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    • An improved control method of battery energy storage system for hourly dispatch of photovoltaic power sources

    一种改进的电池储能系统逐时调度控制方法

    0 约15页 pdf
    出版日期： 2013
    标签： Photovoltaic Renewable energy hourly dispatch Battery energy storage SOC feedback control Parameter optimization

    出版日期:2013

    作者单位:DepartmentofElectrical,ElectronicandSystemsEngineering,UniversitiKebangsaanMalaysia,43600Bangi,Selangor,Malaysia
    杂志名称:Energy Conversion and Management
    卷号:73
    期数:Complete
    刊号:0196-8904
    出版日期:2013

    简介:Theeffectsofintermittentcloudandchangesintemperaturecausearandomlyfluctuatedoutputofaphotovoltaic(PV)system.TomitigatethePVsystemimpactsparticularlyonaweakelectricitynetwork,batteryenergystorage(BES)systemisaneffectivemeanstosmoothoutthepowerfluctuations.Consequently,thenetpowerinjectedtotheelectricitygridbyPVandBES(PV/BES)systemscanbedispatchedsmoothlysuchasonanhourlybasis.Thispaperpresentsanimprovedcontrolstrategyforagrid-connectedhybridPV/BESsystemsformitigatingPVfarmoutputpowerfluctuations.AfeedbackcontrollerforBESstateofchargeisproposed,wherethecontrolparametersareoptimizedusinggeneticalgorithm(GA).GA-basedmultiobjectiveoptimizationutilizesthedailyaveragePVfarmoutputpowerprofilewhichwasobtainedfromsimulationusingthehistoricalPVsysteminputdataofMalaysia.Inthisway,theoptimalsizefortheBESisalsodeterminedtohourlydispatcha1.2 MWPVfarm.AcasestudyforMalaysiaiscarriedouttoevaluatetheeffectivenessoftheproposedcontrolschemeusingPSCAD/EMTDCsoftwarepackage.Furthermore,thevalidationofresultsoftheproposedcontrollerandBESsizeontheactualPVsystemoutputdataarealsogiven.Finally,asimplepaybackcalculationispresentedtostudytheeconomicalaspectsoftheBESinvestmentontheproposedmitigationstrategyunderMalaysianFeed-inTariffprogram.

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