Article(id=1199644782176862464, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1199644777219191267, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2023.12.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1685289600000, receivedDateStr=2023-05-29, revisedDate=1693324800000, revisedDateStr=2023-08-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1763947204393, onlineDateStr=2025-11-24, pubDate=1703001600000, pubDateStr=2023-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763947204393, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763947204393, creator=13701087609, updateTime=1763947204393, updator=13701087609, issue=Issue{id=1199644777219191267, tenantId=1146029695717560320, journalId=1149653034449285133, year='2023', volume='56', issue='12', pageStart='1', pageEnd='135', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763947203211, creator=13701087609, updateTime=1766563728010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210619277716099586, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1199644777219191267, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210619277716099587, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1199644777219191267, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=9, endPage=16, ext={EN=ArticleExt(id=1199644782646624522, articleId=1199644782176862464, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Influence of conductance loss on low-frequency dielectric properties of high-voltage XLPE submarine cable, columnId=1199644778280350182, journalTitle=Insulating Materials, columnName=Advanced Electrical Materials for Large Capacity Offshore Wind Power Transmission, runingTitle=null, highlight=null, articleAbstract=
With the rapid development of offshore wind power, high-voltage XLPE submarine cables are palying critical role in transmitting electricity in the marine transmission system. In order to investigate the effect of thermal oxygen ageing on the frequency domain dielectric properties of high-voltage XLPE submarine cables, XLPE samples were conducted accelerated ageing experiments at 135℃, and the frequency domain dielectric properties of XLPE samples with different ageing degree were tested. When analyzing the dielectric properties of measured samples, we found that a large amount of conductance loss and polarization loss were superimposed in the low and medium frequency domains, which seriously affected the accuracy of applying frequency domain dielectric properties to assess the ageing state of high-voltage XLPE submarine cable insulation. To slove this problem, a method for separating conductance loss and polarization loss in dielectric response data was deduced. Finally, the effect of conductance loss on the accuracy of model parameter identification was explored, and a characteristic parameter to characterize the ageing degree was proposed. The results show that the frequency domain dielectric curves of high-voltage XLPE submarine cables shift towards high frequency as the ageing progresses, and the low-frequency dispersion phenomenon becomes more apparent. The accuracy of H-N (Havriliak-Negami) model parameter identification can be improved by removing the conductance loss in the imaginary part of complex dielectric constant. The relaxation strength ∆ε and high-frequency dielectric constant ε∞ could characterize the insulation ageing state of high-voltage XLPE submarine cables, which can realize the assessment of insulation ageing for high-voltage XLPE submarine cables.
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随着海上风电的快速发展,高压XLPE海缆在海洋输电系统中承担着传输电能的重任。为了研究热氧老化对高压XLPE海缆频域介电特性的影响,本文在135℃下对XLPE试样进行加速老化试验,分别对不同老化程度的高压海缆XLPE试样进行频域介电特性测试。在分析实测试样介电特性时,发现有大量电导损耗和极化损耗相互叠加于中低频域内,影响了应用频域介电特性评估高压XLPE海缆绝缘老化状态的准确性。针对这一问题,本文推导出分离介电响应数据中电导损耗和极化损耗的方法。最后探究电导损耗对模型参数辨识精度的影响,并提出表征老化程度的特征参数。结果表明:高压XLPE海缆的频域介电曲线随着老化程度加深而向高频方向移动,且低频段内弥散现象越发明显;将复介电常数虚部中的电导损耗去除后能够提高Havriliak-Negami(H-N)模型参数辨识的精度;提取的特征参数弛豫强度∆ε和高频介电常数ε∞能够表征高压海缆XLPE绝缘的老化状态,可实现高压XLPE海缆绝缘老化的评估。
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张涛(1981-),男(汉族),安徽阜阳人,教授,主要研究方向为高电压与绝缘技术、电力系统优化运行与控制技术。
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1Hubei Provincial Engineering Technology Research Center for Power Transmission Line, China Three Gorges University, Yichang 443002, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1211311075228783578, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, authorId=1211311075040039890, language=CN, stringName=张涛, firstName=涛, middleName=null, lastName=张, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1三峡大学 湖北省输电线路工程技术研究中心,湖北 宜昌 443002, bio={"content":"
张涛(1981-),男(汉族),安徽阜阳人,教授,主要研究方向为高电压与绝缘技术、电力系统优化运行与控制技术。
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张涛(1981-),男(汉族),安徽阜阳人,教授,主要研究方向为高电压与绝缘技术、电力系统优化运行与控制技术。
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1三峡大学 湖北省输电线路工程技术研究中心,湖北 宜昌 443002, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1211311074851296193, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, xref=1, ext=[AuthorCompanyExt(id=1211311074863879106, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, companyId=1211311074851296193, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2Shangqiu Power Supply Company, State Grid Hunan Electric Power Co., Ltd., Shangqiu 476000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1211311077191716897, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, authorId=1211311077023944724, language=CN, stringName=张宁, firstName=宁, middleName=null, lastName=张, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2国网河南省电力有限公司商丘供电公司,河南 商丘 476000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1211311074930987978, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, xref=2, ext=[AuthorCompanyExt(id=1211311074939376587, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, companyId=1211311074930987978, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1三峡大学 湖北省输电线路工程技术研究中心,湖北 宜昌 443002, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1211311074851296193, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, xref=1, ext=[AuthorCompanyExt(id=1211311074863879106, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, companyId=1211311074851296193, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Frequency domain dielectric test curves of submarine cable insulation samples with different ageing time, figureFileSmall=3xhcxpCcBfzevM+PmHuSxw==, figureFileBig=x6QYlDZiiF0i8DrdGtx1cQ==, tableContent=null), ArticleFig(id=1211311079095931016, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=图3, caption=
不同老化时间下海缆绝缘试样的频域介电测试曲线, figureFileSmall=3xhcxpCcBfzevM+PmHuSxw==, figureFileBig=x6QYlDZiiF0i8DrdGtx1cQ==, tableContent=null), ArticleFig(id=1211311079154651277, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Fig.4, caption=
Polarization loss and conductance loss curves in imaginary part of complex permittivity of submarine cable insulation samples under different ageing time, figureFileSmall=vzWUkinUpafXHfSs0erl7w==, figureFileBig=f6GGMjLdIJT9Gox3wY3yqA==, tableContent=null), ArticleFig(id=1211311079234343058, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=图4, caption=
不同老化时间下海缆绝缘试样复介电常数虚部的极化损耗和电导损耗曲线, figureFileSmall=vzWUkinUpafXHfSs0erl7w==, figureFileBig=f6GGMjLdIJT9Gox3wY3yqA==, tableContent=null), ArticleFig(id=1211311079343394969, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Fig. 5, caption=
The change of conductance loss and polarization loss of submarine cable insulation samples under different ageing time in low frequency band, figureFileSmall=xJbmnSz4y2CiK73I4PdJRg==, figureFileBig=HbeYrvW+Vmr14Ko4WSmhaw==, tableContent=null), ArticleFig(id=1211311079465029789, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=图5, caption=
不同老化时间下海缆绝缘试样在低频段内的电导损耗和极化损耗变化情况, figureFileSmall=xJbmnSz4y2CiK73I4PdJRg==, figureFileBig=HbeYrvW+Vmr14Ko4WSmhaw==, tableContent=null), ArticleFig(id=1211311079574081700, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Fig.6, caption=
Measured complex permittivity and fitting curves of submarine cable insulation samples under different ageing time, figureFileSmall=jzilAWf0LjRkuTyH8iiNgg==, figureFileBig=lbEIiurtBc4GtXl8jN5p8Q==, tableContent=null), ArticleFig(id=1211311079687327912, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=图6, caption=
不同老化时间下海缆绝缘试样的实测复介电常数及拟合曲线, figureFileSmall=jzilAWf0LjRkuTyH8iiNgg==, figureFileBig=lbEIiurtBc4GtXl8jN5p8Q==, tableContent=null), ArticleFig(id=1211311079792185521, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Fig.7, caption=
Fitting curves of complex dielectric constant of submarine cable insulation samples under different ageing time after removing the conductance loss, figureFileSmall=QJ3ATO4WvfAGhH4fUX7U8Q==, figureFileBig=WvrPhoHDY/T1cHglWvR2IQ==, tableContent=null), ArticleFig(id=1211311079892848823, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=图7, caption=
不同老化时间下海缆绝缘试样在去除电导损耗后的复介电常数拟合曲线, figureFileSmall=QJ3ATO4WvfAGhH4fUX7U8Q==, figureFileBig=WvrPhoHDY/T1cHglWvR2IQ==, tableContent=null), ArticleFig(id=1211311079964151996, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Fig.8, caption=
Fitting images of characteristic parameters of submarine cable samples with different ageing degrees, figureFileSmall=dQErsu1ELHsPl+571j3L+A==, figureFileBig=CsE9Y3bhssY8fzwdxoxUzg==, tableContent=null), ArticleFig(id=1211311080077398208, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=图8, caption=
不同老化程度海缆试样的特征参量拟合图, figureFileSmall=dQErsu1ELHsPl+571j3L+A==, figureFileBig=CsE9Y3bhssY8fzwdxoxUzg==, tableContent=null), ArticleFig(id=1211311081314717889, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Tab.1, caption=
Coincidence degree of fitting for frequency domain dielectric curves of samples, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化时间/h | 未去除电导损耗的拟合重合度 | 去除电导损耗后的拟合重合度 |
|---|
| Hε′ | Hε″ | Hε′ | Hε″ |
|---|
| 0 | 0.990 | 0.859 | 0.988 | 0.964 |
| 144 | 0.985 | 0.737 | 0.996 | 0.942 |
| 288 | 0.977 | 0.549 | 0.997 | 0.951 |
| 576 | 0.955 | 0.324 | 0.992 | 0.974 |
), ArticleFig(id=1211311081411186885, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=表1, caption=
试样频域介电曲线的拟合重合度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化时间/h | 未去除电导损耗的拟合重合度 | 去除电导损耗后的拟合重合度 |
|---|
| Hε′ | Hε″ | Hε′ | Hε″ |
|---|
| 0 | 0.990 | 0.859 | 0.988 | 0.964 |
| 144 | 0.985 | 0.737 | 0.996 | 0.942 |
| 288 | 0.977 | 0.549 | 0.997 | 0.951 |
| 576 | 0.955 | 0.324 | 0.992 | 0.974 |
), ArticleFig(id=1211311081520238794, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Tab.2, caption=
H-N parameter identification results, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化时间/h | EAB/% | ε∞ | ∆ε | α | β | τ |
|---|
| 0 | 515.85 | 2.582 | 0.388 | 0.268 | 0.996 | 23.948 |
| 144 | 485.65 | 2.651 | 0.530 | 0.307 | 1.000 | 18.693 |
| 288 | 345.56 | 2.833 | 0.862 | 0.344 | 0.893 | 101.491 |
| 576 | 255.64 | 2.968 | 1.242 | 0.316 | 0.977 | 205.576 |
), ArticleFig(id=1211311081620902098, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=表2, caption=
H-N参数辨识结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化时间/h | EAB/% | ε∞ | ∆ε | α | β | τ |
|---|
| 0 | 515.85 | 2.582 | 0.388 | 0.268 | 0.996 | 23.948 |
| 144 | 485.65 | 2.651 | 0.530 | 0.307 | 1.000 | 18.693 |
| 288 | 345.56 | 2.833 | 0.862 | 0.344 | 0.893 | 101.491 |
| 576 | 255.64 | 2.968 | 1.242 | 0.316 | 0.977 | 205.576 |
), ArticleFig(id=1211311081704788180, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=EN, label=Tab.3, caption=
Functional relationship between characteristic parameters and ageing time (T), figureFileSmall=null, figureFileBig=null, tableContent=
| 特征参数 | 拟合函数关系式 | 拟合度 |
|---|
| ε∞ | ε∞=2.582 6+6.984×10-4(T) | 0.961 |
| ∆ε | ∆ε=0.368 8+1.531×10-3(T) | 0.985 |
), ArticleFig(id=1211311081780285655, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644782176862464, language=CN, label=表3, caption=
特征参数与老化时间(T)之间的函数关系
, figureFileSmall=null, figureFileBig=null, tableContent=
| 特征参数 | 拟合函数关系式 | 拟合度 |
|---|
| ε∞ | ε∞=2.582 6+6.984×10-4(T) | 0.961 |
| ∆ε | ∆ε=0.368 8+1.531×10-3(T) | 0.985 |
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