摘要
Inthispaper,indirectadaptivestatefeedbackcontrolschemesaredevelopedtosolvetherobustfault-tolerantcontrol(FTC)designproblemofactuatorfaultandperturbationcompensationsforlineartime-invariantsystems.Amoregeneralandpracticalmodelofactuatorfaultsispresented.Whilebotheventualfaultsonactuatorsandperturbationsareunknown,theadaptiveschemesareaddressedtoestimatethelowerandupperboundsofactuator-stuckfaultsandperturbationsonline,aswellastoestimatecontroleffectivenessonactuators.Thus,onthebasisoftheinformationfromadaptiveschemes,anadaptiverobuststatefeed-backcontrollerisdesignedtocompensatetheeffectsoffaultsandperturbationsautomatically.AccordingtoLyapunovstabilitytheory,itisshownthattherobustadaptiveclosed-loopsystemscanbeensuredtobeasymptoticallystableundertheinfluenceofactuatorfaultsandboundedperturbations.Anexampleisprovidedtofurtherillustratethefaultcompensationeffectiveness.
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)