Article(id=1198665393117168343, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198665390676083408, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2023.03.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1642003200000, receivedDateStr=2022-01-13, revisedDate=1646755200000, revisedDateStr=2022-03-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1763713699845, onlineDateStr=2025-11-21, pubDate=1679241600000, pubDateStr=2023-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763713699845, onlineIssueDateStr=2025-11-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763713699845, creator=13701087609, updateTime=1763713699845, updator=13701087609, issue=Issue{id=1198665390676083408, tenantId=1146029695717560320, journalId=1149653034449285133, year='2023', volume='56', issue='3', pageStart='1', pageEnd='121', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763713699263, creator=13701087609, updateTime=1766563510720, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210618366327386648, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198665390676083408, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210618366327386649, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198665390676083408, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=54, endPage=60, ext={EN=ArticleExt(id=1198665394262213363, articleId=1198665393117168343, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Rapid evaluation method of oil-paper insulation damp condition based on grey correlation and time-frequency domain dielectric response, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
The equivalent extended Debye model of oil-paper insulation in the damp state no longer has linear characteristics, which makes the evaluation method of oil-paper insulation based on time-frequency conversion have errors. In this paper, the advantages of time domain and frequency domain dielectric spectroscopy were integrated, and the grey correlation algorithm was used to construct the evaluation model of oil-paper insulation damp condition on the basis of the time and frequency domain dielectric response parameters. Firstly, oil-paper insulation samples with different moisture content were prepared, and the influence of moisture and temperature on the polarization and depolarization current (PDC) and frequency domain spectroscopy (FDS) curves was analyzed. Furthermore, the characteristic parameters of PDC and FDS curves under different damp conditions were extracted. On this basis, the grey correlation algorithm was used to integrate the time and frequency domain dielectric characteristic parameters of oil-paper insulation to obtain its standardized reference vector. Finally, the accuracy of evaluation model was verified by laboratory sample data and field transformer data, which provides a new method for warning and diagnosis of transformer early fault.
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受潮状态下油纸绝缘的等效扩展Debye模型不再具有线性特性,使得基于时频转换的油纸绝缘状态评估方法存在一定误差。本文综合时域与频域介电谱的优点,在获取时-频域介电响应参数的基础上使用灰色关联算法构建油纸绝缘受潮状态评估模型。首先制备不同含水量的油纸绝缘样品,分析了受潮和温度对极化去极化电流(polarization and depolarization current,PDC)以及频域介电谱(frequency domain spectroscopy,FDS)曲线的影响,进一步提取不同受潮状态下PDC和FDS曲线的特征参数。在此基础上,采用灰色关联算法整合油纸绝缘时频域介电特征量得到其规范化后的参考向量。最后,分别通过实验室样品数据和现场变压器数据验证了评估模型的准确性,为变压器早期故障预警与诊断提供了新方法。
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穆海宝(1982-),男(汉族),河北辛集人,教授,博士生导师,主要从事电力设备状态检测与评估技术、电气设备绝缘耐电性能提升技术以及微放电等离子体基础与应用技术的研究。
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姚欢民(1998-),男(汉族),内蒙古包头人,博士生,主要从事电力设备状态监测及故障诊断技术的研究。
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1西安交通大学 电力设备电气绝缘国家重点实验室,陕西 西安 710049, bio={"content":"
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1State Key Laboratory of Electrical Insulation and Power Equipment, Xi′an Jiaotong University, Xi′an 710049, China), AuthorCompanyExt(id=1210980018637902465, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, companyId=1210980018625319551, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1西安交通大学 电力设备电气绝缘国家重点实验室,陕西 西安 710049)]), AuthorCompany(id=1210980018759537289, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, xref=2, ext=[AuthorCompanyExt(id=1210980018767925899, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, companyId=1210980018759537289, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2State Grid Ningxia Power Supply Company, Yinchuan 750000, China), AuthorCompanyExt(id=1210980018776314508, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, companyId=1210980018759537289, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2国网宁夏电力有限公司,宁夏 银川 750000)])], figs=[ArticleFig(id=1210980022702183214, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Fig.1, caption=
Insulation paper samples, figureFileSmall=4AWcUOC9ubbPfVJbHVnJ1A==, figureFileBig=yx1+KwTfSd7MDPw/6ckb2A==, tableContent=null), ArticleFig(id=1210980022798652206, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=图1, caption=
绝缘纸样品, figureFileSmall=4AWcUOC9ubbPfVJbHVnJ1A==, figureFileBig=yx1+KwTfSd7MDPw/6ckb2A==, tableContent=null), ArticleFig(id=1210980022903509809, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Fig.2, caption=
PDC curves of oil-paper insulation samples with different moisture content, figureFileSmall=PR/H6ea59Jgecmkl4s4UQQ==, figureFileBig=udhF9XeSJxxG/qdyFIPE4A==, tableContent=null), ArticleFig(id=1210980023012561719, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=图2, caption=
不同含水量油纸绝缘样品的PDC曲线, figureFileSmall=PR/H6ea59Jgecmkl4s4UQQ==, figureFileBig=udhF9XeSJxxG/qdyFIPE4A==, tableContent=null), ArticleFig(id=1210980023100642105, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Fig.3, caption=
The C*-f curves of oil-paper insulation samples with different moisture content, figureFileSmall=p+4Sl+v2mIdJyDgVCx41hA==, figureFileBig=xjvngw8YDs4AkJqkHoLehw==, tableContent=null), ArticleFig(id=1210980023230665535, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=图3, caption=
不同含水量油纸绝缘样品的C*-f曲线, figureFileSmall=p+4Sl+v2mIdJyDgVCx41hA==, figureFileBig=xjvngw8YDs4AkJqkHoLehw==, tableContent=null), ArticleFig(id=1210980023339717445, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Fig.4, caption=
PDC curves of samples with different degrees of moisture, figureFileSmall=ahbt5GHkjMu5lpqrBBGpTg==, figureFileBig=nSliZwGnl/wu/MMlikLz1Q==, tableContent=null), ArticleFig(id=1210980023444575050, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=图 4, caption=
不同受潮程度样品的PDC曲线, figureFileSmall=ahbt5GHkjMu5lpqrBBGpTg==, figureFileBig=nSliZwGnl/wu/MMlikLz1Q==, tableContent=null), ArticleFig(id=1210980023541044042, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Fig.5, caption=
The C*-f curves of samples with different degrees of moisture, figureFileSmall=5gPu9YM3NC9nvnBidrnywQ==, figureFileBig=sikT1kPKT65PpdgkRDyBJg==, tableContent=null), ArticleFig(id=1210980023658484557, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=图 5, caption=
不同受潮程度样品的C*-f曲线, figureFileSmall=5gPu9YM3NC9nvnBidrnywQ==, figureFileBig=sikT1kPKT65PpdgkRDyBJg==, tableContent=null), ArticleFig(id=1210980023775925073, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Tab.1, caption=
The integral value of PDC curves, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 含水量/% |
|---|
| 1.07 | 2.05 | 3.06 | 4.08 |
|---|
| 极化电流积分值 | 1.195×10-7 | 1.914×10-7 | 2.383×10-7 | 3.325×10-7 |
| 去极化电流积分值 | 2.796×10-8 | 5.426×10-8 | 1.225×10-7 | 1.704×10-7 |
), ArticleFig(id=1210980023864005462, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=表1, caption=
PDC曲线积分值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 含水量/% |
|---|
| 1.07 | 2.05 | 3.06 | 4.08 |
|---|
| 极化电流积分值 | 1.195×10-7 | 1.914×10-7 | 2.383×10-7 | 3.325×10-7 |
| 去极化电流积分值 | 2.796×10-8 | 5.426×10-8 | 1.225×10-7 | 1.704×10-7 |
), ArticleFig(id=1210980023952085849, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Tab.2, caption=
The integral value of real and imaginary parts of complex capacitance, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 含水量/% |
|---|
| 1.07 | 2.05 | 3.06 | 4.08 |
|---|
| 实部积分值 | 8.31×10-9 | 8.33×10-9 | 8.35×10-9 | 8.38×10-9 |
| 虚部积分值 | 2.44×10-10 | 2.71×10-10 | 3.56×10-10 | 5.26×10-10 |
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复电容实部和虚部曲线的积分值
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| 项目 | 含水量/% |
|---|
| 1.07 | 2.05 | 3.06 | 4.08 |
|---|
| 实部积分值 | 8.31×10-9 | 8.33×10-9 | 8.35×10-9 | 8.38×10-9 |
| 虚部积分值 | 2.44×10-10 | 2.71×10-10 | 3.56×10-10 | 5.26×10-10 |
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Normalized reference vector, figureFileSmall=null, figureFileBig=null, tableContent=
| 含水量/% | 参考向量 | x0(1) | x0(2) | x0(3) | x0(4) |
|---|
| 1.07 | X0(1) | 1 | 0.232 | 0.067 6 | 0 |
| 2.05 | X0(2) | 1 | 0.283 | 0.042 2 | 0 |
| 3.06 | X0(3) | 1 | 0.513 | 0.033 6 | 0 |
| 4.08 | X0(4) | 1 | 0.511 | 0.023 7 | 0 |
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归一化后的参考向量
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| 含水量/% | 参考向量 | x0(1) | x0(2) | x0(3) | x0(4) |
|---|
| 1.07 | X0(1) | 1 | 0.232 | 0.067 6 | 0 |
| 2.05 | X0(2) | 1 | 0.283 | 0.042 2 | 0 |
| 3.06 | X0(3) | 1 | 0.513 | 0.033 6 | 0 |
| 4.08 | X0(4) | 1 | 0.511 | 0.023 7 | 0 |
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The comparison vector of oil-paper insulation samples, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | 比较向量 |
|---|
| xi(1) | xi(2) | xi(3) | xi(4) |
|---|
| 样品1 | 1 | 0.242 | 0.063 6 | 0 |
| 样品2 | 1 | 0.279 | 0.042 7 | 0 |
| 样品3 | 1 | 0.531 | 0.033 7 | 0 |
| 样品4 | 1 | 0.508 | 0.023 4 | 0 |
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油纸绝缘样品比较向量
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| 样品 | 比较向量 |
|---|
| xi(1) | xi(2) | xi(3) | xi(4) |
|---|
| 样品1 | 1 | 0.242 | 0.063 6 | 0 |
| 样品2 | 1 | 0.279 | 0.042 7 | 0 |
| 样品3 | 1 | 0.531 | 0.033 7 | 0 |
| 样品4 | 1 | 0.508 | 0.023 4 | 0 |
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Grey relational grade between sample and reference vector, figureFileSmall=null, figureFileBig=null, tableContent=
| 含水量 | 参考向量 | 样品1关联度 | 样品2关联度 | 样品3关联度 | 样品4关联度 |
|---|
| 1.07% | X0(1) | 0.991 | 0.939 | 0.832 | 0.837 |
| 2.05% | X0(2) | 0.931 | 0.994 | 0.833 | 0.838 |
| 3.06% | X0(3) | 0.829 | 0.838 | 0.989 | 0.984 |
| 4.08% | X0(4) | 0.828 | 0.839 | 0.967 | 0.995 |
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样品与参考向量的关联度
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| 含水量 | 参考向量 | 样品1关联度 | 样品2关联度 | 样品3关联度 | 样品4关联度 |
|---|
| 1.07% | X0(1) | 0.991 | 0.939 | 0.832 | 0.837 |
| 2.05% | X0(2) | 0.931 | 0.994 | 0.833 | 0.838 |
| 3.06% | X0(3) | 0.829 | 0.838 | 0.989 | 0.984 |
| 4.08% | X0(4) | 0.828 | 0.839 | 0.967 | 0.995 |
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The parameters of transformer from different companies, figureFileSmall=null, figureFileBig=null, tableContent=
| 变压器 | 运行年限 | 工频介损/% | 电容量/pF |
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| T1 | 6年 | 0.756 | 252 |
| T2 | 13年 | 0.839 | 268 |
| T3 | 15年 | 0.987 | 384 |
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不同厂家变压器相关参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变压器 | 运行年限 | 工频介损/% | 电容量/pF |
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| T1 | 6年 | 0.756 | 252 |
| T2 | 13年 | 0.839 | 268 |
| T3 | 15年 | 0.987 | 384 |
), ArticleFig(id=1210980024996467578, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Tab.7, caption=
The comparison vector of transformers, figureFileSmall=null, figureFileBig=null, tableContent=
| 比较向量 | xi(1) | xi(2) | xi(3) | xi(4) |
|---|
| X1(T1) | 1 | 0.288 | 0.042 8 | 0 |
| X2(T2) | 1 | 0.486 | 0.021 4 | 0 |
| X3(T3) | 1 | 0.497 | 0.022 4 | 0 |
), ArticleFig(id=1210980025151656830, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=表7, caption=
变压器比较向量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 比较向量 | xi(1) | xi(2) | xi(3) | xi(4) |
|---|
| X1(T1) | 1 | 0.288 | 0.042 8 | 0 |
| X2(T2) | 1 | 0.486 | 0.021 4 | 0 |
| X3(T3) | 1 | 0.497 | 0.022 4 | 0 |
), ArticleFig(id=1210980025256514435, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=EN, label=Tab.8, caption=
Grey relational grade, figureFileSmall=null, figureFileBig=null, tableContent=
| 含水量 | 参考向量 | X1关联度 | X2关联度 | X3关联度 |
|---|
| 1.07% | X0(1) | 0.927 | 0.835 | 0.833 |
| 2.05% | X0(2) | 0.989 | 0.836 | 0.833 |
| 3.06% | X0(3) | 0.831 | 0.946 | 0.962 |
| 4.08% | X0(4) | 0.831 | 0.954 | 0.972 |
), ArticleFig(id=1210980025365566340, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665393117168343, language=CN, label=表8, caption=
灰色关联度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 含水量 | 参考向量 | X1关联度 | X2关联度 | X3关联度 |
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| 1.07% | X0(1) | 0.927 | 0.835 | 0.833 |
| 2.05% | X0(2) | 0.989 | 0.836 | 0.833 |
| 3.06% | X0(3) | 0.831 | 0.946 | 0.962 |
| 4.08% | X0(4) | 0.831 | 0.954 | 0.972 |
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