第47卷第2期电网技术Vol.47No.22023年2月PowerSystemTechnologyFeb.2023文章编号：1000-3673（2023）02-0539-14中图分类号：TM721文献标志码：A学科代码：470·40换流器型电网的理念与探索韩民晓1，范溢文1，刘金峻1，姚蜀军1，张莞悦1，孙天奎2（1．华北电力大学电气与电子工程学院，北京市昌平区102206；2．国网江苏省电力有限公司电力科学研究院，江苏省南京市211103）ConceptandPracticeofConverter-basedGridHANMinxiao1,FANYiwen1,LIUJinjun1,YAOShujun1,ZHANGWanyue1,SUNTiankui2(1.SchoolofElectricalandElectronicsEngineering,NorthChinaElectricPowerUniversity,ChangpingDistrict,Beijing102206,China;2.StateGridJiangsuElectricPowerResearchInstitute,Nanjing211103,JiangsuProvince,China)1ABSTRACT:Electricpowersystemwithrenewableenergyintheleadingroleisevolvingwithessentialchangeofgridmorphology.Electricpowerisintegratedtothegridthroughconverterswhichincreasetheproportionofpowerelectronicsinpowersystem.Converter-basedgrid(CBG)willbereachedwhenconverter-basedpowergenerationreplacessynchronousmachinetobuildthegridfrequencyandvoltage.Thispaperaimstodiscusstheconcept,constitutionandoperationofCBG.Firstly,thebasiccharacteristicsandcontrolstrategiesarediscussedfortheelementsofCBGsuchassource,load,energystorageandnetworkconfiguration.Then,thefrequencyandvoltageformationmechanismofsingleconverterandthecoordinatedcontrolmethodofmultipleconvertersareanalyzed.BasedonthetransientbehaviorofCBG,thefaultcharacteristicsandprotectionstrategiesarediscussed，andthestabilityproblemofCBGarebrieflyanalyzed.Combinedwithengineeringpractice,thefeasibilityofCBGisillustratedbycomparingtheapplicationinspecificgridscenarios.Finally,thekeytechnicalissuestobesolvedinCBGarepointedout,andthefuturedevelopmentprospectofpowergridisputforward.KEYWORDS:converter-basedgrid;frequencyandvoltagecontrol;grid-forming;faultcharacteristics;stability摘要：新型电力系统的发展将带来电网形态本质性的变化。电源通过换流器接入电网使电力电子设备的比例不断升高。当换流器型电源取代同步机型电源实现电网频率/电压构建时，则形成了换流器型电网(converter-basedgrid，CB...
