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Analyticaloptimizationandsensitivityanalysisofinstalledcapacityconfigurationof
hydro - wind - photovoltaiccomplementarysystems
1
2
2
2
1,3
1
CHENXiangding,LIUPan,WUDi,MALi,GONGLanqiang,HUANGKangdi
(1.StateKeyLaboratoryofWaterResourcesandHydropowerEngineeringScience,Wuhan 430072,China;
2.PowerChinaGuiyangSurveyandDesignResearchInstituteCo.,Ltd.,Guiyang 550081,China;
3.ScienceandTechnologyResearchInstitute,ChinaThreeGorgesCorporation,Beijing 100038,China)
Abstract:Theoptimalallocationofinstalledhydro - wind - photovoltaiccapacityisimportantforimprovingenergy
useefficiency.However ,itisdifficulttoportraythequantitativerelationshipbetweenthenetbenefitsofcomple
mentarysystems,installedcapacityandeconomictechnicalparameterssuchaselectricitypriceandcostsbythe
traditionalnumericalsimulationmethodthataimsatmaximizingthenetsystem benefits.Tothisend ,thispaper
proposesananalyticaloptimizationmethodfortheinstalledcapacityconfiguration.First ,constructthewind - photo
voltaiccurtailmentratefunctiontoaccuratelysimulatelong - term windandPVcurtailedpower ,thentheoptimal
installedcapacityfunctionisanalyzedbasedonthecost - benefitmodelandtestedbynumericalsimulationmethod ,
finally,Taylorexpansionoftheoptimalinstalledcapacityfunctionisperformedtoassessthesensitivityoftheopti
malinstalledcapacityandthenetbenefitofthecomplementarysystemtoeacheconomictechnicalparameterinthe
capacityconfiguration.TakingtheYalongRiverBasinErtanhydro - wind - photovoltaiccomplementaryprojectasan
example,theresultsshowthattheproposedanalyticaloptimizationmethodhasbeentestedtoaccuratelyconfigure
theinstalledcapacity,themostsensitiveparameteroftheoptimalinstalledcapacityandthenetbenefitisthefeed -
intariffandtheleastsensitiveparameteristheoperationandmaintenancecost ,andthesensitivityofthefeed - in
tarifftothenetbenefitis4.44timesoftheoperationandmaintenancecost.Thestudycanprovidetechnicalsupport
fortheplanninganddesigningofwatershedhydro - wind - photovoltaiccomplementarypowerplants.
Keywords:hydro - wind - photovoltaiccomplementary;analyticaloptimization;optimalinstalledcapacityfunction;
economictechnicalparameter;sensitivityanalysis
(责任编辑:于福亮)
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