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1、JournalofWaterResourcesResearch水资源研究,2017,6(2),112-124PublishedOnlineApril2017inHans.http://www.hanspub.org/journal/jwrrhttps://doi.org/10.12677/jwrr.2017.62015Multi-ObjectiveReservoirOperationunderDifferentEcologicalProcessesYanpingHa1,TaoBai1*,FuqiangQu2,YongWu3,YongxiaoLiu31StateKeyLabCultivation
2、BaseofNorthwestAridEcologyandHydraulicEngineering,Xi’anUniversityofTechnology,Xi’anShaanxi2StateGridAnkangHydroelectricPowerCompany,AnkangShaanxi3ConstructionofEnvironmentalProtectionBureauofShaanxiProvinceXixinDistrictFengxiNewCityAdministrativeCommittee,XianyangShaanxithththReceived:Mar.24,2017;ac
3、cepted:Apr.11,2017;published:Apr.14,2017AbstractEcologicalproblems,suchaspoorwaterquality,lackofself-purificationabilityanddifficultiesinensuringtheecologicalflow,havebeenappearedfrequentlyinHanjiangRiverBasin.Ankangreservoir,withthelargestca-pacityintheupperreachesofHanjiangRiver,waschosenasthecase
4、studyinthispaper.Differentecologicalflowprocesseswereobtainedaccordingtotheriverbaseflow,self-purification,sedimentationbalanceandthebiologicalgrowth,andwereconsideredastheecologicaltargetofreservoiroperation.Singleobjectivemodelsmaximizedpowergenerationandminimizedecologicalwatershortageandamulti-o
5、bjectivemodelconsideringthetwoobjectiveswereestablishedandsolvedbyGeneticalgorithms(GA)andnon-dominatedsortinggeneticalgorithm(NSGA-II),respectively.Itisshownthat:1)Comparedwiththeoperationmodelmaximizedpowergeneration,themodelminimizedecologicalwatershortagereducedpowergenerationby1%andincreasedeco
6、logicalguaranteerateby5%,bywhichthepresentecologicalrequirementscanbesatisfiedundersacrificedlesspowergenerationaftertakingaccountintoecologicaltarget;2)Resultsofthesingle-objectivemodelfallonthemulti-objectiveParetocurve,andthesegmentationcharacteristicsofthecurvedemonstratetheaccuracyandreliabilit
7、yofthesingleandmulti-objectiveresults;3)TheimpactofecologicalrunoffgenerationonpowergenerationwasevaluatedbyLoss-benefitratioofecologyandpowergenerationk,and200%ecologicalrunoffprocesswasrecommendedas
