The Evaluation Model

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1、OfimportancewhenO&MEvaluationModeldeterminingtheofcertainpriority,generatorlossmodels,gear-boxlossesmodels,andhighpowerDatabaseLossmodels*DC/DC-converterslossmodels.PowerSystemperformanceWindmodelconfigurationmodelInvestmentcostsEnergyEnergyProductionpro

2、ductionCostsenerThemajorfocusofthetaskwillbeontheLossModel,,whichcanbebrokendownintoseveralworkingprocessandtypeofmaintenance:MaintenancePreventiveCorrectiveCalendarConditionPlannedUnplannedbasedbasedThetimetorepair(TTR)canbesplitintofourtimeinterval,Rep

3、airProcessas:TimeFailuretowindturbineEventsAlarmsenttocentraloperation&responsibleengineerisinformedaboutdamage;T_Logiticsequipment,crewandsparepartsarearrangedRepairequipment,crew&sparepartsreadyfortake-offT_WaitDuetobadweatherconditionstherepairteamcan

4、notdepartWeatherconditionsuitablefortake-offT_TravelRepairteamtravelstodamagedWTsRepaircrewarrivesatWT,TimetoRepair(TTR)T_RepairrepairstartedRepairiscarriedoutRepaircompletedT_TravelT_MissionThecostcalculationwillinvolvethefollowing:Weatherwindowsandwai

5、tingtimeWindturbineandwindfarminformation,capacityfactorofwindfarm,costsoflaborFailurebehaviouroftheturbinesandrepairactionswhichareforeseenCharacteristicsvaluesofaccesssystem(mobilisationtime,weatherlimits,costs)Preventivemaintenancecostsandlongterm

6、fixedcostslikeannualcontractsThenwewillsub-divideMaintenanceintodifferentmaintenancecategoriesMC1:Remotereset,nopersonnelandequipment,norepairtimeMC2:Smallrepairinside,onlypersonnelandtools,repairtime<1dayMC3:Smallrepairoutside,onlypersonnel&tools,time<1

7、dayMC4:Replacementofsmallparts,repairtime=1day(e.g.pitchmotor)MC5:Replacementoflargeparts(shaft,generator,time=1to2daysMC6:replacementoflargeparts,externalcrane(yawsystem)time=2to3dE.g;BreakdownDescriptionofMC4Smallersparepartslikeapitchmotor,ayawmotoror

8、partsofhydraulicsystemneedtobetransportedtotheWT,putontheplatformandhoistedintothenacelle,typicalonewillbeasfollows1.2to4techniciansandspareparttravelstothefailedWT.2.Technicianinspectfailedcomponentanddecidewhethertherepl