Article(id=1322557057643954351, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1322557042389275039, articleNumber=null, orderNo=null, doi=10.13234/j.issn.2095-2805.2026.8.319, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730044800000, receivedDateStr=2024-10-28, revisedDate=1733241600000, revisedDateStr=2024-12-04, acceptedDate=1734710400000, acceptedDateStr=2024-12-21, onlineDate=1793251774464, onlineDateStr=2026-10-29, pubDate=1788019200000, pubDateStr=2026-08-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793251774464, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793251774464, creator=13701087609, updateTime=1793251774464, updator=13701087609, issue=Issue{id=1322557042389275039, tenantId=1146029695717560320, journalId=1146031654075715584, year='2026', volume='24', issue='8', pageStart='1', pageEnd='354', issueExtLink='null', onlineDate='null', pubDate='1788019200000', pubDateStr='2026-08-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793251770826, creator='13701087609', updateTime=1793251770826, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=319, endPage=327, ext={EN=ArticleExt(id=1322557057920778416, articleId=1322557057643954351, tenantId=1146029695717560320, journalId=1146031654075715584, language=EN, title=Monitoring of Stator Winding Ground Insulation of Inverter-fed Machine Based on Common-mode Circuit, columnId=1321491668864455519, journalTitle=Journal of Power Supply, columnName=Fault Diagnosis and Reliability, runingTitle=null, highlight=null, articleAbstract=

To achieve the monitoring of line-end and internal coil ground insulation of the stator winding for an inverter-fed machine, an insulation monitoring method based on common-mode circuit is proposed. First, based on the common-mode equivalent model of the motor, the impedance characteristics of the common-mode circuit of the motor system at high-frequency in MHz and medium-frequency in kHz were analyzed. Then, based on the common-mode impedance characteristics, the dominant mode and path of common-mode current were analyzed. Theoretically, the relationship among the oscillation frequency of medium- and high-frequency common-mode current, the terminal ground capacitance and the internal ground capacitance of the stator winding was derived. The variational mode decomposition algorithm was used to separate the two modes of common-mode current, and the insulation degradation statuses of the line-end and internal coil of machine stator winding were monitored through high-frequency common-mode current and medium-frequency common-mode current, respectively. Experimental results show that the proposed method can sensitively reflect the slight changes in the insulation at the line-end and internal coil of machine stator winding.

, authors=Chang WANG1, Shanhu LI1, Feng NIU1, Yifu DING2, Yun WANG2, Lisha LIU3, authorsList=Chang WANG, Shanhu LI, Feng NIU, Yifu DING, Yun WANG, Lisha LIU, authorCompany=null, correspAuthors=Shanhu LI, 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=1322557062182191283, articleId=1322557057643954351, tenantId=1146029695717560320, journalId=1146031654075715584, language=CN, title=基于共模回路的变频电机定子绕组对地绝缘监测, columnId=1321491668998673249, journalTitle=电源学报, columnName=故障诊断与可靠性, runingTitle=null, highlight=null, articleAbstract=

为实现变频电机定子绕组相端和内部对地绝缘状态监测,提出一种基于共模回路的绝缘监测方法。首先基于电机共模等效模型,分析了电机系统共模回路阻抗MHz高频和kHz中频特性。基于共模阻抗特性,分析了共模电流的主导模态及路径。从理论上推导出中高频共模电流振荡频率与电机端部电容和绕组内部绝缘电容的关系,利用变分模态分解算法,将共模电流的2种模态进行分离,通过高频共模和中频共模电流分别监测电机相端和绕组内部绝缘劣化状况。实验结果表明,所提方法可以灵敏地反映电机相端绝缘和绕组内部绝缘的微弱变化。

, authors=王昌1, 李珊瑚1, 牛峰中国电源学会会员1, 丁一夫2, 王云2, 刘丽莎3, authorsList=王昌, 李珊瑚, 牛峰中国电源学会会员, 丁一夫, 王云, 刘丽莎, authorCompany=null, correspAuthors=李珊瑚, authorNote=

王昌(1997— ),男,硕士研究生。研究方向:变频驱动系统电磁可靠性。E-mail:。

牛峰(1986— ),男,中国电源学会会员,博士,教授。研究方向:电机系统可靠性,电机控制,电机故障诊断。E-mail:。

丁一夫(1977— ),男,硕士,正高级工程师。研究方向:电驱动系统电磁兼容。E-mail:。

王云(1991— ),男,硕士,工程师。研究方向:电驱动系统电磁兼容。E-mail:。

刘丽莎(1985— ),女,硕士,高级工程师。研究方向:水利水电工程电气及自动化设计。E-mail:。

, correspAuthorsNote=
李珊瑚(1985— ),女,通信作者,博士,教授。研究方向:高精度伺服驱动与运动控制,变频驱动系统电磁可靠性,矩阵变换器。E-mail:。
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王昌(1997— ),男,硕士研究生。研究方向:变频驱动系统电磁可靠性。E-mail:。

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王昌(1997— ),男,硕士研究生。研究方向:变频驱动系统电磁可靠性。E-mail:。

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牛峰(1986— ),男,中国电源学会会员,博士,教授。研究方向:电机系统可靠性,电机控制,电机故障诊断。E-mail:。

"}, bioImg=null, bioContent=

牛峰(1986— ),男,中国电源学会会员,博士,教授。研究方向:电机系统可靠性,电机控制,电机故障诊断。E-mail:。

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丁一夫(1977— ),男,硕士,正高级工程师。研究方向:电驱动系统电磁兼容。E-mail:。

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丁一夫(1977— ),男,硕士,正高级工程师。研究方向:电驱动系统电磁兼容。E-mail:。

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王云(1991— ),男,硕士,工程师。研究方向:电驱动系统电磁兼容。E-mail:。

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王云(1991— ),男,硕士,工程师。研究方向:电驱动系统电磁兼容。E-mail:。

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刘丽莎(1985— ),女,硕士,高级工程师。研究方向:水利水电工程电气及自动化设计。E-mail:。

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刘丽莎(1985— ),女,硕士,高级工程师。研究方向:水利水电工程电气及自动化设计。E-mail:。

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基于共模回路的变频电机定子绕组对地绝缘监测
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王昌 1 , 李珊瑚 1 , 牛峰中国电源学会会员 1 , 丁一夫 2 , 王云 2 , 刘丽莎 3
电源学报 | 故障诊断与可靠性 2026,24(8): 319-327
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电源学报 |故障诊断与可靠性 2026 , 24 (8) : 319 -327
基于共模回路的变频电机定子绕组对地绝缘监测
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王云(1991— ),男,硕士,工程师。研究方向:电驱动系统电磁兼容。E-mail:。

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刘丽莎(1985— ),女,硕士,高级工程师。研究方向:水利水电工程电气及自动化设计。E-mail:。

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刘丽莎(1985— ),女,硕士,高级工程师。研究方向:水利水电工程电气及自动化设计。E-mail:。

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王昌1 , 李珊瑚1 , 牛峰中国电源学会会员1 , 丁一夫2 , 王云2 , 刘丽莎3
作者信息
  • 1.河北工业大学电气工程学院,天津 300401
  • 2.中汽研新能源汽车检验中心(天津)有限公司,天津 300300
  • 3.河北省水利规划设计研究院有限公司,石家庄 050021
通讯作者:
李珊瑚(1985— ),女,通信作者,博士,教授。研究方向:高精度伺服驱动与运动控制,变频驱动系统电磁可靠性,矩阵变换器。E-mail:。
作者简介:

王昌(1997— ),男,硕士研究生。研究方向:变频驱动系统电磁可靠性。E-mail:。

牛峰(1986— ),男,中国电源学会会员,博士,教授。研究方向:电机系统可靠性,电机控制,电机故障诊断。E-mail:。

丁一夫(1977— ),男,硕士,正高级工程师。研究方向:电驱动系统电磁兼容。E-mail:。

王云(1991— ),男,硕士,工程师。研究方向:电驱动系统电磁兼容。E-mail:。

刘丽莎(1985— ),女,硕士,高级工程师。研究方向:水利水电工程电气及自动化设计。E-mail:。

Monitoring of Stator Winding Ground Insulation of Inverter-fed Machine Based on Common-mode Circuit
Chang WANG1 , Shanhu LI1 , Feng NIU Member, CPSS1 , Yifu DING2 , Yun WANG2 , Lisha LIU3
Affiliations
  • 1.School of Electrical Engineering, Hebei University of Technology, Tianjin 300401, China
  • 2.CATARC New Energy Vehicle Test Center (Tianjin) Co., Ltd., Tianjin 300300, China
  • 3.Hebei Water Conservancy Planning & Design Institute Co., Ltd., Shijiazhuang 050021, China
出版时间: 2026-08-30 doi: 10.13234/j.issn.2095-2805.2026.8.319
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为实现变频电机定子绕组相端和内部对地绝缘状态监测,提出一种基于共模回路的绝缘监测方法。首先基于电机共模等效模型,分析了电机系统共模回路阻抗MHz高频和kHz中频特性。基于共模阻抗特性,分析了共模电流的主导模态及路径。从理论上推导出中高频共模电流振荡频率与电机端部电容和绕组内部绝缘电容的关系,利用变分模态分解算法,将共模电流的2种模态进行分离,通过高频共模和中频共模电流分别监测电机相端和绕组内部绝缘劣化状况。实验结果表明,所提方法可以灵敏地反映电机相端绝缘和绕组内部绝缘的微弱变化。

变频电机  /  共模回路  /  绕组绝缘  /  变分模态分解

To achieve the monitoring of line-end and internal coil ground insulation of the stator winding for an inverter-fed machine, an insulation monitoring method based on common-mode circuit is proposed. First, based on the common-mode equivalent model of the motor, the impedance characteristics of the common-mode circuit of the motor system at high-frequency in MHz and medium-frequency in kHz were analyzed. Then, based on the common-mode impedance characteristics, the dominant mode and path of common-mode current were analyzed. Theoretically, the relationship among the oscillation frequency of medium- and high-frequency common-mode current, the terminal ground capacitance and the internal ground capacitance of the stator winding was derived. The variational mode decomposition algorithm was used to separate the two modes of common-mode current, and the insulation degradation statuses of the line-end and internal coil of machine stator winding were monitored through high-frequency common-mode current and medium-frequency common-mode current, respectively. Experimental results show that the proposed method can sensitively reflect the slight changes in the insulation at the line-end and internal coil of machine stator winding.

Inverter-fed machine  /  common-mode circuit  /  winding insulation  /  variational mode decomposition
王昌, 李珊瑚, 牛峰中国电源学会会员, 丁一夫, 王云, 刘丽莎. 基于共模回路的变频电机定子绕组对地绝缘监测. 电源学报, 2026 , 24 (8) : 319 -327 . DOI: 10.13234/j.issn.2095-2805.2026.8.319
Chang WANG, Shanhu LI, Feng NIU, Yifu DING, Yun WANG, Lisha LIU. Monitoring of Stator Winding Ground Insulation of Inverter-fed Machine Based on Common-mode Circuit[J]. Journal of Power Supply, 2026 , 24 (8) : 319 -327 . DOI: 10.13234/j.issn.2095-2805.2026.8.319
  • 京津冀基础研究合作专项资助项目(E2024202263)
  • 国家自然科学基金资助项目(52477044)
  • 河北省自然科学基金资助项目(E2024202079)
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2026年第24卷第8期
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doi: 10.13234/j.issn.2095-2805.2026.8.319
  • 接收时间:2024-10-28
  • 首发时间:2026-10-29
  • 出版时间:2026-08-30
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  • 收稿日期:2024-10-28
  • 修回日期:2024-12-04
  • 录用日期:2024-12-21
基金
Beijing Tianjin Hebei Basic Research Cooperation Special Project(E2024202263)
京津冀基础研究合作专项资助项目(E2024202263)
National Natural Science Foundation of China(52477044)
国家自然科学基金资助项目(52477044)
Natural Science Foundation of Hebei Province(E2024202079)
河北省自然科学基金资助项目(E2024202079)
作者信息
    1.河北工业大学电气工程学院,天津 300401
    2.中汽研新能源汽车检验中心(天津)有限公司,天津 300300
    3.河北省水利规划设计研究院有限公司,石家庄 050021

通讯作者:

李珊瑚(1985— ),女,通信作者,博士,教授。研究方向:高精度伺服驱动与运动控制,变频驱动系统电磁可靠性,矩阵变换器。E-mail:。
参考文献
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