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约束预测控制器设计的新方法

, PP. 655-661

Keywords: Constraints,invariantset,controllerdesign,stability

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Abstract:

?Usingtheframeworkofpredictivecontrolalgorithmsandtheanalysisresultsofunconstrainedpredictivecontrolsystems,thedesiredpoleplacementisachievedbythecoefficientmappingbetweenthecharacteristicpolynomialsoftheclosed-loopsystemandtheopen-loopplant.Thedesignedcontrollawcannotonlyensurethedynamicalperformanceoftheclosed-loopsystem,butalsoprovideplentifuldegreesoffreedomtosatisfyinput-outputconstraints.Basedonthetheoryofinvariantset,thispaperderivessomesufficientconditionsforthesatisfactionofconstraintswiththesedegreesoffreedomandpresentsanapproachtodesigncorrespondingconstrainedcontroller.Theconstrainedcontrollerwithperformanceguaranteecanbedesignedoff-line.Furthermore,ithasconvenienton-linecomputationandsatisfiesallconstraints.Asimulationexampleispresentedtoillustratetheproposedapproach.

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