Page 46 - 2023年第54卷第11期
P. 46

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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