Page 46 - 2023年第54卷第11期
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Optimizationschedulingofpumped - storagepowerstationsunderextreme
weatherscenariosconsideringreservoiroperationconstraints
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PENGYumin,LIUDexu,WANGXuelin,YANGYing,CHENMan,ZHONGHaiwang 2
(1.ChinaSouthernPowerGridPowerGenerationCompanyPowerStorageResearchInstitute,Guangzhou 511493,China;
2.SichuanEnergyInternetResearchInstitute,TsinghuaUniversity,Chengdu 610213,China)
Abstract:Underextremeweatherconditions,windandphotovoltaicpowergenerationarenon - synchronizedde
cline,resultinginanincreaseinsystem regulationrequirements.Pumped - storagepowerstationsneedtooperate
flexiblytofillthegapsandmaintainpowersupply - demandbalanceandgridstability.Tosimplifythehydroelectric
conversionrelationship ,coefficientsfor“waterleveldropperunitofelectricitystored”and“electricityconsumed
perunitofwaterlevelrise ”areusedtoestablishabalancedwaterextractionmodelbasedonupperreservoirwater
levelcontrolastheoperatingboundaryconditionsforpumped - storagepowerstation.Consideringextremeweather
conditionssuchasheatwaves,coldwaves,typhoons,sandstorms,andhaze,ahigh - efficiencyandeconomicop
timizationschedulingmodelforpumped - storagepowersystemswithunsynchronizedwindandsolarpowergeneration
isestablished.Thismodelhelpstoalleviatetheimpactofextremeweatheronpowerbalancebybalancingpower
consumptionduringpeakdemand.Thefeasibilityandvalidityoftheproposedconstraintsandmodelsareverified
throughnumericalexamples ,andtheresearchcanprovidedecisionsupportforpowersystemstocopewithsudden
meteorologicalprocessesusingpumped - storagepowerstations.
Keywords:reservoiroperation;extremeweatherscenarios;optimizationscheduling;pumped - storagepowerstation
(责任编辑:韩 昆)
(上接第 1297页)
Gridintegrationpriorityoflarge - scalephotovoltaicpowerand
hydropowerwithinahybridgenerationsystem
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MINGBo,GUOXiaoru,CHENGLong,FANGWei,YUMiao,HUANGQiang
(1.StateKeyLaboratoryofEco - HydraulicsinNorthwestAridRegionofChina,Xi’anUniversityofTechnology,Xi’an 710048,China;
2.PowerChinaNorthwestEngineeringCorporationLimited,Xi’an 710065,China;
3.HuangheHydropowerDevelopmentCo.,Ltd.,Xining 810008,China)
Abstract:Determiningthegridintegrationpriorityofdifferentpowersourcesinahybridgenerationsystem
(HGS)playsanimportantroleinimprovingthesystemperformance.Tothisend,weproposeamethodfordeter
miningthegridintegrationpriorityofhydropowerandlarge - scalephotovoltaic (PV)inahydro !PVHGS.First,
along - andshort - termnestedoperationmodelisestablishedtosimulatethejointoperationprocessofhydropower
andPVpowerindetail.Second ,acomplementaryefficiencyevaluationsystemisestablishedfromthreeaspects:
powergenerationeconomy,resourceuseefficiency,andpowersupplyreliability.Finally,threegirdintegration
scenariosaresetandcomparedtodeterminethegridintegrationpriority ,namely,hydropowerpriority,PVprior
ity ,andhydropowerpriorityinfloodseason, PV priorityinnon - floodseason.China’sLongyangxiaand
Zhongyuhydro !PVHGSsareselectedascasestudies.TheresultsshowthatPVwithhighergridintegrationprior
itycanbetterexertthesystemperformance.Thisfindingcouldprovidesupportfortheinformeddecision - making
fortheHGS.
Keywords:hydro !solarcomplementaryoperation;gridintegrationpriority;complementaryperformanceevalua
tion
(责任编辑:于福亮)
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