Article(id=1322531313714840392, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1322531228222337541, articleNumber=null, orderNo=null, doi=10.13234/j.issn.2095-2805.2026.3.335, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1694966400000, receivedDateStr=2023-09-18, revisedDate=1700409600000, revisedDateStr=2023-11-20, acceptedDate=1701273600000, acceptedDateStr=2023-11-30, onlineDate=1793245636632, onlineDateStr=2026-10-29, pubDate=1774800000000, pubDateStr=2026-03-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793245636632, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793245636632, creator=13701087609, updateTime=1793245636632, updator=13701087609, issue=Issue{id=1322531228222337541, tenantId=1146029695717560320, journalId=1146031654075715584, year='2026', volume='24', issue='3', pageStart='1', pageEnd='343', issueExtLink='null', onlineDate='null', pubDate='1774800000000', pubDateStr='2026-03-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793245616250, creator='13701087609', updateTime=1793245616250, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=335, endPage=343, ext={EN=ArticleExt(id=1322531314104910665, articleId=1322531313714840392, tenantId=1146029695717560320, journalId=1146031654075715584, language=EN, title=Open-circuit Fault Diagnosis and Fault-tolerant Control of T-type Three-level Grid-connected Converter, columnId=1321491668864455519, journalTitle=Journal of Power Supply, columnName=Fault Diagnosis and Reliability, runingTitle=null, highlight=null, articleAbstract=

To improve the reliability of a grid-connected converter under operation, an open-circuit fault diagnosis and fault-tolerant control strategy is proposed for a T-type three-level grid-connected converter. After an open-circuit fault occurs in a power device, through the analysis of the operating state of the converter, the changing relationship between the converter output current and the currents flowing from the midpoint of the DC-side capacitor to each phase is elucidated. The average value of the converter output current and that of the currents flowing from the midpoint of the DC-side capacitor to each phase are calculated, and these values are compared with the preset diagnostic thresholds to locate the faulty power device. According to their locations, the faults are categorized into Class-I (vertical bridge arm fault) and Class-II (horizontal bridge arm fault). The corresponding fault-tolerant structures are designed for the two types of faults, and a fault diagnosis and model predictive fault-tolerant control strategy is proposed for the T-type three-level grid-connected converter. Experimental results verify that the proposed method can quickly locate the position of the faulty power device of the converter, realize fault-tolerant continuous operation and improve the reliability of the converter.

, authors=Nan JIN, Yingxun XIA, Leilei GUO, Yanyan LI, Wuchuang FAN, authorsList=Nan JIN, Yingxun XIA, Leilei GUO, Yanyan LI, Wuchuang FAN, authorCompany=null, correspAuthors=Yingxun XIA, 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=1322531316218839887, articleId=1322531313714840392, tenantId=1146029695717560320, journalId=1146031654075715584, language=CN, title=T型三电平并网变换器开路故障检测及容错控制, columnId=1321491668998673249, journalTitle=电源学报, columnName=故障诊断与可靠性, runingTitle=null, highlight=null, articleAbstract=

为提高并网变换器运行的可靠性，针对T型三电平并网变换器提出了1种开路故障诊断及容错控制策略。功率器件发生开路故障后，通过分析变换器的运行状态，阐明了变换器输出电流及直流侧电容中点流向各相电流的变化关系；计算变换器输出电流平均值和从直流侧电容中点流向各相电流平均值，将这些平均值与设定的诊断阈值比较，定位故障功率器件。根据故障位置，分为Ⅰ类故障（垂直桥臂故障）和Ⅱ类故障（水平桥臂故障）。针对2类故障分别设计相应的容错结构，并提出1种T型三电平并网变换器的故障诊断与模型预测容错控制策略。实验结果验证了所提方法能快速定位变换器故障功率器件位置，实现故障容错连续运行，提高变换器可靠性。

, authors=金楠, 夏英巽, 郭磊磊, 李琰琰, 樊武闯, authorsList=金楠, 夏英巽, 郭磊磊, 李琰琰, 樊武闯, authorCompany=null, correspAuthors=夏英巽, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=eCmmyem7jCmbef7fkV3rpA==, magXml=UcMonwS/cWdoHybxfosvJg==, pdfUrl=null, pdf=T21QNu0etbHoxMrY304ovg==, pdfFileSize=4374829, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=mdZOCraxZekXakAiPLKHPg==, mapNumber=null, fund=null)}, authors=[Author(id=1322531448523968842, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1322531313714840392, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=jinnan@zzuli.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322531448607854924, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1322531313714840392, authorId=1322531448523968842, language=EN, stringName=Nan JIN, firstName=Nan, middleName=null, lastName=JIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=College of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322531448683352397, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1322531313714840392, authorId=1322531448523968842, language=CN, stringName=金楠, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=郑州轻工业大学电气信息工程学院，郑州　450002, bio={"content":"

金楠（1982—　），男，博士，教授。研究方向：电力电子与电能变换。E-mail：jinnan@zzuli.edu.cn。

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金楠（1982—　），男，博士，教授。研究方向：电力电子与电能变换。E-mail：jinnan@zzuli.edu.cn。

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郭磊磊（1987—　），男，博士，副教授。研究方向：并网逆变器控制。E-mail：2016045@zzuli.edu.cn。

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郭磊磊（1987—　），男，博士，副教授。研究方向：并网逆变器控制。E-mail：2016045@zzuli.edu.cn。

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李琰琰（1987—　），女，博士，讲师。研究方向：并网逆变器控制。E-mail：2017069@zzuli.edu.cn。

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李琰琰（1987—　），女，博士，讲师。研究方向：并网逆变器控制。E-mail：2017069@zzuli.edu.cn。

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樊武闯（1995—　），男，硕士研究生。研究方向：并网变换器开路故障检测。E-mail：332101050054@zzuli.edu.cn。

"}, bioImg=null, bioContent=

樊武闯（1995—　），男，硕士研究生。研究方向：并网变换器开路故障检测。E-mail：332101050054@zzuli.edu.cn。

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