Article(id=1190325325650297442, tenantId=1146029695717560320, journalId=1189987059142926344, issueId=1190325324991791712, articleNumber=null, orderNo=null, doi=10.19457/j.1001-2095.dqcd25126, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1683648000000, receivedDateStr=2023-05-10, revisedDate=1690992000000, revisedDateStr=2023-08-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1761725272809, onlineDateStr=2025-10-29, pubDate=1739980800000, pubDateStr=2025-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761725272809, onlineIssueDateStr=2025-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761725272809, creator=13701087609, updateTime=1761725272809, updator=13701087609, issue=Issue{id=1190325324991791712, tenantId=1146029695717560320, journalId=1189987059142926344, year='2025', volume='55', issue='2', pageStart='3', pageEnd='96', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761725272653, creator=13701087609, updateTime=1761725272653, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=77, endPage=81, ext={EN=ArticleExt(id=1190325325826458215, articleId=1190325325650297442, tenantId=1146029695717560320, journalId=1189987059142926344, language=EN, title=Analysis of a Fault Current Limiting Scheme for VSC DC Side Fault, columnId=null, journalTitle=Electric Drive, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In DC power grid,when serious metallic short circuit fault occurs in the DC side line of voltage source converter (VSC),the fault current has the characteristics of a fast rising speed and a large peak. The DC circuit breaker is used to isolate the fault,which greatly increases the requirements for the quick action and breaking capacity of the DC circuit breaker. Based on the VSC bipolar short circuit fault characteristics,a fault current limiting scheme with residual current operated protective device(RCD)current peak suppression circuit in series with the DC line was proposed. The current limiting circuit,which controlled the opening and closing of the thyristor,not only interrupted the discharge loop of the DC side capacitor to the fault point,but also effectively reduced the peak fault current and limited the fault steady state current to a given reference value.The PSCAD/EMTDC simulation platform was used to test the VSC bipolar short circuit fault and the proposed current limiting scheme,and the effectiveness of the proposed scheme was compared with that of the other two fault current limiting schemes,which verified the superiority of the proposed scheme based on energy transfer circuit.
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直流配电网中,电压源型换流器(VSC)直流侧线路发生严重金属性短路故障时,故障电流具有上升速度快、峰值大的特点,搭配直流断路器隔离故障时,大大增加了对直流断路器速动性和开断能力的要求。基于VSC双极短路故障特征,提出了在直流线路中串入剩余电流动作保护器(RCD)电流峰值抑制电路的故障限流方案,该限流电路通过控制晶闸管的开断不仅可以截断直流侧电容向故障点的放电回路,还可以有效降低故障电流峰值,并能限制故障稳态电流为给定参考值。利用PSCAD/EMTDC仿真平台对VSC双极短路故障及所提限流方案进行仿真测试,并与其他两种故障限流方案的效果进行比较,验证了所提基于RCD电流峰值抑制电路这一故障限流方案的优越性。
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10(3):53-57,6., articleTitle=Review of DC distribution network protection technology, refAbstract=null)], funds=[Fund(id=1190325632291668796, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, awardId=52107098, language=CN, fundingSource=国家自然科学基金(52107098), fundOrder=null, country=null), Fund(id=1190325632400720702, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, awardId=YKJ201965, language=CN, fundingSource=南京工程学院引进人才科研启动基金(YKJ201965), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1190325627719877356, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, xref=null, ext=[AuthorCompanyExt(id=1190325627728265965, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, companyId=1190325627719877356, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167,Jiangsu,China), AuthorCompanyExt(id=1190325627736654574, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, companyId=1190325627719877356, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=南京工程学院 电力工程学院,江苏 南京 211167)])], figs=[ArticleFig(id=1190325629745726236, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Fig.1, caption=
Two-level VSC circuit structure and fault current path, figureFileSmall=uAuxo5VX4sJORguQJw2Eww==, figureFileBig=M4mVagGDFKD2KR0mw6RHKg==, tableContent=null), ArticleFig(id=1190325629821223709, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=图1, caption=
两电平VSC电路结构及故障电流通路, figureFileSmall=uAuxo5VX4sJORguQJw2Eww==, figureFileBig=M4mVagGDFKD2KR0mw6RHKg==, tableContent=null), ArticleFig(id=1190325630089659169, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Fig.2, caption=
Waveforms of current and voltage in the DC side of VSC, figureFileSmall=3Zb8/hItz7AMKiMY9wu8vw==, figureFileBig=QqrDicLsY/K2dhLuf54TDQ==, tableContent=null), ArticleFig(id=1190325630177739555, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=图2, caption=
VSC直流侧电流电压变化曲线, figureFileSmall=3Zb8/hItz7AMKiMY9wu8vw==, figureFileBig=QqrDicLsY/K2dhLuf54TDQ==, tableContent=null), ArticleFig(id=1190325630278402853, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Fig.3, caption=
Fault current limiting scheme based on RCD current peak suppression circuit, figureFileSmall=7ycTVU92u9m5gitJG7jmZw==, figureFileBig=NMPbqFJqNnOwxotCL30TnA==, tableContent=null), ArticleFig(id=1190325630488118054, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=图3, caption=
基于RCD电流峰值抑制电路的故障限流方案, figureFileSmall=7ycTVU92u9m5gitJG7jmZw==, figureFileBig=NMPbqFJqNnOwxotCL30TnA==, tableContent=null), ArticleFig(id=1190325631515722536, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Fig.4, caption=
Control block diagram of the fault current limiting circuit, figureFileSmall=KOA5Hcsc1IePdeJEgKMrrQ==, figureFileBig=aRAR+pj1cqgjz9+sODReow==, tableContent=null), ArticleFig(id=1190325631570248490, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=图4, caption=
故障限流电流的控制框图, figureFileSmall=KOA5Hcsc1IePdeJEgKMrrQ==, figureFileBig=aRAR+pj1cqgjz9+sODReow==, tableContent=null), ArticleFig(id=1190325631649940268, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Fig.5, caption=
Current and voltage waveforms using a fault current limit scheme based on RCD current peak suppression circuit, figureFileSmall=eWJdzqNpUqMnh1MwebUngQ==, figureFileBig=mN8utfZSejUw9AzygK+wXA==, tableContent=null), ArticleFig(id=1190325631721243438, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=图5, caption=
采用基于RCD电流峰值抑制电路的故障限流方案时的电流电压波形, figureFileSmall=eWJdzqNpUqMnh1MwebUngQ==, figureFileBig=mN8utfZSejUw9AzygK+wXA==, tableContent=null), ArticleFig(id=1190325631813518128, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Fig.6, caption=
Fault current waveforms of different quench resistors, figureFileSmall=iIho3OXlhEk+yKviYYJneg==, figureFileBig=5++jDdZGrEImeDslRWrAVg==, tableContent=null), ArticleFig(id=1190325631872238386, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=图6, caption=
不同失超电阻故障电流波形, figureFileSmall=iIho3OXlhEk+yKviYYJneg==, figureFileBig=5++jDdZGrEImeDslRWrAVg==, tableContent=null), ArticleFig(id=1190325631956124468, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Fig.7, caption=
Results comparison of three fault current limiting schemes, figureFileSmall=Mh/bjtSf8A/PM0wXkUMtlA==, figureFileBig=U4/PQi9iAU9gKqp2bFxbxg==, tableContent=null), ArticleFig(id=1190325632031621942, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=图7, caption=
3种故障限流方案效果对比, figureFileSmall=Mh/bjtSf8A/PM0wXkUMtlA==, figureFileBig=U4/PQi9iAU9gKqp2bFxbxg==, tableContent=null), ArticleFig(id=1190325632094536504, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=EN, label=Tab.1, caption=
Short-circuit current peak comparison
, figureFileSmall=null, figureFileBig=null, tableContent=
| R-SFCL最大阻值/Ω | 短路电流峰值Idc/kA | 短路电流抑制率/% |
| 0.6 | 25.229 | 41.53 |
| 1 | 21.249 | 50.75 |
| 1.4 | 18.925 | 56.14 |
| 1.8 | 17.37 | 59.74 |
| 2.2 | 16.268 | 62.29 |
| 2.6 | 15.42 | 64.26 |
| 3 | 14.775 | 65.76 |
), ArticleFig(id=1190325632174228282, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1190325325650297442, language=CN, label=表1, caption=
短路电流峰值对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| R-SFCL最大阻值/Ω | 短路电流峰值Idc/kA | 短路电流抑制率/% |
| 0.6 | 25.229 | 41.53 |
| 1 | 21.249 | 50.75 |
| 1.4 | 18.925 | 56.14 |
| 1.8 | 17.37 | 59.74 |
| 2.2 | 16.268 | 62.29 |
| 2.6 | 15.42 | 64.26 |
| 3 | 14.775 | 65.76 |
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