Robust fault-tolerant controller design for linear time-invariant systems with actuator failures:an indirect adaptive method

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摘要 Inthispaper,indirectadaptivestatefeedbackcontrolschemesaredevelopedtosolvetherobustfault-tolerantcontrol(FTC)designproblemofactuatorfaultandperturbationcompensationsforlineartime-invariantsystems.Amoregeneralandpracticalmodelofactuatorfaultsispresented.Whilebotheventualfaultsonactuatorsandperturbationsareunknown,theadaptiveschemesareaddressedtoestimatethelowerandupperboundsofactuator-stuckfaultsandperturbationsonline,aswellastoestimatecontroleffectivenessonactuators.Thus,onthebasisoftheinformationfromadaptiveschemes,anadaptiverobuststatefeed-backcontrollerisdesignedtocompensatetheeffectsoffaultsandperturbationsautomatically.AccordingtoLyapunovstabilitytheory,itisshownthattherobustadaptiveclosed-loopsystemscanbeensuredtobeasymptoticallystableundertheinfluenceofactuatorfaultsandboundedperturbations.Anexampleisprovidedtofurtherillustratethefaultcompensationeffectiveness.
机构地区 不详
出版日期 2010年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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