©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(110021)(110026)LXL,pH.pH,pH,;,,;,.,,,..:;;;DCS:TQ922;TS264.2,.,,pH.pH,,pH,pH.pH,.,,,.1997651996©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1),,90;(2),;(3),;(4),;(5).,.RL;;BASIC;.23LXLDCS,3.:(1)MOPS1824:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2)FMCU,,,RLMOPS.BSETUMVHMVLt0t1t2t3t4t5()PV7PVMAC2MAC24MVMFCUMOPSCRTRL()()ENCOPS3DCSt0;t3;t1;t4;t2;t5;MVH;MVL(3)pHCO2,.44.14.1.1,,.,.4.,.,.4.1.2pH,pH.12h,,,pH6.8.,NH+4,pH7.0.6h,NH+4,,pH.,pH.pH,,,.NH+4pH,.,pH,2821997©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:112h,32;1220h,34;20h,37.,,PID,.6.5pH64.1.4,:04h;49h;1022h;22h,.,.,.,,..4.2,,.,.,.,,.,,.,3824:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:dxdt=k1x+k2x2dpdt=k3ss+k4x+k5dxdtdsdt=k6dxdt+k7dpdt+k8xdqdt=k9dxdt+k10x,x;s;p;qCO2;k1k10,:k1k2:;k3:,k3,,;k4:,k4,,;k5:,;k6k7k8:;k9k10:CO2..,,.,KalmanXSP,,,,.MOPSBASIC,.,,.55.119949200m3,3,,.3,..5.2,,,.,8.2gödL,49%.50m3,2%.239.4.,,,,.199412,1996.4821997©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:3253302JonesKD.etal.AutomaticTuningPIDControllerforFermentationProccess.ProceedingsofFirstAsianControlConference,1994,1:1491523..,1993,20(5):164..,1991.18(2):16205..:..:,1990.8892ComputerControloftheGlutamicAcidFermentationProcessJiangChanghong(ShenyangInstituteofChemicalTechnology,Shenyang110021)XueTianmingWangXianqiaoHouLi(ShenyangGourmetPowderFactory,Shenyang110026)ABSTRACTThepaperintroducestheapplicationofLXLDCSinthelargestglutamicacidfermenta2tiontankinChina.Ahighqualitycontrolsoftwarehasbeendevelopedconcerningtheimpor2tantparametersofthefermentationprocess,suchaspHvalue,ventilation,fermentationtem2perature,pressure,automaticsyrupflowinjectionandsoon.Inordertoprovidethebestacid2ityenvironmentforthemetabolismofbacteria,anonlinearcompensationcontrolstrategyisusedinthepHcontroltomaintainthestabilityofthepHvalue.Intheventilationcontrol,methodssuchassegmentedsetpointoptimizationhavebeenusedwithgoodcontrolqualityandautomaticsubstrateflowinjectionisusedinculturesupply.Inaddition,acontrolstrate2gysuitabletothebiochemicalprocesshasbeenconfiguredwhichhasachievedsuccessintermsofstabilityfermentationinacidyield.Thepredictionofsomebiochemicalparametershasalsobeenattempted.Keywords:glutamicacid;fermentation;fermentationprocesscontrol;DCS5824: