FlexiblePowerSystemDispatchforHigh-penetrationRenewableEnergyIntegrationZhengYanProfessorofElectricalEngineeringShanghaiJiaoTongUniversity2024-082Intra-provincialFlexibleDispatch3Inter-provincialCoordinatedOptimization4ConclusionsandFutureWork1Background189619201987200618961920■19872006Contents2Inter-provincialintegrationofrenewableenergysupportedbyUHVtransmissionMarketMechanismandPowerSystemtoSupportRenewableEnergyIntegrationTheconstructionsofelectricitymarketsandinter-provincialtransmissionsystemsprovidesthemechanismandfacilityforrenewableenergyutilization.Thetotalinstalledcapacityofrenewableenergysurgestomakethepenetrationlevelofrenewableenergyinpowersystemincreaseremarkably,challengingtheProliferationofRenewableEnergyInstalledcapacityofrenewableenergyinintheworld(2016-2021)reliableoperationofpowersystems.DispositionsofelectricitymarketsinChinaInstalledcapacity/n1orwGrowthrate/%43FlexibleResourceCoordinationandDispatchforHigh-penetrationRenewableEnergyIntegrationInter-provincialCoordination(Flexibleresourcecoordination)FlexibilityofRenewableEnergy:Do-not-exceedLimit3Inter-provincialCoordinatedOptimization1BackgroundTechnicalSolutionforPowerSystemDispatchwithRenewableEnergy2Intra-provincialFlexibleDispatch4ConclusionsandFutureWorkState-ProvCoupled:Non-iterativeoptimizationtechState-ProvSeparated:AcceleratedoptimizationtechIntra-provincialDispatch(Flexibleresourcescheduling)FlexibilityofTraditionalUnit:FlexiblerampingproductContents65Problemoftraditionalschedulingmethod■Renewableenergyisregardedasnon-dispatchableresource.Curtailmentofrenewableenergyisafterwardsact,whichaffectssecurityofpowersystemoperations.RenewableenergyasflexibleresourceDNElimitDNEisthemaximumrangeofrenewableenergythatcanbeaccommodatedbythepowergridundersecurityconstraints.■RenewableEnergyiscurtailedaccordingDNE,whichguaranteesthesecurityofpowersystemoperations.■FlexibledispatchoftraditionalpowergenerationunitsSupport■FlexiblerampingproductfortraditionalunitsUnitrampingconstraintscapacityconstraintsCorvenionalunitsarrangementsUnitredisoatchoutputaffineconstraintsFelationshipbetweendispatchedrampingcapacityandreservedrampingcapacityFexiblerampingreserveSchedulingdecisions:Pre-dispatcharrangementsforconventionalunitsSupportPowerPbwlaerncfleowconstcrninraintsStage-1objective:Min.Pre-dispatchcostPowerbalancePowerflowconstraintsconstraintsStage-1decisionSrage-2obletvevariables:Mn.actualsystemConwttiluntsoperatingcostSpinningreserveunpooe■FlexibledispatchconsideringaccommodationcapabilityofrenewableenergyTechnicalPathofIntra-ProvincialFlexibleDispatchDo-not-exceed(DNE)LimitforRenewableEnergyRenewableenergyForecastrenewableActualrenewableenergyoutputenergyoutput→LowerlimitofDNEUpperlimitofDNEPredictedpowerConvetpioinilngunitsroeteprteconstralntsconstraintsRenewableenereyconsumptionrangecanstraintsDo-not-exceedforrenewableStage-1decisionvarlables:CorwentionalunitsarrangemertsTeihblermpinEreserveRelationshipbetweenactualunitscutputanddispatchedrampingcapacity=Stage-2objecive:ActualoperatingoostsandoperatingriskslimitenergyStage-1obectve:Min.Pre-dispatchcostTraditionalunitsWindcurtallment,laad-sheddingconstraintsConventionalunitconstraintsForecastrenewableenergyoutputWindpower/MwPowerbalanceconstraintsPowerbalancecornstrairtsActualrenewableenergyoutputUnitcommitmentconstralntsPowerflowconstraintsPowerf...