Dead-pensation(纯滞后补偿)LeiXieInstituteofIndustrialControl,ZhejiangUniversity,Hangzhou,-pensationImprovedSmithPredictorSimulationExamplesSummaryProblemDiscussion(1)Forthecontrolledprocesses,paretheirresults.(2)pensationapproachesforprocesseswithvariable¬abledead-time?ProcessModels:ConventionalPIDControlSystemsProcessModels:Question:UseZiegler-…SISODelayPlant/#1ForPIDController,Z-Ntuning:Kc=,Ti=4min,Td=1minLambdatuning:Kc=,Ti=4min,Td=1minSimulationExample#2ForPIDController,Z-Ntuning:Kc=,Ti=16min,Td=4minLambdatuning:Kc=,Ti=4min,Td=1minSmith’sIdea(1957)BasicSmithPredictorSmithPredictor#2PleaseseetheSimuLinkmodel…SISODelayPlant/:Kc=,Ti=4min,Td=1minPID+Smith:Kc=2,Ti=4min,Td=1min
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