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自动化学报 2005
参数不确定离散广义大系统的保性能控制, PP. 808-814 Keywords: Discrete-timesingularlarge-scalesystem,linearmatrixinequality(LMI),parameteruncertainty,guaranteedcostcontrol Abstract: ？Theproblemofoptimalguaranteedcostcontrolfordiscrete-timesingularlarge-scalesystemswithaquadraticcostfunctionisconsideredinthispaper.Thesystemunderdiscussionissubjecttonormboundedtime-invariantparameteruncertaintyinallthematricesofmodel.Theproblemweaddressistodesignastatefeedbackcontrollersuchthattheclosed-loopsystemnotonlyisrobustlystablebutalsoguaranteesanadequatelevelofperformanceforalladmissibleuncertainties.Asufficientconditionfortheexistenceofguaranteedcostcontrollersispresentedintermsoflinearmatrixinequalities(LMIs),andadesiredstatefeedbackcontrollerisobtainedviaconvexoptimization.Anillustrativeexampleisgiventodemonstratetheeffectivenessoftheproposedapproach.
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