Adaptive actuator failure compensation for nonlinear systems with aircraft control application

In a control system, actuator failures may cause significant damaging effect on system performance or even catastrophic accidents. Actuator failure accommodation is very important especially for life critical systems. Two adaptive backstepping control schemes aimed to accommodate actuator failures,...

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Bibliografische gegevens
Hoofdauteur: Li, Xiaolong.
Andere auteurs: Wen Changyun
Formaat: Thesis
Taal:English
Gepubliceerd in: 2013
Onderwerpen:
Online toegang:http://hdl.handle.net/10356/53197
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author Li, Xiaolong.
author2 Wen Changyun
author_facet Wen Changyun
Li, Xiaolong.
author_sort Li, Xiaolong.
collection NTU
description In a control system, actuator failures may cause significant damaging effect on system performance or even catastrophic accidents. Actuator failure accommodation is very important especially for life critical systems. Two adaptive backstepping control schemes aimed to accommodate actuator failures, which are uncertain in time, pattern and value for nonlinear systems are studied. Firstly, a basic design scheme based on existing approaches is considered. However, when actuator failures occur, transient performance of the system cannot be adjusted through changing controller design parameters. Then a new controller design scheme based on a prescribed performance bound (PPB) which characterizes the convergence rate and maximum overshoot of the tracking error is discussed. It is shown that the tracking error satisfies the prescribed performance bound all the time. Simulation studies also verify the results that the PPB based scheme can improve transient performance compared with the basic scheme, while both ensure stability and asymptotic tracking with zero steady state error in the presence of uncertain actuator failures.
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spelling ntu-10356/531972023-07-04T16:06:42Z Adaptive actuator failure compensation for nonlinear systems with aircraft control application Li, Xiaolong. Wen Changyun School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering In a control system, actuator failures may cause significant damaging effect on system performance or even catastrophic accidents. Actuator failure accommodation is very important especially for life critical systems. Two adaptive backstepping control schemes aimed to accommodate actuator failures, which are uncertain in time, pattern and value for nonlinear systems are studied. Firstly, a basic design scheme based on existing approaches is considered. However, when actuator failures occur, transient performance of the system cannot be adjusted through changing controller design parameters. Then a new controller design scheme based on a prescribed performance bound (PPB) which characterizes the convergence rate and maximum overshoot of the tracking error is discussed. It is shown that the tracking error satisfies the prescribed performance bound all the time. Simulation studies also verify the results that the PPB based scheme can improve transient performance compared with the basic scheme, while both ensure stability and asymptotic tracking with zero steady state error in the presence of uncertain actuator failures. Master of Science (Computer Control and Automation) 2013-05-30T07:08:04Z 2013-05-30T07:08:04Z 2011 2011 Thesis http://hdl.handle.net/10356/53197 en 72 p. application/pdf
spellingShingle DRNTU::Engineering::Electrical and electronic engineering
Li, Xiaolong.
Adaptive actuator failure compensation for nonlinear systems with aircraft control application
title Adaptive actuator failure compensation for nonlinear systems with aircraft control application
title_full Adaptive actuator failure compensation for nonlinear systems with aircraft control application
title_fullStr Adaptive actuator failure compensation for nonlinear systems with aircraft control application
title_full_unstemmed Adaptive actuator failure compensation for nonlinear systems with aircraft control application
title_short Adaptive actuator failure compensation for nonlinear systems with aircraft control application
title_sort adaptive actuator failure compensation for nonlinear systems with aircraft control application
topic DRNTU::Engineering::Electrical and electronic engineering
url http://hdl.handle.net/10356/53197
work_keys_str_mv AT lixiaolong adaptiveactuatorfailurecompensationfornonlinearsystemswithaircraftcontrolapplication