光伏電站系統(tǒng)效率測試

TüVSüDAG Slide118-Dez-24PRtestofphotovoltaic(PV)

powerplant

TüVSüDTüVSüDCertificationandTesting(China)Co.,Ltd

18-Dez-24ABSTRACTTüVSüD Slide218-Dez-241BriefintroductionofPRinPVpowergeneratingsystem4BriefintroductionofTüVSüD2IntroductionofPRtest3CasesofPRtestinSoutheastAsiapowerplantsWhatisPR？PerformanceRatioTüVSüD Slide318-Dez-24Definition:Theratiooftheactualgenerationtothereference(theoretical)generation.QualityfactortopowerplantPreliminaryunderstandingofPRTüVSüDChina Slide418-Dez-24PR=Yf/YrYf——actualpowergeneration，Yr——theoreticalpowergeneration（calculated）theindexofPRbasedonthedesigningofthepowerplant,ownperformanceofPVplant,seasonoftesting,temperature,weatherandotherfactorsApplicationofPRtestTüVSüD Slide518-Dez-24Postevaluationofsystemperformanceofpowerplant.UsedtoevaluatewhetherthepowergenerationperformancemeetstheEPCcommitmentvalueorthedesignexpectation,whenacceptingandtransferringormergingtheplant.(Optional:shortperiodofPRtest,7days）Financialforecastandeconomicanalysis.TrackingthePRindexofthepowerplantandpredictthefuturepowergeneration.（Optional:shortperiodofPRtest）Assessmentindexofpowerplantoperationandmaintenance.PRcanbeusedasalong-termindextoassesstheoperationandmaintenancequalitywhenthePVequipmentoperatesreliably.（Optional:1naturalyearofPR）Problemdiagnosis.PRcanbeusedtoidentifythechangeofpowergenerationperformanceandaccuratelyjudgeandanalyzetheperformanceofsingleinverterarray.（Optional:shortperiodofPRtest,performanceofeachinverterarraybeenanalyzedandcalculatedforjudgewhetheritisuptothestandard.Bythismethod,thepoorperformanceareacanbequicklyfound.）AbstractTüVSüD Slide618-Dez-241BriefintroductionofPRinPVpowergeneratingsystem4BriefintroductionofTüVSüD2IntroductionofPRtest3CasesofPRtestinSoutheastAsiapowerplants2-1.ThestandardofPRtest:

IEC61724TüVSüD Slide718-Dez-24IEC61724-1Definestheperformancedatathatmaybecollected,butdoesnotdefinehowtoanalyzethatdataincomparisontopredictedperformance.IECTS61724-2DesignedtocompleteanevaluationinashorttimeasacomplementtoIECTS61724-2.IECTS61724-3Describesaone-yeartestthatevaluatesperformanceoverthefullrangeofoperatingconditionsandisthepreferredmethodforevaluatingsystemperformance.IECTS61724-4Outlinesastep-by-stepprocedureforcalculatingdegradationratesfromcontinuousPVperformancedata.2-2.IEC61724-1PVsystemmonitoring

TüVSüD Slide818-Dez-24IEC61724-1summarizedtherelatedtermsoftestequipment,testmethod,performancemonitoringandanalysisIEC61724-1SensorsInstallationAccuracyAcquisitionDatacheckPerformancemetrics2-3.ClassificationofPRtestmonitoringequipmentTüVSüD Slide918-Dez-24MonitoringSystemClassificationAccordingtodifferentapplicationscope,dividedintoABClevels.ApplicationofclassificationandsuggestionsofmonitoringsystemTypicalApplicationA

High-accuracyB

Medium-accuracyC

Basic-accuracyBasicperformanceevaluation×××Writtenperformanceguarantee××

Systemlossanalysis××

Gridinteractionassessment×

Faultlocation×

PVtechnicalanalysis×

AccuratedegradationcalculatingofPVsystem×

2-4.RequirementsofPRtestequipment-IrradiationsensorTüVSüD Slide1018-Dez-242-4.

Quantityrequirements

ofPRtestequipment（Forpowerplantsofdifferentcapacitylevels）TüVSüD Slide1118-Dez-24irradiation temperature2-4.RequirementsofPRtestequipment-irradiationsensorinstallmentTüVSüD Slide1218-Dez-24OrientationFixthebracket,keeptheinclinationconsistentwiththecomponentForthePVtrackingsupportsystem,installonthereliabletrackingsystemSensorsThermopilepyranometers;0~1500W/m?2andaresolutionof≤1W/m?2LocationAvoidocclusionAvoidreflectinglightAvoiddustcoverAvoidcondensationandfrosting2-4.RequirementsofPRtestequipment-ComponenttemperatureTüVSüD Slide1318-Dez-24PasteonthebackofthecomponentRearsurfaceofthemodule,atthecenterofacellclosetothecenterofthemoduleAdhesiveandtapeTemperaturesensorFlatprobes/Thin-filmthermocouplesoftypesTorEThemeasurementuncertainty≤2°C.2-4.RequirementsofPRtestequipment-ComponenttemperatureinstallationandmaintenanceTüVSüD Slide1418-Dez-24LocationAvoidheatsinkPlacedinrepresentativelocations(Multiple)Timelymaintenance2-4.RequirementsofPRtestequipment-PowergenerationacquisitionequipmentTüVSüD Slide1518-Dez-24Forpowergenerationofsingleinverter,useonepowermeterongridofthewholeplant2-4.Otherrequirementequipment-Airtemperature/windspeedsensorTüVSüD Slide1618-Dez-24AirtemperatureMeasurementresolution≤0,1°Candmaximumuncertainty±1°C.AvoidthermalsourcesorsinksWindspeedanddirectionatsuitableheightandlocationSpeedmeasurementuncertaintyshallbe≤0,5m?s?1forwindspeeds≤5m?s?1,and≤10%ofthereadingforwindspeedsgreaterthan5m?s?1.Directionmeasuredwithanaccuracyof5°.2-5.RequirementsofPRtestequipment-SamplingintervalandtimesynchronizationTüVSüD Slide1718-Dez-24Synchronization2-6.DataprocessingandverificationTüVSüD Slide1818-Dez-24RejectinvaliddataUsingstatisticalmethod,accordingtotheparameterboundaryconditions,identifythewrongandmissingdata,deleteredundantdataanddeadvalue,confirmthedataofthecollectorisaccurateandavailable.FillinthemissingdataReplacethemissingdatawiththemethodsofadjacentreplacement,averagereplacement,etc.Commondatacollector2-7.CalculationformulaofPRTüVSüD Slide1918-Dez-24Calculatedfromformulasbelow：Includeallsystemlosses.Losscausedbycomponentheating,lossofpowergenerationefficiencyofequipment,losscausedbyequipmentfailureandshutdown,lineloss,etc.2-7.STCperformanceratioPRSTCTüVSüD Slide2018-Dez-24STCperformanceratio（PRSTC）ThePRSTCcaneliminatetheeffectoftemperatureonPRandsignificantlyreducetheseasonaleffect.ButcannotreflectthepoweroutputperformanceofPVsystemintherealoutdoorenvironment.Application:generally,thismethodcanbeusedforcomparisonofPR(needtoeliminatetheinfluenceoftemperature)indifferentmonthsandseasonsinsamepowerplantorsameinverterarraies.2-7.STCperformanceratio

PRannual-eqTüVSüD Slide2118-Dez-24AnnualequivalenttemperaturePRannual-eq（Refertotheannualaveragetemperatureofthecomponent）Cannoteliminatetheinfluenceoftemperature,theannualaveragetemperaturewillstillaffectthepoweroutputofcomponents.Theannualaveragetemperatureofcomponentsisempiricalpredictedormeasuredinthelocalpowerplant.(fornewpowerplants,theweightaveragetemperatureofcomponentisgenerallyobtainedbysimulationinPvsyst

Software.)2-8.PRcurveofPRtemperaturecompensationTüVSüD Slide2218-Dez-24AbstractTüVSüD Slide2318-Dez-241BriefintroductionofPRinPVpowergeneratingsystem2IntroductionofPRtest3CasesofPRtestinSoutheastAsiapowerplants4BriefintroductionofTüVSüDPRtestbackgroundof500MWpowerplantinSoutheastAsiaTüVSüD Slide2418-Dez-24ThelargestsinglepowerplantinSoutheastAsiaatpresent.Powerplanthandover:Powergenerationperformanceevaluation.(stagetest:200+150+40+20MW).ConfirmwhetherthePRofthepowerplantmeetstherequirementsofEPCcommitmentvalue.Testmethod：Powergeneratingcapacityevaluationmethod(PR

shortperiodtest)10days(IEC61724standard）500MWPRtestof500MWpowerplantinSoutheastAsia-EquipmentinstallmentTüVSüD Slide2518-Dez-24200MWACItems：Irridiationsensor×5Temperature×30PRtestof500MWpowerplantinSoutheastAsia-TestresultTüVSüD Slide2618-Dez-24PRvalueishigherthanthecommitmentrequirements.Thepowerplantmeetsthestandards.TüVSüDPRtestmeetsthestrictrequirementsofSoutheastAsiapowerplantownerfortesting.PRtestofotherpowerplantinSoutheastAsiaTüVSüD Slide2718-Dez-24LowerGòD?uphaseone50MWpowerplant

-PRtestLowerGòD?uphasetwo50MWpowerplant

-PRtestPRtestofotherpowerplantinSoutheastAsiaTüVSüD Slide2818-Dez-24PhuYen275MWpowerplant

-PRtestAbstractTüVSüDAG Slide2918-Dez-244BriefintroductionofTüVSüD1BriefintroductionofPRinPVpowergeneratingsystem2IntroductionofPRtest3CasesofPRtestinSoutheastAsiapowerplantsOurglorioushistoryin

153yearsTüVSüD Slide3018-Dez-241866On6January,22industrialistsunitedtoestablishtheSteamBoilerInspectionAssociationBadeninMannheim.1881Thefirstbindingstandardsrelatedtoboilersafetywereagreed,pavingthewayforuniformtechnicalinspections.1906Ourfirstvehicleperiodictechnicalinspectionwascarriedout.1951TüVorganisationsweretaskedwithperformingregularinspectionsofallmotorisedvehicles.1989TüVProductServiceGmbHwaslaunched,pioneeringtheconceptofworldwideapprovals.1996TheTüVsfromGermany’ssouthernstatesunitedtoformTüVSüD.2001TheTüVSüDoctagoncertificationmarkbecametheofficialcompanylogo.TodayTüVSüDcontinuestopursueastrategyofinternationalisationandgrowth.TüVSüDTüVSüDisgrowingTüVSüD Slide3118-Dez-241One-stoptechnicalsolutionprovider1,000locationsworldwide

employeesworldwideasofendof2018

24,500millionEuroinsalesrevenuefor20182,500153yearsofexperienceFootprintofTüVSüD

PVplantTüVSüD Slide3218-Dez-24ComponentQCTDDFullprocessQC>40GWinstalledcapacityglobalTüVSüDPVplantserviceinChinaTüVSüD Slide3318-Dez-242019>40GWinstalledcapacity2017>15GW

installedcapacity2016>8GW

installed