Article(id=1198667703620825295, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198667701179740314, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2023.05.015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1650816000000, receivedDateStr=2022-04-25, revisedDate=1657814400000, revisedDateStr=2022-07-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1763714250711, onlineDateStr=2025-11-21, pubDate=1684512000000, pubDateStr=2023-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763714250711, onlineIssueDateStr=2025-11-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763714250711, creator=13701087609, updateTime=1763714250711, updator=13701087609, issue=Issue{id=1198667701179740314, tenantId=1146029695717560320, journalId=1149653034449285133, year='2023', volume='56', issue='5', pageStart='1', pageEnd='113', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763714250130, creator=13701087609, updateTime=1766563551357, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210618536771318327, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198667701179740314, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210618536771318328, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198667701179740314, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=95, endPage=102, ext={EN=ArticleExt(id=1198667704757481724, articleId=1198667703620825295, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Detection method of cable fault based on correlation coefficient of reflection coefficient spectrum, columnId=1192878364340924664, journalTitle=Insulating Materials, columnName=Test and Analysis, runingTitle=null, highlight=null, articleAbstract=
The frequency domain reflection method can effectively detect the fault in cable, but the traditional methods can only locate the fault in cable and can not detect the impedance state of the fault. Therefore, we proposed a cable fault detection method based on the correlation coefficient of reflection coefficient spectrum in this paper. Firstly, the comparison function was designed, then the function curve of correlation coefficient was constructed by comparing the function and reflection coefficient spectrum, and the position and type of the extreme value in the function curve were used to detect the position and impedance state of fault, respectively. At last, a 10 kV power cable with fault was conducted simulation research and a 60 m of 10 kV power cable with fault was conducted experimental research. The simulation and experiment results show that the cable fault detection method based on correlation coefficient of reflection coefficient spectrum has high location accuracy on the cable faults, and it can accurately detect the impedance state of fault.
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频域反射法可以有效探测电缆中故障,但是传统的数据处理方法只能定位电缆中故障,而不能检测故障的阻抗状态。因此,本文提出了一种基于反射系数谱相关系数的电缆故障检测方法。首先设计对比函数,然后通过对比函数与反射系数谱构建相关系数的函数曲线,并利用该曲线中极值的位置与类型分别检测故障的位置与阻抗状态。最后对含故障的10 kV电力电缆开展仿真研究,并对含故障的60 m 10 kV电力电缆开展实验研究。仿真与实验结果表明:基于反射系数谱相关系数的电缆故障检测方法对电缆故障的定位精度较高,并且可以准确检测故障的阻抗状态。
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田立斌(1964-),男(汉族),广东广州人,副教授,研究方向为电力设备的可靠性分析。
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刘鹏程(1988-),男(汉族),海南乐东人,工程师,研究方向为输电设备的故障诊断。
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刘鹏程(1988-),男(汉族),海南乐东人,工程师,研究方向为输电设备的故障诊断。
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Schematic diagram of cable with fault, figureFileSmall=6sozHkFv0c6LAw+2ioZYyw==, figureFileBig=ZaxNC5GK4rKMuHbZmVqDBg==, tableContent=null), ArticleFig(id=1210986420274066140, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=图2, caption=
含有故障的电缆示意图, figureFileSmall=6sozHkFv0c6LAw+2ioZYyw==, figureFileBig=ZaxNC5GK4rKMuHbZmVqDBg==, tableContent=null), ArticleFig(id=1210986420387312352, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Fig.3, caption=
Cable models with fault, figureFileSmall=hIudgjun20/5bg1mKmPuzg==, figureFileBig=08CbkEzr+7NnRhPeKbbL8g==, tableContent=null), ArticleFig(id=1210986420487975653, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=图3, caption=
含有故障的电缆模型, figureFileSmall=hIudgjun20/5bg1mKmPuzg==, figureFileBig=08CbkEzr+7NnRhPeKbbL8g==, tableContent=null), ArticleFig(id=1210986420597027562, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Fig.4, caption=
Processing results of fault cable model by the proposed method, figureFileSmall=AdUBkM+ZpQyNUT08DGz8vw==, figureFileBig=TuJ6EF8Q/YQenhAyaAP1PQ==, tableContent=null), ArticleFig(id=1210986420685107952, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=图4, caption=
本文方法对故障电缆模型的处理结果, figureFileSmall=AdUBkM+ZpQyNUT08DGz8vw==, figureFileBig=TuJ6EF8Q/YQenhAyaAP1PQ==, tableContent=null), ArticleFig(id=1210986420764799731, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Fig.5, caption=
Traditional fault diagnosis function of cable models, figureFileSmall=d7ywcUWJv4CtAly6DMNL7w==, figureFileBig=6WBD3+M3/7MGCoX3TYclSw==, tableContent=null), ArticleFig(id=1210986420848685815, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=图5, caption=
电缆模型的传统故障诊断函数, figureFileSmall=d7ywcUWJv4CtAly6DMNL7w==, figureFileBig=6WBD3+M3/7MGCoX3TYclSw==, tableContent=null), ArticleFig(id=1210986420961932031, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Fig.6, caption=
Measurement platform of reflection coefficient spectrum, figureFileSmall=TmQsei1weWGTb2RyLL6IKQ==, figureFileBig=rNrGsmX8Ja8pCUdRTn8J1g==, tableContent=null), ArticleFig(id=1210986421050012416, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=图6, caption=
反射系数谱的测量平台, figureFileSmall=TmQsei1weWGTb2RyLL6IKQ==, figureFileBig=rNrGsmX8Ja8pCUdRTn8J1g==, tableContent=null), ArticleFig(id=1210986422308303621, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Fig.7, caption=
Processing results of actual cables by the proposed method, figureFileSmall=GvWehecuadc7R+amp/AMvQ==, figureFileBig=2maPEuIXcTd8CLYDFIJ1ow==, tableContent=null), ArticleFig(id=1210986422434132748, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=图7, caption=
本文方法对真实电缆的处理结果, figureFileSmall=GvWehecuadc7R+amp/AMvQ==, figureFileBig=2maPEuIXcTd8CLYDFIJ1ow==, tableContent=null), ArticleFig(id=1210986422518018832, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Fig.8, caption=
Traditional fault diagnosis function of the actual cables, figureFileSmall=+uywwFyDa4PFl5Beb3DG9g==, figureFileBig=gTi3RExQl9WwKh4mCjaFqw==, tableContent=null), ArticleFig(id=1210986422673208084, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=图8, caption=
真实电缆的传统故障诊断函数, figureFileSmall=+uywwFyDa4PFl5Beb3DG9g==, figureFileBig=gTi3RExQl9WwKh4mCjaFqw==, tableContent=null), ArticleFig(id=1210986422799037205, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Tab.1, caption=
Fault situation of cable model, figureFileSmall=null, figureFileBig=null, tableContent=
| 电缆模型编号 | 故障类型 |
|---|
| 1# | 开路故障 |
| 2# | 短路故障 |
| 3# | 经过渡电阻接地故障,Rg=30 Ω |
| 4# | 经过渡电阻接地故障,Rg=100 Ω |
), ArticleFig(id=1210986422924866328, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=表1, caption=
电缆模型的故障情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 电缆模型编号 | 故障类型 |
|---|
| 1# | 开路故障 |
| 2# | 短路故障 |
| 3# | 经过渡电阻接地故障,Rg=30 Ω |
| 4# | 经过渡电阻接地故障,Rg=100 Ω |
), ArticleFig(id=1210986423021335324, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Tab.2, caption=
Fault detection results of cable models, figureFileSmall=null, figureFileBig=null, tableContent=
| 电缆模型 | 故障位置 | 故障的阻抗状态 |
|---|
| 1# | 299.7 m | 增大 |
| 2# | 299.7 m | 减小 |
| 3# | 299.7 m | 减小 |
| 4# | 299.7 m | 减小 |
), ArticleFig(id=1210986423142970146, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=表2, caption=
电缆模型的故障检测结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 电缆模型 | 故障位置 | 故障的阻抗状态 |
|---|
| 1# | 299.7 m | 增大 |
| 2# | 299.7 m | 减小 |
| 3# | 299.7 m | 减小 |
| 4# | 299.7 m | 减小 |
), ArticleFig(id=1210986423218467621, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Tab.3, caption=
Fault situation of actual cable, figureFileSmall=null, figureFileBig=null, tableContent=
| 真实电缆编号 | 故障类型 |
|---|
| 5# | 开路故障 |
| 6# | 短路故障 |
| 7# | 经过渡电阻接地故障,Rg=20 Ω |
), ArticleFig(id=1210986423327519528, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=表3, caption=
真实电缆的故障情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 真实电缆编号 | 故障类型 |
|---|
| 5# | 开路故障 |
| 6# | 短路故障 |
| 7# | 经过渡电阻接地故障,Rg=20 Ω |
), ArticleFig(id=1210986423415599915, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=EN, label=Tab.4, caption=
Fault detection results of the actual cables, figureFileSmall=null, figureFileBig=null, tableContent=
| 真实电缆编号 | 故障位置 | 故障的阻抗状态 |
|---|
| 5# | 30.8 m | 增大 |
| 6# | 32.6 m | 减小 |
| 7# | 31.8 m | 减小 |
), ArticleFig(id=1210986423482708781, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667703620825295, language=CN, label=表4, caption=
真实电缆的故障检测结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 真实电缆编号 | 故障位置 | 故障的阻抗状态 |
|---|
| 5# | 30.8 m | 增大 |
| 6# | 32.6 m | 减小 |
| 7# | 31.8 m | 减小 |
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