Article(id=1210577666277765169, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210577662121209865, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2024.08.015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1687536000000, receivedDateStr=2023-06-24, revisedDate=1693843200000, revisedDateStr=2023-09-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1766553807085, onlineDateStr=2025-12-24, pubDate=1724083200000, pubDateStr=2024-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766553807085, onlineIssueDateStr=2025-12-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766553807085, creator=13701087609, updateTime=1766553807085, updator=13701087609, issue=Issue{id=1210577662121209865, tenantId=1146029695717560320, journalId=1149653034449285133, year='2024', volume='57', issue='8', pageStart='1', pageEnd='147', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766553806095, creator=13701087609, updateTime=1766563971278, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210620298043454173, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210577662121209865, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210620298043454174, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210577662121209865, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=122, endPage=129, ext={EN=ArticleExt(id=1210577666860773438, articleId=1210577666277765169, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Analysis on UHF signal intermittency and effective detection rate of partial discharge of metal particles on GIS insulator surface, columnId=1192878364340924664, journalTitle=Insulating Materials, columnName=Test and Analysis, runingTitle=null, highlight=null, articleAbstract=
The ultra-high frequency (UHF) method for detecting partial discharge (PD) is currently one of the important means to evaluate the state and insulation performance of gas insulated switchgear (GIS). In this paper, in order to solve the problem of a large number of missing and false alarms in UHF detection of GIS partial discharge, GIS insulator with metal foreign object attached on the surface was conducted long-term constant voltage experiments. The successful capture probability of discharge signal was analyzed by combining with the existing UHF detection strategies, and optimization schemes of the existing UHF signal detection strategies were proposed from detection time and detection threshold. The results show that the partial discharge of metal foreign object defect attached on the insulator surface has intermittent characteristics, and the existing UHF live detection and online monitoring strategies have low detection probability of discharge. The capture probability of effective discharge can reach 85% by extengding the detection time to 2 247 seconds in optimization of live detection strategy. The detection probability of PD Event can increase by extengding the measurement time of forming a partial discharge event (PD Event) and reducing detection threshold in optimization of online monitoring strategy. In engineering application, the combination of appropriate measurement time and detection threshold can be selected to detect the intermittent discharge.
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局部放电特高频(UHF)方法检测局部放电(PD)是当前评估气体绝缘开关设备(GIS)状态和绝缘性能的重要手段之一。本文为解决局部放电UHF检测出现大量漏报和误报的问题,通过开展GIS绝缘子表面金属异物附着缺陷长期恒压实验,结合现有UHF检测策略对放电信号的成功捕捉概率进行分析,从检测时长和检出阈值两方面对现有UHF信号的检测策略提出了优化方案。结果表明:绝缘子表面金属异物附着缺陷局部放电具有间歇性特点,现有UHF带电检测及在线监测策略对放电的检出概率均不高。针对带电检测策略进行优化,延长检测时长至2 247 s,有效放电的捕捉概率可达85%;针对在线监测策略进行优化,延长形成一个局部放电事件(PD Event)的测量时间和降低其检出阈值皆可增大PD Event的检出概率,工程应用中可选择合适的测量时间和检出阈值相组合的方式来进行间歇性放电的检测。
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李伟(1982-),男(汉族),河南南阳人,高级工程师,主要从事发电厂智慧运维技术的研究;
张连根(1987-),男(汉族),河南商丘人,博士,主要从事电气设备在线监测与故障诊断的研究。
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李伟(1982-),男(汉族),河南南阳人,高级工程师,主要从事发电厂智慧运维技术的研究;
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李伟(1982-),男(汉族),河南南阳人,高级工程师,主要从事发电厂智慧运维技术的研究;
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2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1218111673521586807, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, authorId=1218111673353814637, language=CN, stringName=张连根, firstName=连根, middleName=null, lastName=张, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2华北电力大学,新能源电力系统全国重点实验室,北京 102206, bio={"content":"
张连根(1987-),男(汉族),河南商丘人,博士,主要从事电气设备在线监测与故障诊断的研究。
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2State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1218111676411462344, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, authorId=1218111676218524348, language=CN, stringName=唐志国, firstName=志国, middleName=null, lastName=唐, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2华北电力大学,新能源电力系统全国重点实验室,北京 102206, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1218111673043436119, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, xref=2, ext=[AuthorCompanyExt(id=1218111673051824728, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, companyId=1218111673043436119, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2华北电力大学,新能源电力系统全国重点实验室,北京 102206)])])], keywords=[Keyword(id=1218111676579234509, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, orderNo=1, keyword=ultra-high frequency detection), Keyword(id=1218111676646343377, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, orderNo=2, keyword=gas insulated switchgear), Keyword(id=1218111676717646548, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, orderNo=3, keyword=intermittent partial discharge), Keyword(id=1218111676797338329, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, orderNo=4, keyword=state detection), Keyword(id=1218111676902195937, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, orderNo=1, keyword=特高频检测), Keyword(id=1218111677011247843, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, orderNo=2, keyword=气体绝缘开关设备), Keyword(id=1218111677095133926, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, orderNo=3, keyword=间歇性局部放电), Keyword(id=1218111677225157357, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, orderNo=4, keyword=状态检测)], refs=[Reference(id=1218111681268466559, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, doi=null, pmid=null, pmcid=null, year=1995, volume=2, issue=5, pageStart=893, pageEnd=905, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=PEARSONJ S, FARISHO, HAMPTONB F, journalName=IEEE Transactions on Dielectrics and Electrical Insulation, refType=null, unstructuredReference=
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ZHANGQ. Characteristics and mechanisms of X-ray induced partial discharge in GIS[D]. Beijing: North China Electric Power University,
2020., articleTitle=Characteristics and mechanisms of X-ray induced partial discharge in GIS, refAbstract=null)], funds=[Fund(id=1218111681058751350, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, awardId=202103368, language=CN, fundingSource=中国长江三峡集团有限公司企业科技项目(202103368), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1218111672925995600, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, xref=1, ext=[AuthorCompanyExt(id=1218111672934384209, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, companyId=1218111672925995600, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2华北电力大学,新能源电力系统全国重点实验室,北京 102206)])], figs=[ArticleFig(id=1218111677426483959, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.1, caption=
Diagram of experimental platform, figureFileSmall=aM6pbuwDQakzev4caWxjiQ==, figureFileBig=VTTmDZ14Qi0/JPvuxMxrxw==, tableContent=null), ArticleFig(id=1218111677501981435, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图1, caption=
实验平台示意图, figureFileSmall=aM6pbuwDQakzev4caWxjiQ==, figureFileBig=VTTmDZ14Qi0/JPvuxMxrxw==, tableContent=null), ArticleFig(id=1218111677636199169, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.2, caption=
Diagram of defect model, figureFileSmall=8CZQTq+lQlMvT3WXsfNd8Q==, figureFileBig=b5oD6wGfR2vSg4EbWyGmXA==, tableContent=null), ArticleFig(id=1218111677703308037, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图2, caption=
缺陷模型示意图, figureFileSmall=8CZQTq+lQlMvT3WXsfNd8Q==, figureFileBig=b5oD6wGfR2vSg4EbWyGmXA==, tableContent=null), ArticleFig(id=1218111677808165640, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.3, caption=
The applied voltage curve of the experiment, figureFileSmall=949zYALNksiyoBNj0v33tQ==, figureFileBig=1FSlWEVrTY0drvXVr42tSA==, tableContent=null), ArticleFig(id=1218111677892051724, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图3, caption=
实验加压曲线, figureFileSmall=949zYALNksiyoBNj0v33tQ==, figureFileBig=1FSlWEVrTY0drvXVr42tSA==, tableContent=null), ArticleFig(id=1218111677980132111, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.4, caption=
Trend diagram of discharge repetition rate in different time periods, figureFileSmall=YiYpZAlXDbSOSkBGG0X89w==, figureFileBig=Muxlwqb9P3qI0n4b4A7ptg==, tableContent=null), ArticleFig(id=1218111678047240979, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图4, caption=
不同时间段的放电重复率趋势, figureFileSmall=YiYpZAlXDbSOSkBGG0X89w==, figureFileBig=Muxlwqb9P3qI0n4b4A7ptg==, tableContent=null), ArticleFig(id=1218111678131127064, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.5, caption=
Calculation process of effective discharge probability, figureFileSmall=cZnMErJij/5BQAweT60lcQ==, figureFileBig=iNxI0GbMja3MVCtJG7jyRw==, tableContent=null), ArticleFig(id=1218111678206624541, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图5, caption=
有效放电概率计算流程, figureFileSmall=cZnMErJij/5BQAweT60lcQ==, figureFileBig=iNxI0GbMja3MVCtJG7jyRw==, tableContent=null), ArticleFig(id=1218111678294704929, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.6, caption=
Effective discharge capture probability under different detection durations, figureFileSmall=A2Es3V7358Y+e0zClpmJRQ==, figureFileBig=8b0kdH3V2hpKyrDA+K1q7A==, tableContent=null), ArticleFig(id=1218111678386979621, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图6, caption=
不同检测时长下的有效放电捕捉概率, figureFileSmall=A2Es3V7358Y+e0zClpmJRQ==, figureFileBig=8b0kdH3V2hpKyrDA+K1q7A==, tableContent=null), ArticleFig(id=1218111678449894184, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.7, caption=
The capture probability of PD Event under different detection durations, figureFileSmall=B/8f6bS0/je4L4hgHDRgAA==, figureFileBig=fm505I3SLueYrZFzVytn1Q==, tableContent=null), ArticleFig(id=1218111678546363183, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图7, caption=
不同检测时长下PD Event的捕捉概率, figureFileSmall=B/8f6bS0/je4L4hgHDRgAA==, figureFileBig=fm505I3SLueYrZFzVytn1Q==, tableContent=null), ArticleFig(id=1218111678621860659, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.8, caption=
The detection probability of PD Event under different detection durations and thresholds, figureFileSmall=4js9vhVctTkI7Qmbh7YhDA==, figureFileBig=LcNgDvntGOpcb2mmK3CMdg==, tableContent=null), ArticleFig(id=1218111678718329654, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图8, caption=
不同检测时长及阈值下PD Event的检出概率, figureFileSmall=4js9vhVctTkI7Qmbh7YhDA==, figureFileBig=LcNgDvntGOpcb2mmK3CMdg==, tableContent=null), ArticleFig(id=1218111678785438523, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.9, caption=
The proportion of Te, Ts and Tz intervals of different size defects under discharge development stage, figureFileSmall=tVrJc3qyLY7b6E6JG2OP0g==, figureFileBig=0Ri/DJS+/978b+jfdKUHwA==, tableContent=null), ArticleFig(id=1218111678856741697, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图9, caption=
放电发展阶段不同尺寸缺陷的Te、Ts、Tz区间占比, figureFileSmall=tVrJc3qyLY7b6E6JG2OP0g==, figureFileBig=0Ri/DJS+/978b+jfdKUHwA==, tableContent=null), ArticleFig(id=1218111678949016389, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Fig.10, caption=
Effective discharge capture probability of three size defects under different detection time, figureFileSmall=1eMMPkHpq3sZe5LnlZ/SLQ==, figureFileBig=RaWYcbpjf73gSBnTQjyeWQ==, tableContent=null), ArticleFig(id=1218111679049679687, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=图10, caption=
3种尺寸缺陷在不同检测时长下的有效放电捕捉概率, figureFileSmall=1eMMPkHpq3sZe5LnlZ/SLQ==, figureFileBig=RaWYcbpjf73gSBnTQjyeWQ==, tableContent=null), ArticleFig(id=1218111680358302543, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Table 1, caption=
Discharge parameter statistics, figureFileSmall=null, figureFileBig=null, tableContent=
| 区间 | Te/s | Ts/s | Tz/s | De/% |
|---|
| 0~96 h | 147 965 | 71 305 | 126 330 | 42.81 |
| 0~10 h | 26 184 | 7 638 | 2 178 | 72.73 |
| 10~25 h | 3 562 | 3 785 | 46 653 | 6.60 |
| 25~45 h | 286 | 13 549 | 58 165 | 0.40 |
| 45~96 h | 117 931 | 46 335 | 19 334 | 64.23 |
), ArticleFig(id=1218111680484131672, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=表1, caption=
放电参量统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 区间 | Te/s | Ts/s | Tz/s | De/% |
|---|
| 0~96 h | 147 965 | 71 305 | 126 330 | 42.81 |
| 0~10 h | 26 184 | 7 638 | 2 178 | 72.73 |
| 10~25 h | 3 562 | 3 785 | 46 653 | 6.60 |
| 25~45 h | 286 | 13 549 | 58 165 | 0.40 |
| 45~96 h | 117 931 | 46 335 | 19 334 | 64.23 |
), ArticleFig(id=1218111680559629146, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Table 2, caption=
The detection probability of PD event under different detection thresholds, figureFileSmall=null, figureFileBig=null, tableContent=
| 检出阈值/(次/s) | 10 | 8 | 6 | 4 | 2 |
|---|
| 检出概率/% | 42.81 | 46.45 | 49.89 | 53.31 | 56.96 |
), ArticleFig(id=1218111680660292451, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=表2, caption=
不同检出阈值下PD Event的检出概率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 检出阈值/(次/s) | 10 | 8 | 6 | 4 | 2 |
|---|
| 检出概率/% | 42.81 | 46.45 | 49.89 | 53.31 | 56.96 |
), ArticleFig(id=1218111680760955751, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=EN, label=Table 3, caption=
The size of metal particle, figureFileSmall=null, figureFileBig=null, tableContent=
| 金属颗粒长度/mm | 10 | 10 | 5 |
|---|
| 金属颗粒端部曲率半径/μm | 25 | 250 | 25 |
), ArticleFig(id=1218111680874201967, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210577666277765169, language=CN, label=表3, caption=
金属颗粒尺寸
, figureFileSmall=null, figureFileBig=null, tableContent=
| 金属颗粒长度/mm | 10 | 10 | 5 |
|---|
| 金属颗粒端部曲率半径/μm | 25 | 250 | 25 |
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