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1、第40卷第7期电网技术Vol.40No.72016年7月PowerSystemTechnologyJul.2016文章编号:1000-3673(2016)07-2113-07中图分类号:TM72文献标志码:A学科代码:470·40应用改进序分量法的主动配电网不平衡潮流计算1122董雷,郭新志,陈乃仕,蒲天骄(1.华北电力大学电气与电子工程学院,北京市昌平区102206;2.中国电力科学研究院,北京市海淀区100192)CalculationofUnbalancedPowerFlowinActiveDistributionNetworksBasedonImpr
2、ovedSequenceComponents1122DONGLei,GUOXinzhi,CHENNaishi,PUTianjiao(1.SchoolofElectricalandElectronicEngineering,NorthChinaElectricPowerUniversity,ChangpingDistrict,Beijing102206,China;2.ChinaElectricPowerResearchInstitute,HaidianDistrict,Beijing100192,China)ABSTRACT:Inordertomeetthe
3、requirementsoffast分布式电源(distributedgeneration,DG),分别建立PQ、PVsimulationinactivedistributionnetworks(ADN).Aimproved不同类型节点的序分量模型;针对非全相线路,提出基于虚sequencecomponentsmethodisproposedthatcanbe拟线路法的一体化序分量建模方法,简化了对非全相线路的efficientlyappliedtoparallelcomputingofthree-phase处理;针对不平衡负荷,计及了其在实际配网中类型和接
4、线unbalancedpowerflowinADN.Firstly,thepaperbuilds方式,推导其序分量模型,提高了计算的精确性。然后将不sequencecomponentsmodelsofADNcomponentsbasedon平衡配网分解为无耦合关系的正、负、零3个序分量网络和compensationmethod:Avarietyofdistributedgeneration(DG)补偿注入元,3个序网络采用并行计算,从而降低了计算规sequencecomponentsareestablishedthatcancopewith模,节省了存储空间
5、,大大提高了计算速度。最后通过算例differenttypesofnodesasPQorPV.Andaddsvirtuallineto验证该算法的准确性和快速性。simplifysequencecomponentsoftheopenphase,itcanbuild关键词:主动配电网;三相潮流;并行计算;序分量;虚拟unifiedsequencecomponentsmodelsforentiredistribution线路networkslines.ToaccuratecalculationpowerflowinDOI:10.13335/j.1000-3673
6、.pst.2016.07.027distributionnetworks,thepaperbuildssequencecomponentsmodelsofdifferentconnectionloads.Secondly,unbalanced0引言distributionnetworksisdecomposedintothreesequence为应对间歇性分布式电源(distributednetworksandcompensationparts.Parallelcomputingcanbeusedforthreedecouplednetworks,itred
7、ucesthegeneration,DG)的大量接入,具有主动控制与主动computationalscale,savesstoragespace,andgreatlyimproves管理能力的主动配电网(activedistributionnetwork,thecomputingspeed.Finally,thesimulationresultsoftestADN)的概念应运而生,并成为未来智能配电网的examplesareprovidedtodemonstratethecorrectnessand[1-2]主要发展方向。ADN的研究和实践涉及众多技effe
8、ctivenessoftheproposedmeth