Page 48 - 2022年第53卷第5期
P. 48

Researchonoptimizationcalculationmethodofreservoir
                                        watersupplycapacityfordoublereliability

                                LINPengfei,YOUjinjun,JIANGYunzhong,JIALing,FUMin
                                  (StateKeyLaboratoryofSimulationandRegulationofWaterCycleinRiverBasin,
                                 ChinaInstituteofWaterResourcesandHydropowerResearch,Beijing 100038,China)

                  Abstract:Objectiveofreservoirswatersupplybecomesmorecomplex,coveringurbanwatersupply,agricultural
                  irrigationandecologicalflow,alongwithhigherurbanizationandhigherrecognitionofecologicalcivilization.Itis
                  necessarytoanalyzemulti - objectivewatersupplycapacityofreservoirforthedecision - makingoffunctionadjust
                  ment.Inthispaper,adouble - layeroptimizationcalculationmethodofreservoirwatersupplycapacityunder
                  doublereliabilityofwatersupplyisproposed,consideringthecompetitionanddifferentreliabilityrequirementsof
                  watersupplytargets.Themulti - objectivewatersupplycapacitycalculationisrealizedtomeetdifferentreliability
                  requirements ,throughregulationrulecontrolandurbanwatersupplycapacityintervaliteration.Intheouterlayer,
                  theoperationlineisoptimizedtomaximizetheurbanwatersupplycapacityandcoordinatedifferentusers’relations
                  basedonparticleswarmoptimizationalgorithm.Intheinnerlayer,theurbanwatersupplycapacitysatisfyingthe
                  requirementsofdoublereliabilityiscalculatedbyiterationundergivenrules.Thereservoirregulationruleandwater
                  supplycapacityaresimultaneouslyoptimizedthroughthenestedcalculationofinnerandouterlayers.Themethod
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                  ologywasappliedinChitianReservoirofSanyacity.Thetotalwatersupplycapacityis94millionm underopti
                  mizedregulationrule ,whenthereliabilityofurbanwatersupplyis95% andtheagricultureis90%.Differentsce
                  narioswithchangingagriculturalreliabilityandagriculturalwaterdemandwerecomparedandanalyzed.Theresults
                  suggestboththeagriculturaldemandanditsrequirementsofreliabilityimpacturbanwatersupplycapacity.When
                  reliabilityofagriculturalwatersupplydecreases ,thetotalwatersupplycapacityincreasesgradually.Theresearch
                  showsthatthedouble - layernestedoptimizationcalculationmethodisabletorealizetheoptimizationofoperation
                  line ,andtheresultofwatersupplycapacitycouldmeettherequirementsofurbanandagriculturalreliability.It’s
                  alsoverifiedthatthemethodpossessesattributesofreliableandstableconvergence ,andthemonthlydistributionof
                  optimizedregulationruleisfittingtheattributesofhydrographandprocessofagriculturalwaterdemand.Itcanbea
                  referenceforcalculationofmulti - objectivewatersupplycapacityofreservoirsandrelevantdecision - making.
                  Keywords:multi - objective;multiplereliabilityofwatersupply;watersupplycapacity;regulationrule;interval
                  iteration ;particleswarmalgorithm

                                                                                    (责任编辑:于福亮)
              (上接第 538页)
                   Effectsofsolarradiationandgroundtemperatureonwatertemperatureundericecover

                                 YANGKailin,GUOXinlei,WANGTao,FUHui,PANJiajia
                                  (StateKeyLaboratoryofSimulationandRegulationofWaterCycleinRiverBasin,
                                 ChinaInstituteofWaterResourcesandHydropowerResearch,Beijing100038,China)

                  Abstract:Solarradiationcanpenetratesnowsheetandicecover,togetherwiththegroundtemperature,affect
                  thechangeofwatertemperatureundertheice ,aggravatingthemeltinganderosiononthebottomoftheicecover,
                  andmakingtheicecovermorepronetocollapseandbreak - up.Basedontheexistingtheoryandprototypeobser
                  vationresearchresults ,mathematicalmodelsdescribingthetransmissionandabsorptionofsolarradiationinsnow
                  cover ,icecoverandwaterareestablished;usingthemethodofregressionanalysisofobservationdata,aparamet
                  ricmodelofextinctioncoefficientofsolarradiationvisiblelightinwaterisproposed ;then,thefunctionalrelation
                  shipbetweenthevariationofsubglacialwatertemperatureandsolarradiationandgroundtemperatureisstudied.
                  Theresultsshowthatthesubglacialwatertemperatureincreaseswiththeincreaseofsolarnetradiationandground
                  temperature,decreaseswiththeincreaseofsnowthicknessandicethickness,andisinverselyproportionaltothe
                  heatexchangecoefficientbetweenwaterbodyandicecover.Inaddition ,thetransmissionofsolarradiationmay
                  maketheroughnessoficecovernotdecrease ,butincrease.
                  Keywords:icecover;watertemperature;solarradiation;extinctioncoefficient;groundtemperature

                                                                                    (责任编辑:李福田)

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