzhong Qiao1Department of Automation, College of Information Engineering, Yangzhou University, Yangzhou 225127, ChinaNational Key Laboratory on Aircraft Control Technology, School of Instrumentation Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, ChinaA robust fault tolerant control (FTC) approach is addressed for a class of nonlinear systems with time delay, actuator faults, and multiple disturbances. The first part of the multiple disturbances is supposed to be an uncertain modeled disturbance and the second one represents a norm-bounded variable. First, a composite observer is designed to estimate the uncertain modeled disturbance and actuator fault simultaneously. Then, an FTC strategy consisting of disturbance observer based control (DOBC), fault accommodation, and a mixed H2/H∞ controller is constructed to reconfigure the considered systems with disturbance rejection and attenuation performance. Finally, simulations for a flight control system are given to show the efficiency of the proposed approach.http://dx.doi.org/10.1155/2013/372957
collection DOAJ
language English
format Article
sources DOAJ
author Songyin Cao
Jianzhong Qiao
spellingShingle Songyin Cao
Jianzhong Qiao
Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances
Mathematical Problems in Engineering
author_facet Songyin Cao
Jianzhong Qiao
author_sort Songyin Cao
title Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances
title_short Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances
title_full Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances
title_fullStr Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances
title_full_unstemmed Robust Fault Tolerant Control for a Class of Time-Delay Systems with Multiple Disturbances
title_sort robust fault tolerant control for a class of time-delay systems with multiple disturbances
publisher Hindawi Limited
series Mathematical Problems in Engineering
issn 1024-123X
1563-5147
publishDate 2013-01-01
description A robust fault tolerant control (FTC) approach is addressed for a class of nonlinear systems with time delay, actuator faults, and multiple disturbances. The first part of the multiple disturbances is supposed to be an uncertain modeled disturbance and the second one represents a norm-bounded variable. First, a composite observer is designed to estimate the uncertain modeled disturbance and actuator fault simultaneously. Then, an FTC strategy consisting of disturbance observer based control (DOBC), fault accommodation, and a mixed H2/H∞ controller is constructed to reconfigure the considered systems with disturbance rejection and attenuation performance. Finally, simulations for a flight control system are given to show the efficiency of the proposed approach.
url http://dx.doi.org/10.1155/2013/372957
work_keys_str_mv AT songyincao robustfaulttolerantcontrolforaclassoftimedelaysystemswithmultipledisturbances
AT jianzhongqiao robustfaulttolerantcontrolforaclassoftimedelaysystemswithmultipledisturbances
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