Article(id=1223204289540117472, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221929, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1663257600000, receivedDateStr=2022-09-16, revisedDate=1670774400000, revisedDateStr=2022-12-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564228663, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564228663, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564228663, creator=13701087609, updateTime=1769564228663, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=190, endPage=193, ext={EN=ArticleExt(id=1223204289867273204, articleId=1223204289540117472, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Research on Vibration Monitoring on Ultra-voltage DC Wall Bushing, columnId=1222940986234364233, journalTitle=Water Resources and Power, columnName=ELECTRICAL ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

UHV DC wall bushing is the neck-jamming technology of China’s power grid. At present, not only its core design and manufacturing technology still have many difficulties to be overcome, but also the state monitoring technology of its equipment operation is also a hot issue. This paper explores the application of an on-line monitoring technology based on vibration signals in UHV DC wall bushings. On the basis of analyzing the structure and common faults of UHV DC wall bushings, theoretical simulation research is carried out. It is found that when the outdoor insulation or inner insulation of the UHV DC wall bushing is damaged, the fundamental characteristic frequency of the bushing changes significantly. Afterwards, this paper carried out fault simulation and vibration tests on the cracking of capacitor core and the rupture of silicone rubber shed of the 800 kV UHV DC wall bushing. The results show that the fundamental characteristic frequencies of the bushing under different fault conditions are quite different. Therefore, the use of vibration monitoring technology can effectively identify the faults of UHV DC wall bushings, which can provide technical reference for UHV engineering construction and operation and maintenance personnel.

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特高压直流穿墙套管是我国电网的卡脖子技术之一。目前不仅其核心设计与制造技术存在较多难点有待攻克，其设备运行的状态监测技术也是一个难点问题。为此，在分析特高压直流穿墙套管的结构和常见故障的基础上，探索了振动法在特高压直流穿墙套管故障在线监测领域的应用，并开展了理论仿真研究，发现当特高压直流穿墙套管的外绝缘或内绝缘发生损伤时，套管的基础特征频率有明显改变。随后对800 kV级特高压直流穿墙套管的电容芯子开裂和硅橡胶伞裙破裂开展了故障模拟和振动测试，结果表明不同故障状态下套管的基础特征频率有较大差异。因此采用振动监测技术可有效实现对特高压直流穿墙套管故障的甄别，可为特高压工程建设和运维人员提供技术参考。

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张晋寅（1986-），男，硕士、高级工程师，研究方向为换流站/变电站设备高电压试验技术和变压器、互感器及套管类设备技术监督等，E-mail：405761299@qq.com

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张晋寅（1986-），男，硕士、高级工程师，研究方向为换流站/变电站设备高电压试验技术和变压器、互感器及套管类设备技术监督等，E-mail：405761299@qq.com

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