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:1672643X(2022)02013006
OperationalmodesofXiangjiabaHydropowerStationcoupledwith
twodimensionalhydrodynamicmodelofthenavigationchannel
ZENGYonghong,HUANGMincheng
(SchoolofCivilEngineering,TianjinUniversity,Tianjin300072,China)
Abstract:XiangjiabaHydropowerStationismainlyusedforpowergeneration,butitsoperationisman
datedbytherequirementofsafeflowpatterninthenavigationchannel.Accordingtothestatisticalchar
acteristicsofthetypicaldailyloadoftheEastChinaPowerGrid ,takingintoaccounttheoperatingchar
acteristicsoftheunitandtherequirementsofthehourlyanddailyvariationamplitudeofthewaterlevel ,
wedrewupfivekindsofdailypowerregulationflowforXiangjiabaHydropowerStationbasedontheactu
alwaterflowconditions.Atwodimensionalhydrodynamicmodelwasusedtorevealtheflowpatternat
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;twodimensionalhydrodynamicmodel;hy
dropowerstationoperationalmode;XiangjiabaHydropowerStation
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