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1、AHybridMicrogridSystemIncludingRenewablePowerGenerationsandEnergyStoragesforSupplyingboththeDCandACLoadsGuohongWu,ShunnosukeKodama,YoshiyukiOno,YusukeMonmaDept.ofElectricalEngineeringandInformationTechnologyTohokuGakuinUniversitySendai,Japanwugh@tjcc.tohoku-gakuin.ac.jpAbstract-Thispaperpre
2、sentsanexperimentalstudywithaandwindpowergenerationwithuncertaintiesundernaturalhybridmicrogridsystem,whichisproposedandimplementedinconditionscannotsupplystablepoweroutputtosatisfythetheTagajocampusofTohokuGakuinUniversity,Japan.Therequirementsofpowerdemandexactly,andthisisespeciallyadevel
3、opedmicrogridconsistsofrenewablepowergenerationsofcriticalissueforamicrogridwithsmallcapacityinisolatedPVandwindpowergenerator,twotypesofenergystoragedevicesofsecondarybatteryandEDLC(ElectricalDouble-layeroperation.Therefore,somestabledistributedpowersourcesCapacitor),togetherwithprogrammab
4、leDCloadandACloadsuchasdieselgeneratorsandelectricpowerstoragesaremodels.Thepurposeofthisexperimentalstudyistoverifynormallynecessarytoobtainpowersupply-demandbalanceinwhetherthishybridmicrogridsystemcanstablysupplypowertoanisolatedmicrogrid.DCandACloadssimultaneouslyincasewithconsiderablep
5、owerOntheotherhand,mostofthedistributedresourcessuchfluctuationfromrenewablegenerationsinitsislandedoperation.asPV,FC,etc.togetherwiththeenergystoragedevicesareAndtheresultsobtainedfromthisexperimentalstudyhaveillustratedthatthemicrogridanditscontrolsystemcanoperateDC-based.And,onaccountofs
6、ystemoperationstabilityperfectlyasbeingdesigned.problem,evensomeoftheACgeneratorsarenotallowedtointegrateintotheACpowergriddirectlyandrequiredanKeywords-microgrid;renwablepowergeneration;energystorage;inverter-basedinterfaceforgridconnection.ThesedistributedDCload;ACload;islandedoperation;p
7、owerfluctuationgenerationsmayincludethesmallwindturbinegenerator,microorsmallhydraulicpowergenerator,etc.Thus,intheI.INTRODUCTIONpresentapplications,theACpowergeneratedbytheseTherenewablepowergenerationshavebeenpaidgreatgeneratorsisnormallytransferredint
