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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


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