Article(id=1209857948826857690, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1209857942514438502, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2022.02.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1627401600000, receivedDateStr=2021-07-28, revisedDate=1631548800000, revisedDateStr=2021-09-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1766382213074, onlineDateStr=2025-12-22, pubDate=1645286400000, pubDateStr=2022-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766382213074, onlineIssueDateStr=2025-12-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766382213074, creator=13701087609, updateTime=1766382213074, updator=13701087609, issue=Issue{id=1209857942514438502, tenantId=1146029695717560320, journalId=1149653034449285133, year='2022', volume='55', issue='2', pageStart='1', pageEnd='127', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766382211568, creator=13701087609, updateTime=1766562990768, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210616185499021709, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1209857942514438502, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210616185499021710, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1209857942514438502, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=84, endPage=90, ext={EN=ArticleExt(id=1209857949137236194, articleId=1209857948826857690, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Study on Ageing Diagnostic Method of XLPE Cables Based on Broadband Impedance Spectroscopy, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
In this paper, the theoretical basis for ageing diagnosis of XLPE cables based on the electromagnetic wave velocity in cables was elaborated, and the calculating method of average wave velocity according to input impedance spectrum was introduced. Then the effect of uniform ageing and segmented ageing of cables on average wave velocity was studied by simulation, and a method to diagnose cable ageing on the basis of average wave velocity was proposed. Finally, cable models including uniform thermal ageing and segmented thermal ageing were built in the laboratory, and the effectiveness of the above diagnosing method was verified. The results show that the average wave velocity of the accelerated uniform ageing cable and the segmented ageing cable decreases from 166 m/μs to 139 m/μs and 152 m/μs, respectively. The more serious the ageing of cables, the lower the wave velocity in cables. The proposed method can provide more information for ageing diagnosis of XLPE cables.
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本文阐述了基于电缆中电磁波波速诊断XLPE电缆老化的理论依据,介绍了基于输入阻抗谱的电缆平均波速计算方法,仿真研究了电缆均匀老化和分段老化对于平均波速的影响,提出了基于平均波速诊断电缆整体老化状态的方法。最后,实验室内搭建均匀热老化和分段热老化电缆模型,基于试验验证上述诊断方法的有效性。结果表明:加速均匀老化电缆和分段老化电缆的平均波速由166 m/μs分别降低至139 m/μs和152 m/μs,电缆老化越严重,电缆中波速越小。上述方法的提出可为XLPE电缆老化诊断提供更多有效信息。
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王伟(1979-),男(汉族),辽宁沈阳人,副教授,主要从事电气设备的在线监测与故障诊断的研究。
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单秉亮(1990-),男(汉族),辽宁丹东人,博士生,主要从事XLPE电缆老化诊断与寿命评估的研究。
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单秉亮(1990-),男(汉族),辽宁丹东人,博士生,主要从事XLPE电缆老化诊断与寿命评估的研究。
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Correlation between wave velocity and ageing degree of uniform ageing cables, figureFileSmall=/97eq8Q7CSp9cQMux82Mgw==, figureFileBig=va8XnRs0Ec2t0wUSds9oRQ==, tableContent=null), ArticleFig(id=1210905929659323381, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图3, caption=
均匀老化电缆波速和老化程度的关系, figureFileSmall=/97eq8Q7CSp9cQMux82Mgw==, figureFileBig=va8XnRs0Ec2t0wUSds9oRQ==, tableContent=null), ArticleFig(id=1210905929743209464, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.4, caption=
Calculated values of wave velocity in cables with different lengths, figureFileSmall=01M4Gt6c3hbebUdDNxP6vA==, figureFileBig=bM/4YvwaDS1pFU9py2ZalQ==, tableContent=null), ArticleFig(id=1210905929843872765, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图4, caption=
不同长度电缆中波速计算值, figureFileSmall=01M4Gt6c3hbebUdDNxP6vA==, figureFileBig=bM/4YvwaDS1pFU9py2ZalQ==, tableContent=null), ArticleFig(id=1210905929944536066, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.5, caption=
Structure diagram of the segmented-ageing cable, figureFileSmall=c5HGj58h5D/PqTFXeGKfkw==, figureFileBig=RdzjocctWsKHBaLDOLvBuQ==, tableContent=null), ArticleFig(id=1210905930057781252, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图5, caption=
分段老化电缆示意图, figureFileSmall=c5HGj58h5D/PqTFXeGKfkw==, figureFileBig=RdzjocctWsKHBaLDOLvBuQ==, tableContent=null), ArticleFig(id=1210905930158444549, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.6, caption=
Input impedance amplitude spectra of segmented-ageing cables with different ageing degrees, figureFileSmall=w1XNCnDPeT9lopTy8OjvGg==, figureFileBig=U1rdGcqo/wCScofFu5l54w==, tableContent=null), ArticleFig(id=1210905930263302152, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图6, caption=
不同程度分段老化电缆的输入阻抗幅值频谱, figureFileSmall=w1XNCnDPeT9lopTy8OjvGg==, figureFileBig=U1rdGcqo/wCScofFu5l54w==, tableContent=null), ArticleFig(id=1210905930351382538, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.7, caption=
Correlation between average wave velocity and ageing degree of segmented-ageing cables, figureFileSmall=GvWKWKv96mVUtMwcFgWSwA==, figureFileBig=YtvSoMP53EBXqcDR51EEDw==, tableContent=null), ArticleFig(id=1210905930460434447, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图7, caption=
分段老化电缆平均波速和老化程度的关系, figureFileSmall=GvWKWKv96mVUtMwcFgWSwA==, figureFileBig=YtvSoMP53EBXqcDR51EEDw==, tableContent=null), ArticleFig(id=1210905930535931924, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.8, caption=
Correlation between average wave velocity and distribution of ageing areas of segmented-ageing cables, figureFileSmall=nJaYA5es5H0R9zQ9RY26wQ==, figureFileBig=S/IYiFW1mKyYrxHiiGbEPw==, tableContent=null), ArticleFig(id=1210905930619818009, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图8, caption=
分段老化电缆平均波速和老化区域位置分布的关系, figureFileSmall=nJaYA5es5H0R9zQ9RY26wQ==, figureFileBig=S/IYiFW1mKyYrxHiiGbEPw==, tableContent=null), ArticleFig(id=1210905930716287007, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.9, caption=
Test platform for defect location of the cable, figureFileSmall=r15Jy6wTLdeHfukgVtnOgQ==, figureFileBig=v5wXiUlZWScewuxIutQb4Q==, tableContent=null), ArticleFig(id=1210905930808561700, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图9, caption=
电缆缺陷定位试验平台, figureFileSmall=r15Jy6wTLdeHfukgVtnOgQ==, figureFileBig=v5wXiUlZWScewuxIutQb4Q==, tableContent=null), ArticleFig(id=1210905930921807913, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.10, caption=
Amplitude spectrum of input impedance at the head end of the unaged cable, figureFileSmall=F4MHa81NYg5UKZYw0J1pNg==, figureFileBig=drno/qWUh4CSZG4zSxTP4A==, tableContent=null), ArticleFig(id=1210905931043442737, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图10, caption=
未老化电缆的首端输入阻抗幅值频谱, figureFileSmall=F4MHa81NYg5UKZYw0J1pNg==, figureFileBig=drno/qWUh4CSZG4zSxTP4A==, tableContent=null), ArticleFig(id=1210905931169271860, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Fig.11, caption=
Amplitude spectra of input impedance of the cable after thermal ageing, figureFileSmall=lDtcvBQbF/49HJKSjWE2cA==, figureFileBig=ekMZELQSHaZv4sCqO3bQiw==, tableContent=null), ArticleFig(id=1210905931269935158, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=图11, caption=
热老化后电缆的输入阻抗幅值频谱, figureFileSmall=lDtcvBQbF/49HJKSjWE2cA==, figureFileBig=ekMZELQSHaZv4sCqO3bQiw==, tableContent=null), ArticleFig(id=1210905931341238333, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Tab.1, caption=
Fitting parameters of complex dielectric constants of different thermal ageing cable insulations, figureFileSmall=null, figureFileBig=null, tableContent=
| 拟合系数 | 未老化 | 轻微老化 | 严重老化 |
|---|
| C | 2.783 | 3.213 | 4.232 |
| D/(×10-9) | 2.640 | 3.463 | 8.560 |
| P | 0.716 | 0.752 | 0.832 |
), ArticleFig(id=1210905931462873153, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=表1, caption=
不同热老化电缆绝缘复介电常数拟合参数值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 拟合系数 | 未老化 | 轻微老化 | 严重老化 |
|---|
| C | 2.783 | 3.213 | 4.232 |
| D/(×10-9) | 2.640 | 3.463 | 8.560 |
| P | 0.716 | 0.752 | 0.832 |
), ArticleFig(id=1210905931571925061, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Tab.2, caption=
Correlation between average wave velocity and length percentage of ageing areas of segmented-ageing cables, figureFileSmall=null, figureFileBig=null, tableContent=
| 电缆分段老化区域长度占比/% | 电缆分段老化区域不同老化程度下的电缆平均波速/(m/μs) |
|---|
| 轻微老化 | 严重老化 |
|---|
| 1 | 162 | 162 |
| 5 | 161 | 160 |
| 10 | 160 | 159 |
| 20 | 160 | 154 |
| 40 | 158 | 149 |
| 60 | 155 | 142 |
| 80 | 153 | 136 |
| 100 | 151 | 132 |
), ArticleFig(id=1210905931676782663, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=表2, caption=
分段老化电缆平均波速和老化区域长度占比的关系
, figureFileSmall=null, figureFileBig=null, tableContent=
| 电缆分段老化区域长度占比/% | 电缆分段老化区域不同老化程度下的电缆平均波速/(m/μs) |
|---|
| 轻微老化 | 严重老化 |
|---|
| 1 | 162 | 162 |
| 5 | 161 | 160 |
| 10 | 160 | 159 |
| 20 | 160 | 154 |
| 40 | 158 | 149 |
| 60 | 155 | 142 |
| 80 | 153 | 136 |
| 100 | 151 | 132 |
), ArticleFig(id=1210905931769057357, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=EN, label=Tab.3, caption=
Comparison of performance parameters of the cable before and after ageing, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化时间/d | 绝缘层断裂伸长率/% | 电缆中波速/(m/μs) |
|---|
| 内层 | 中层 | 外层 |
|---|
| 0 | — | 898 | — | 166 |
| 64 | 573 | 619 | 695 | 139 |
), ArticleFig(id=1210905931894886475, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209857948826857690, language=CN, label=表3, caption=
电缆老化前后性能参数对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化时间/d | 绝缘层断裂伸长率/% | 电缆中波速/(m/μs) |
|---|
| 内层 | 中层 | 外层 |
|---|
| 0 | — | 898 | — | 166 |
| 64 | 573 | 619 | 695 | 139 |
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