Page 69 - 2022年第53卷第9期
P. 69

Benefit - stabilitymulti - objectiveoptimaloperationof
                                          wind - solar - hydropowerhybridsystem

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                                ZHANGZhendong ,TANGHaihua ,QINHui,LUOBin ,
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                                              ZHOUChao ,HUANGLiyao
                              (1.ChangjiangSurvey,Planning,DesignandResearchCo.,Ltd,Wuhan 430010,China;
                     2.Internet +SmartWaterConservancyKeyLaboratory,ChangjiangWaterResourcesCommittee,Wuhan 430010,China;
                      3.SchoolofCivilandHydraulicEngineering,HuazhongUniversityofScienceandTechnology,Wuhan 430074,China)
                  Abstract:Thejointoperationofthewind - solar - hydropowerhybridsystemisoneoftheeffectivemethodstosolve
                  theintermittentenergyconsumptionsuchaswindpowerandphotovoltaics.However ,thepowergenerationbenefit
                  andstabilityofthecomplementarysystemarecontradictory.Howtoanalyzetheoutputcomplementaritycharacteris
                  ticsofthesystemandanalyzethebenefit - stabilityrelationshipisthekeyscientificproblemtobesolvedinthisstudy.
                  Thewind - solar - hydropower(WSH)complementarydemonstrationbaseintheYalongRiverBasinistakenasthe
                  researchobject.Thebenefit - stabilitymulti - objectiveoptimaloperationmodelisconstructedbytakingthe
                  maximumtotalpowergenerationofthecomplementarysystem andtheminimum variationcoefficientoftheoutput
                  processasthegoal.Then ,usingrunoff,windspeedandsolarradiationintensityasinputs,thecomplementary
                  characteristicsofsystem outputandthedifferenceofschedulingschemeareanalyzed.Theresearchresultsshow
                  thattherelationshipbetweenbenefitandstabilityobjectiveisthatthegreaterthetotalpowergeneration ,thegreater
                  thecoefficientofvariation ,andtheworsethestabilityoftheoutputprocess.Thecomplementaryrelationshipof
                  WSHhybridsystemontheintradaytimescaleisthatfromnighttodaytonight,thephotovoltaicoutputgradually
                  increasesfromzeroandthenbecomeszero ,andthewindpoweroutputincreasesfromlargetosmallandthenlarge.
                  Thereisanintradaycomplementaryrelationship ,andhydropowerenergycaneffectivelycomplementandstabilize
                  windpowerandphotovoltaicoutputdependingontheadjustmentcapacity.
                  Keywords:wind - solar - hydropowerhybridsystem;multi - objective;optimaloperation;benefit - stability

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