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Flexibilitydemandquantificationandoptimaloperationmodelof
water - wind - solarcomplementarysystem
2
1
1
1
SHENJianjian,WANGYue,CHENGChuntian,ZHANGCongtong,ZHOUBinbin 2
(1.DalianUniversityofTechnology,Dalian 116024,China;
2.YunnanPowerDispatchingControlCenter,Kunming 650011,China)
Abstract:Usingflexibleresourcestoadjustfluctuationofintermittentwindandsolargenerationisanimportant
waytosolvelarge - scaleconsumptionofnewenergy.BasedontheactualprojectofYunnanwind ,photovoltaicand
hydropowercomplementarysystem ,aquantitativemethodofflexibilityrequirementisproposedinthispaper.The
quantilemethodisusedtodeterminetheoutputintervalandgenerateoutputscenariosetsofdifferentprobability,
whichmayquantitativelydescribetheflexibilityrequirementsfacingtheplan.Integratesixflexibilityindexesand
constructthemodelofmaximumexpectedflexibilitymarginandminimumexpectedflexibilitydeficiencytoadaptto
thewind ,photovoltaicandhydropowercomplementaryschedulingindifferentscenariosdynamically.Throughan
exampleofpracticalproject ,theaccuracyofflexibilityrequirementquantificationisanalyzed,aswellastheim
pactofwaterinflows,proportionofnewenergy,theratiobetweenwindandphotovoltaicinstalledcapacity,char
acteristicsofhydroturbine,andtherequirementofpeakshavingonflexibility.Comparedwiththereservecapacity
method,theproposedmodelcanprovideacomplementaryoperationschemesformulti - typepowerplantsunderdif
ferentflexibilityrequirementsofwindandphotovoltaicpowergeneration.
Keywords:flexibility;multi - energycomplementary;short - termoperation;peak - shaving;windandsolarplants
(责任编辑:于福亮)
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