|
自动化学报 2005
约束预测控制器设计的新方法, PP. 655-661 Keywords: Constraints,invariantset,controllerdesign,stability Abstract: ?Usingtheframeworkofpredictivecontrolalgorithmsandtheanalysisresultsofunconstrainedpredictivecontrolsystems,thedesiredpoleplacementisachievedbythecoefficientmappingbetweenthecharacteristicpolynomialsoftheclosed-loopsystemandtheopen-loopplant.Thedesignedcontrollawcannotonlyensurethedynamicalperformanceoftheclosed-loopsystem,butalsoprovideplentifuldegreesoffreedomtosatisfyinput-outputconstraints.Basedonthetheoryofinvariantset,thispaperderivessomesufficientconditionsforthesatisfactionofconstraintswiththesedegreesoffreedomandpresentsanapproachtodesigncorrespondingconstrainedcontroller.Theconstrainedcontrollerwithperformanceguaranteecanbedesignedoff-line.Furthermore,ithasconvenienton-linecomputationandsatisfiesallconstraints.Asimulationexampleispresentedtoillustratetheproposedapproach.
|