轧机液压AGC系统动态模型的研究

1998316.(95-528-01-02-01E)(9521601).(GaoYingjie),(WangYiqun),(KongXiangdong),,066004(TheCollegeofMechani2calEngineering,YanshanUniversity,Qinhuangdao066004).AGCTheStudyonTheDynamicModelofHydraulicAGCSysteminaStripMillAGC,,AGC.,,.,,AGC,.AbstractConsideringthecompositionoftheHAGCsystemandtheeffectsoftherollersys2temandthebackreturnline,anewdynamicmodelforhydraulicAGCsysteminastripmillwaspresented.Thesimulationresultsbasedonthismodelshowedthatthemodelissimpleandbeneficialtoanalyzingtheinfluencesofthepro2cessingfactorsonthethicknessaccuracy.Itissignificantfordesigningthecontrollerreasonablyandstudyingontheresponsecapacitiesofthesystem.Keywordsstripmill,rollingprocess,HAGC,systemsimulation.0,AGC(AutomaticGaugeControl),,AGC.AGC,,,[1,3,4].,,.1AGCAGC,,.1Fig1.StructureDiagramoftheHAGCSystem1,AGC,:1)1.xp1,xp2,xpd,xps,xp.2)2.Pd,Ps,P.3)322319987JournalOfYanshanUniversityVol.22No.3July1998©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1].2AGCAGC.2.1,QLQL=Qsv0-KcpL(1)Qsv0,Qsv0=KsvIcIcKsvKcpL,h50Hz,Qsv0Ic=Ksv1+s/sv(2),sv,.2.2QL.:V=VQ-Vc-Vcl=xpAp(3)VQ=QLdt(4)Vc=(Ve-Eo)pL(5)VQVcVcl()xpApVeEoAGC,,,,.pL=Eo(Vc/Ve)(6)F=FP-Fb=pLAp-pbAb(7)FpFbFbpb()Ab2.3F.F=Med2xpdt2+Bpdxpdt+Kxp+FL(8)MeBpKFL(),FLFL=Wh=W(hin-hout)(9)Whhinhout,houthL,hL=hs-hr=hs-(xp-hj)(10)hshrhjhj=F/MP(11)MPMP,[5]0621998©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=1M0+LPEoAP(12)M0[5]LPLP=L0+xp(13)L02.4AGC,[5].,.,pd=pd0+Mord2xpdt2+Rrdxpdt(14)pd0MorMor=LrAb/ArLrArRr2.5Xd/Xp=Ks/(1+Tss)(15)pd/pL=Kf(16)KsTsKf2.6PID,GC(s)=Kp1+1Tis+Tds(17)3AGCAGC,AGC2.2AGCFig.2ThedynamicmodeloftheHAGCsystem,(),.,AGC.AGC[1,3,4],2.,2,AGC1623:AGC©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(9)(11),W,FLhj,.[1].4,,030m,50m,.[5].5AGC,AGC,,,,.1,..:,1996.2ProdipBHOWAL,etal.Modelingandsimulationofhydraulicgapcontrolsysteminahotstripmill.ISIJinternational,1996;36(5):553562.3DiumlijaG,etal.Millmodernizationforimprovementsinstripqualityandyield.SteelTimeInternational,September1995,12.4..:,1985.5Remn-MinGuo.EvaluationofdynamiccharacteristicsofHAGCsystem.IronandsteelEngineer,1991;(7):5263.,196512...:,AGC:AGC.12.2621998©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.