Page 134 - 《水资源与水工程学报》2022年第2期
P. 134

!33 " ! 2 #                       & ' ( ) & * + , -                               Vol.33No.2
               2022 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2022

            DOI:10.11705/j.issn.1672-643X.2022.02.17


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                 HIAJK:TV741   LMNOP:A    LQRK:1672643X(2022)02013006

                    OperationalmodesofXiangjiabaHydropowerStationcoupledwith

                      twodimensionalhydrodynamicmodelofthenavigationchannel

                                           ZENGYonghong,HUANGMincheng
                                  (SchoolofCivilEngineering,TianjinUniversity,Tianjin300072,China)
                 Abstract:XiangjiabaHydropowerStationismainlyusedforpowergeneration,butitsoperationisman
                 datedbytherequirementofsafeflowpatterninthenavigationchannel.Accordingtothestatisticalchar
                 acteristicsofthetypicaldailyloadoftheEastChinaPowerGrid ,takingintoaccounttheoperatingchar
                 acteristicsoftheunitandtherequirementsofthehourlyanddailyvariationamplitudeofthewaterlevel ,
                 wedrewupfivekindsofdailypowerregulationflowforXiangjiabaHydropowerStationbasedontheactu
                 alwaterflowconditions.Atwodimensionalhydrodynamicmodelwasusedtorevealtheflowpatternat
                 theentranceofthedownstreamnavigationchannelwhenthestationwasoperatingatdifferentpowergen
                 erationflows.MIKE21wasusedtosolvethemodelandtwofeasibleschedulingmodeswereselectedfrom
                 indicatorsincludingthechannel ’slateralflowvelocity,longitudinalflowvelocity,waterlevelvariation
                 amplitudeandreturnflowconditions.Finally ,bycomparingthedailypowergenerationofthetwoopera
                 tionalconditions,weascertainedthemostsuitableschedulingmodeforXiangjiabaHydropowerStation.
                 Accordingtothismode ,withanaverageoutputof2,914MW,XiangjiabaHydropowerStationcanreach
                                                 6
                 adailypowergenerationof72.85×10 kW·h.
                 Keywords:navigationchannel;flowpatternattheentrance;twodimensionalhydrodynamicmodel;hy
                 dropowerstationoperationalmode;XiangjiabaHydropowerStation

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