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:1671-3559(2006)03-0238-04:2006-02-16:(021050101-2):(1979-),,,;(1963-),,,,,PID,(,250022):,,,PID,PID:,,,,:PID;;;(DCS):TP273+.5:B,,,,,PID,,PID,PID,,1,1,,:2228,(),(1)()(2)(),,,,50,0.110.12MPa,0.105MPa,79,107,40,(1)1,,,()3[1],,,,,,TICA102ATICA102B,FI10420320067()JOURNALOFJINANUNIVERSITY(Sci.&Tech1)Vol.20No.3Jul.20062211,[2],ABBAC800F,OPC,CPUProfibus[3],ProfibusDP,126ProfibusDP;DP/PAProfibusPA,126/S800I/O,,,,,2212Window2000,ABBWindowsFreelance2000,,,2,PIDVC6.0,OPC[4](OLEforProcessControl)OPC,OPCClient,OPCServerOPCClientOPCServer,OPC,OPCOPC,;OPC,OPCOPCOPC,2.3PID[5]PID,PID,PIDPID,e(k)e(k)PID[6-7]PID3,EC,,PID,ee,e(k),e(k-1)e(k-2),3PID9323,:PIDe(k)=e(k)-e(k-1)e(k-1)=e(k-1)-e(k-2)e(k)e(k)e(k)e(k-1)IFAANDBTHENC[4]PID,91:IFe(k)MmaxTHEN;2:IFe(k)-MmaxTHEN;3:IFe(k)e(k)0ANDe(k)=MbTHENPID,:P3,I3,D3;4:IFe(k)e(k)0ANDe(k)MbTHENPID,:P4,I4,D4;5:IFe(k)e(k)0ANDe(k)e(k-1)0THENPID,PID:P5,I5,D5;6:IFe(k)e(k)0ANDe(k)e(k-1)0ANDe(k)=MbTHENP,:P6;7:IFe(k)e(k)0ANDe(k)e(k-1)0ANDe(k)MbTHENP,:P7;8:IFe(k)=0THEN;9:IFe(k)THENPI,:P9,I9Mmax,Mb,MmaxMb;Mmax,Mb,PID,43OPC,DCS,PIDDCS,PID,50ms,,OPCVC4PIDaPIDbPID5PID590110(),5aPID48h,,,,5b48h,,95106,,,,042()20PID4,,PID,,,,,,,:[1],.[M].:,2004.[2],.[M].:,2004.[3].DCS[J].,2004,11(5):385-387,423.[4],.DCOMDCSOPC[J].,2004,17(6):31-33.[5].1[M].:,19961[6],.PID[J].,2004,21(4):58-61.[7],.PID[J].,2005,22(1):191-193.ExpertPIDandItsApplicationinDistillationColumnControlSystemWANGChun2yan,WANGXiao2hong(SchoolofControlScienceandEngineering,JinanUniversity,Jinan250022,China)Abstract:DistillationisaMIMOprocess;itsintrinsicmecha2nismiscomplexandithaslargeinertia,timedelay,timevaringchar2acteristics.Itscontroldirectlyinfluencesthequality,productivityandenergyconsumeofproduct.ThepapercombinedexpertcontrolprinciplewithconventionalPIDcontrol,designedandrealizedrealtimeexpertPIDtemperaturecontrolsystem,andexplantedthetech2nicalcharacteristic,thedesignandrealizationofthecontrolsystem.Thesuccessfulapplicationindicatesthatthecontrolsystemcancom2binedwithDCSeffectually,easilyrealizeman-machineconversa2tion,andeasilymaintainandreducetheenergyconsume.Keywords:expertPIDcontrol;distillationcolumn;expertcon2trolsystem;distributedcontrolsystem1423,:PID