Article(id=1309884740644200928, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1309884740061192672, articleNumber=null, orderNo=null, doi=10.20104/j.cnki.1674-6546.20260175, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1783353600000, revisedDateStr=2026-07-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1790230458651, onlineDateStr=2026-09-24, pubDate=1789401600000, pubDateStr=2026-09-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790230458651, onlineIssueDateStr=2026-09-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790230458651, creator=13701087609, updateTime=1790230458651, updator=13701087609, issue=Issue{id=1309884740061192672, tenantId=1146029695717560320, journalId=1189918454225211397, year='2026', volume='', issue='9', pageStart='1', pageEnd='48', issueExtLink='null', onlineDate='null', pubDate='1789401600000', pubDateStr='2026-09-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790230458512, creator='13701087609', updateTime=1790230907791, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309886624545211382, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1309884740061192672, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309886624545211383, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1309884740061192672, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=43, endPage=48, ext={EN=ArticleExt(id=1309884740816167393, articleId=1309884740644200928, tenantId=1146029695717560320, journalId=1189918454225211397, language=EN, title=Research on DC Injection-Based Insulation Monitoring Circuit for On-Board Charger, columnId=null, journalTitle=Automotive Engineer, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To address the issues that the insulation monitoring circuit of the On-Board Charger (OBC) cannot perform insulation monitoring before inverter activation and is prone to false alarms caused by capacitive loads, and an insulation monitoring circuit is developed by introducing a DC voltage component via a current mirror to monitor the insulation at the OBC inverter output. The parameter selection and design of critical electronic components in the circuit are analyzed. Simulation and experimental verifications are carried out by building simulation circuits and prototypes. The results show that the proposed scheme can complete self-check before OBC inverter output and effectively avoid false insulation monitoring alarms caused by capacitive loads.

, authors=Lei Zeng, Liangbin Deng, Rijin Wang, Hao Zhou, authorsList=Lei Zeng, Liangbin Deng, Rijin Wang, Hao Zhou, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309884740988133858, articleId=1309884740644200928, tenantId=1146029695717560320, journalId=1189918454225211397, language=CN, title=车载充电机直流注入式绝缘监测电路应用研究, columnId=0, journalTitle=汽车工程师, columnName=, runingTitle=null, highlight=null, articleAbstract=

针对车载充电机(OBC)绝缘监测电路在逆变输出前无法实现绝缘监测,且易因容性负载导致绝缘监测误报的问题,利用电流镜加入直流电压分量搭建绝缘监测电路实现对OBC逆变输出端的绝缘监测,并对电路设计中关键电子元器件参数选型设计进行分析,通过搭建仿真电路和样机开展仿真和试验验证。结果表明,该方案能够在OBC逆变输出前完成自检,并有效避免容性负载引起的绝缘监测误报。

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车载充电机直流注入式绝缘监测电路应用研究
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曾磊 , 邓亮斌 , 王日金 , 周浩
汽车工程师 | 2026,(9): 43-48
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车载充电机直流注入式绝缘监测电路应用研究
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曾磊, 邓亮斌, 王日金, 周浩
作者信息
  • 株洲中车时代电气股份有限公司,株洲 412007
Research on DC Injection-Based Insulation Monitoring Circuit for On-Board Charger
Lei Zeng, Liangbin Deng, Rijin Wang, Hao Zhou
Affiliations
  • CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd., Zhuzhou 412007
出版时间: 2026-09-15 doi: 10.20104/j.cnki.1674-6546.20260175
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针对车载充电机(OBC)绝缘监测电路在逆变输出前无法实现绝缘监测,且易因容性负载导致绝缘监测误报的问题,利用电流镜加入直流电压分量搭建绝缘监测电路实现对OBC逆变输出端的绝缘监测,并对电路设计中关键电子元器件参数选型设计进行分析,通过搭建仿真电路和样机开展仿真和试验验证。结果表明,该方案能够在OBC逆变输出前完成自检,并有效避免容性负载引起的绝缘监测误报。

车载充电机  /  绝缘监测  /  电流镜  /  直流分量

To address the issues that the insulation monitoring circuit of the On-Board Charger (OBC) cannot perform insulation monitoring before inverter activation and is prone to false alarms caused by capacitive loads, and an insulation monitoring circuit is developed by introducing a DC voltage component via a current mirror to monitor the insulation at the OBC inverter output. The parameter selection and design of critical electronic components in the circuit are analyzed. Simulation and experimental verifications are carried out by building simulation circuits and prototypes. The results show that the proposed scheme can complete self-check before OBC inverter output and effectively avoid false insulation monitoring alarms caused by capacitive loads.

On-Board Charger (OBC)  /  Insulation monitoring  /  Current mirror  /  DC component
曾磊, 邓亮斌, 王日金, 周浩. 车载充电机直流注入式绝缘监测电路应用研究. 汽车工程师, 2026 , (9) : 43 -48 . DOI: 10.20104/j.cnki.1674-6546.20260175
Lei Zeng, Liangbin Deng, Rijin Wang, Hao Zhou. Research on DC Injection-Based Insulation Monitoring Circuit for On-Board Charger[J]. Automotive Engineer, 2026 , (9) : 43 -48 . DOI: 10.20104/j.cnki.1674-6546.20260175

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doi: 10.20104/j.cnki.1674-6546.20260175
  • 首发时间:2026-09-24
  • 出版时间:2026-09-15
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    株洲中车时代电气股份有限公司,株洲 412007
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