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1、第38卷第9期电网技术Vol.38No.92014年9月PowerSystemTechnologySep.2014文章编号:1000-3673(2014)09-2363-08中图分类号:TM721文献标志码:A学科代码:470·4051分布式多变流器型微电网无互联线潮流控制1a21a21b唐芬,吴丹,周啸,GuerreroJosepM.,贾利民(1.北京交通大学a.国家能源主动配电网技术研发中心,b.轨道交通安全与控制国家重点实验室,北京市海淀区100044;2.丹麦奥尔堡大学能源技术系,丹麦奥尔堡9220)WirelessAutonomousPower
2、FlowControlinConverter-FedMicrogrids1a21a21bTANGFen,WUDan,ZHOUXiao,GUERREROJosepM.,JIALimin(1.a.NationalActiveDistributionNetworkTechnologyResearchCenter,b.StateKeyLaboratoryofRailTrafficControlandSafety,BeijingJiaotongUniversity,HaidianDistrict,Beijing100044,China;2.Departmentof
3、EnergyTechnology,AalborgUniversity,Aalborg9220,Denmark)ABSTRACT:Whentotalapparentpoweroftheenergystorage关键词:微电网;自治功率分配;虚拟阻抗;协调控制system(ESS)interfacingconverterisfixed,thehighertheDOI:10.13335/j.1000-3673.pst.2014.09.008requirementonreactivepowerinthemicrogridsystemwith0引言distribu
4、tedmultipleconverters,theweakertheabilityofESStobalancetheactivepowerbetweendistributedgeneratorsand近几年,微电网概念备受关注,被视为利用分loadsis.ToreducethislimitationonESS,awirelesspower[1-3][4]布式能源的最佳途径。根据标准IEEE1547.4,flowcontrolmethod,whichautonomouslyutilizesallpotential微电网从概念上讲,一般是指由分布式资源dis
5、tributedreactivecompensationsourcestosupplyreactivepowerneededbyloadstomitigatethepressureofreactive(distributedresource,DR)和本地负荷组成的电气上poweradjustment,isproposed.Droopcontrolandreversed互联、控制上协调运行,具有自我控制、保护和管droopcontrolareintegratedtoimplementrationalpower理的小型发配电系统。DR一般包括分布式发电all
6、ocationamongvoltagecontrolledmodeandcurrent(distributedgenerator,DG)和分布式储能(distributedcontrolledmodeconverters.Meanwhile,thefactorsimpactingstorage,DS),或者两者的组合。根据DR系统接入theaccuracyofreactivepowerallocationareanalyzed,andamethodbasedonthecombinationofvirtualimpedancewith微电网的方式,其可分为
7、旋转电机接口和变流器接adaptiveno-loadvoltagecompensationisproposedtoimprove口2种形式[5-6]。其中接口变流器常采用电压源变流theaccuracyofreactivepowerallocation.Finally,realtime器(voltagesourceconverter,VSC),其控制策略常hardware-in-the-loopresultsarepresentedtoshowthe可分为电压控制模式(voltagecontrolledmode,VCM)feasibilityofprop
8、osedcontrolstrategy.[7-9]和电流控制模式(current