TS3000控制技术及应用-高生军

1TS3000机组综合控制技术及应用康吉森高生军主要内容压缩机组控制的主要目标压缩机组控制的基本策略ITCC技术的概念和发展CONSENTS3000技术及发展TS3000在各行业中的应用ITCC技术的发展趋势压缩机组控制的主要目标压缩机组控制的基本策略及工程设计考虑机组保护(静态,动态)开停机顺须和调速抽汽控制调速与抽汽解耦控制压缩机防喘控制多段防喘控制回路解耦调速与防喘解耦控制负荷分配控制(与工艺装置优化控制的关系)其它各种边界控制防喘阀,测量元件和其它工艺设计考虑2ITCC技术的概念和发展ITCC技术的概念和发展SteamTurbineControlCompressorSurgeControlCapacityControl-ParallelLoadSharing-ProcessControlDe-coupling-StationPressureControlSignalFailOverStrategyMachineryProtectionAuxiliaryControlMachineryMonitoringOff-lineProcessSimulationOn-lineSurgelineTestTechnologyCONSENTS3000技术及发展TS3000SteamTurbineControlTurbineSpeedControlTurbineStartup/StopSequencingSteamSystemControl-Extractioncontrol-SpeedandExtractionDecoupling-limitcontrol3SteamTurbineSequencingCompletelyautomaticstartup–OperatorpushesonebuttonandTS3000smoothlyacceleratestominimumoperatingspeed–SlidingpressurestartupavailableSemi-automaticoperation–Operatorhasflexibilitytohalttheautomaticstartupandmanuallyraise/lowerspeedsetpointAuxiliaryequipmentautomaticallysequenced–Lubeoilpumps–TurninggearSteamTurbineSequencingTurbineSpeedControlPrecisespeedmeasurement–within0.01%MagneticSpeedPickupSelectionBlock–Upto8pickupsperPImodule–Mid-selectfor3ormoreMPU’s–High-selectfor2or1MPU–MPUfailureflagsTurbineSpeedPIDControlSpeedsetpointrampedtotargetsetpointatdefinedramprateFasterramprateenabledincriticalspeedbandsProcessPID’senabledonline–Mechanicaldriveperformancecontrol–Extractioncontrol–GeneratorloadcontrolPIDtuningchangeableonline4SteamExtractionMapMaximumExtractionMinimumExtractionTurbineHorsepowerLimitThrottleFlowShaftPowerTriconexSurgeControlFeaturesTriconexSurgeControlFeaturesUniversalSurgeLineSurgeControllerSetpointHoverAutomaticAdjustmentofSafetyMarginIndependentProportionalTermAdaptiveTuningControlledOpening/SlowClosingofRecycleValveManualRecycleValveControlOptionsUniversalSurgeLineUniversalSurgeLine20406080100012345PdSurgeLinePs__hPs__%SetpointHoverSetpointHover20406080100012345PdSurgeLinePs__hPs__%ControlLineCurrentOperatingPointSetpointHoverHoverSetting5ControlLineRecalibrationControlLineRecalibration20406080100012345PdSurgeLinePs__hPs__%ControlLineCurrentOperatingPointRecalibratedControlLineSurgeOverrideSurgeOverride20406080100012345PdControlLineSurgeLinePs__hPs%0%100%ValveOutputSurgeOverrideLineAdaptiveTuningAdaptiveTuningh/P1MaxGainNormalGainMinGainSurgeLineControlLineManualRecycleValveControlManualRecycleValveControlPartialAuthority–Onlyallowstheoperatortoopenthevalveabovethesurgecontrollerdemand–OperatorcannotclosetherecyclevalvebelowthesurgecontrollerdemandFullAuthority–Allowsoperatortoclosetherecyclevalvebelowthesurgecontrollerdemand–Usedifflowtransmitterfails–Usefultostroketestrecyclevalvepriortostartup–Keyswitchaccess6CompressorLoadsharingObjectivesProtectcompressorsfromsurgeEliminateflowinstabilitiesMoveeachcompressornearitsoptimumoperatingpointEliminateoperationnearrecycleandstonewallconditionsSimplifyoperationandstartupSIGNALFAILOVERSTRATEGYFlows:Failtozero,surgecontrolinmanual,valveholdslastpositionorrampstofailsafepositionPressure:-Failtolastorpresetsafevalue(constant)-Reverttouncompensatedminimumflowcontrol-Increasesurgesafetymarginby5%-SurgecontrolinAutoTemperature:-Failtolastorpresetsafevalue(constant)-SurgecontrolinAutoLowLubeOilPressureTripHighVibration/ThrustTripHighExhaustPressure/TempTripLowInletSteamPressure/TempOverspeedTrip–SecondarytoexternaloverspeedtripOperator-initiatedTripMachineryProtectionMachineryProtection7TurningGear–RotatesturbinetopreventbowingofrotorwhennotrunningLubeOilPumps–Lubricatebearings–DCemergencybackupGlandSteamControl–PreventairfromenteringsteamsystemAuxiliaryControlAuxiliaryControlCondenserLevelControlOilsystemmonitoring–Reservoirlevel–Oilfilterdifferentialpressure–Oilheaderpressuremonitoring–Spareoilpumpstart/stop–OilpressurealarmandtripAuxiliaryControlAuxiliaryControlIntegrationofspecialvibrationmonitoringequipmentintosystemSpecialTriconterminationpanelsfromShinkawaElectric(VM-21)MachineryMonitoringMachineryMonitoringMorethoroughthansimulationpanelsVerifyinteractionofcontrollers(e.g.surgeandprocesscontrollers)VerifyinstrumentfailurestrategyEvaluaterecyclevalvesizingoverwideoperatingconditionsReducecommissioningandstartuptimeTrainoperatorsonthenewcontrolsystemthroughtheDCS/HMIExtendbenefitsofinvestmentthroughongoingoperatorrefreshertrainingProcessSimulationProcessSimulation8SurgeCycleSurgeCycle1.Operatingpointmovesupthecurve2.OperatingpointnearstheSurgeLimit3.OperatingpointgoesintotheSurgeRegion4.Flowreversesasdischargepressuredrops5.Dropindischargepressurere-establishesforwardflow3.Compressorresumesfullflow3-4-5-3Cyclerepeats,unlessstoppedFlow4Pressure1235On-lineSurgelineTestTechnologyOn-lineSurgelineTestTechnologyTriconexTriLoggerPlaybackAutomaticProgramTestManualTsetTestTrend1TestTrend2On-lineSurgelineTestTechnologyOn-lineSurgelineTestTechnology1.乙烯厂的压缩机群È乙烯厂的乙烯装置中一般会包含裂解气压缩机\乙烯压缩机\丙烯压缩机;某些新的应用中将丙烯和乙烯压缩机合成为三元制冷压缩机È这些压缩机的类型一般均为蒸汽透平带动的大型离心式压缩机,而且一般均为多段压缩机,尤其是裂解气压缩机一般会达到