Article(id=1199644780151009795, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1199644777219191267, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2023.12.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1676908800000, receivedDateStr=2023-02-21, revisedDate=1680105600000, revisedDateStr=2023-03-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1763947203910, onlineDateStr=2025-11-24, pubDate=1703001600000, pubDateStr=2023-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763947203910, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763947203910, creator=13701087609, updateTime=1763947203910, 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=54, endPage=62, ext={EN=ArticleExt(id=1199644780457193999, articleId=1199644780151009795, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Research on characteristics and mechanism of streamer branching in alternative gas-to-liquid transformer oil, columnId=1199644778280350182, journalTitle=Insulating Materials, columnName=Advanced Electrical Materials for Large Capacity Offshore Wind Power Transmission, runingTitle=null, highlight=null, articleAbstract=
In this paper, the heterogeneous non-naphthenic transformer oil based on natural gas-to-liquid technology and traditional naphthenic transformer oil were used as research object. The streamer branching patterns in oil samples in the 25 mm point-to-plate electrode system was observed under positive lightning impulse voltage. The streamer discharge images were conducted multifractal analysis to obtain the multifractal parameters as the classification and evaluation index of streamer branching morphology. The results show that when the applied voltage is lower than the accelerated voltage, the streamer branching process in the two oil samples can be classified as a two-stage model dominated by the steady growth of side branch and main branch. When the applied voltage is higher than the accelerated voltage, the streamer branching process in naphthenic oil is a three-stage model, each stage dominated by steady growth of side branch, steady growth of main branch, and rapid growth of main branch, respectively, and the streamer branching process in gas-to-liquid transformer oil only includes two stages, which are steady growth stage of main branch and rapid growth stage of main branch. Further theoretical analysis shows that the competition between space charge and primary electric field is distorted due to the higher ionization energy of gas-to-liquid transformer oil components, which is the main reason for the abrupt change of streamer branching model in gas-to-liquid transformer oil under accelerating voltage.
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以基于天然气制油技术的异构非环烷基变压器油和传统的环烷基变压器油作为研究对象,在正极性雷电冲击电压下对25 mm针-板电极结构中的油中流注分叉形态进行了观测。对获取的流注放电图像进行多重分形分析,求取多重分形参量作为流注分叉模式的分类评价指标。结果表明:当外加电压低于加速电压时,两种油样中流注分叉过程均可归为侧枝和主枝平稳增长分别占主导的两阶段模型;当外加电压高于加速电压时,环烷基油中流注分叉过程为侧枝平稳增长、主枝平稳增长和跃迁式增长分别占主导的三阶段模型,而气制油中流注分叉过程只包含主枝平稳增长和跃迁式增长两个阶段。进一步的理论分析表明,气制油成分较高的电离能导致空间电荷与原生电场的博弈效应减弱是造成其在加速电压下流注分叉模型发生突变的主要原因。
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卢武(1991-),男(汉族),安徽亳州人,副教授,主要研究方向为液相放电机理与高压绝缘数值计算。
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张浩(1998-),男(汉族),山东日照人,硕士生,主要研究方向为液体绝缘材料放电机理与高电压试验技术。
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1School of Electric Engineering, Shanghai University of Electric Power, Shanghai 200090, China
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1上海电力大学 电气工程学院,上海 200090
2国网日照供电公司,山东 日照 276800, bio={"content":"
张浩(1998-),男(汉族),山东日照人,硕士生,主要研究方向为液体绝缘材料放电机理与高电压试验技术。
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张浩(1998-),男(汉族),山东日照人,硕士生,主要研究方向为液体绝缘材料放电机理与高电压试验技术。
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3国家电网有限公司华东分部,上海 200120, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1211311072716386992, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, xref=3, ext=[AuthorCompanyExt(id=1211311072728969905, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, companyId=1211311072716386992, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1School of Electric Engineering, Shanghai University of Electric Power, Shanghai 200090, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1211311073559442168, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, authorId=1211311073408447207, language=CN, stringName=许红运, firstName=红运, middleName=null, lastName=许, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Schematic diagram of streamer discharge test system under lightning impulse voltage, figureFileSmall=f/E4JeNDjGWS8QCCH6f5Jg==, figureFileBig=uKsKR2YzYamXIlwvj904hg==, tableContent=null), ArticleFig(id=1211311077028131707, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图1, caption=
雷电冲击电压下流注放电观测平台示意图, figureFileSmall=f/E4JeNDjGWS8QCCH6f5Jg==, figureFileBig=uKsKR2YzYamXIlwvj904hg==, tableContent=null), ArticleFig(id=1211311077124600704, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.2, caption=
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Typical example of streamer multifractal spectrum, figureFileSmall=5lC8rICvkvy6o9vrx1I/2g==, figureFileBig=rTI5iOYVTHyk41jPK6Txkw==, tableContent=null), ArticleFig(id=1211311077405619079, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图3, caption=
流注多重分形谱示例, figureFileSmall=5lC8rICvkvy6o9vrx1I/2g==, figureFileBig=rTI5iOYVTHyk41jPK6Txkw==, tableContent=null), ArticleFig(id=1211311077489505160, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.4, caption=
The average propagation velocity of streamer in two oil samples under positive lightning impulse voltage, figureFileSmall=p/0x/zjhXtWEhxvEFD4b3g==, figureFileBig=t7z38Gseznj/ctkNTancvw==, tableContent=null), ArticleFig(id=1211311077556614028, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图4, caption=
正极性雷电冲击电压下两种油样中流注平均传播速度, figureFileSmall=p/0x/zjhXtWEhxvEFD4b3g==, figureFileBig=t7z38Gseznj/ctkNTancvw==, tableContent=null), ArticleFig(id=1211311077644694416, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.5, caption=
Typical developing process of slow streamer discharge in two oil samples, figureFileSmall=YR1Pj7pdC7bFA1tyq0ctnA==, figureFileBig=kHy0l/LbY8n46VG+VlT7/Q==, tableContent=null), ArticleFig(id=1211311077825049493, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图5, caption=
两种油中典型的慢流注放电发展过程, figureFileSmall=YR1Pj7pdC7bFA1tyq0ctnA==, figureFileBig=kHy0l/LbY8n46VG+VlT7/Q==, tableContent=null), ArticleFig(id=1211311077917324183, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.6, caption=
Multifractal parameters during the branching of slow streamers, figureFileSmall=7+vNXbmzw6G/URaOYi5xcQ==, figureFileBig=ABrYdER8fgw205CkG/Cq7g==, tableContent=null), ArticleFig(id=1211311078017987482, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图6, caption=
慢流注分叉过程中的多重分形特征, figureFileSmall=7+vNXbmzw6G/URaOYi5xcQ==, figureFileBig=ABrYdER8fgw205CkG/Cq7g==, tableContent=null), ArticleFig(id=1211311078152205213, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.7, caption=
Typical developing process of fast streamer discharge in two oil samples, figureFileSmall=9Lr9WW3vk9+9CtrTTbZqCA==, figureFileBig=iMzDIaLsfo+pObC6nvUHRQ==, tableContent=null), ArticleFig(id=1211311078257062818, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图7, caption=
两种油中典型的快流注放电发展过程, figureFileSmall=9Lr9WW3vk9+9CtrTTbZqCA==, figureFileBig=iMzDIaLsfo+pObC6nvUHRQ==, tableContent=null), ArticleFig(id=1211311078345143206, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.8, caption=
Multi-fractal parameters during the branching of fast streamers, figureFileSmall=gDTDxRKXHkeQS+Fsnob2Bg==, figureFileBig=Tr7zr+8KeDrciCQ6Ocq0SQ==, tableContent=null), ArticleFig(id=1211311078441612199, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图8, caption=
快流注分叉过程中的多重分形特征, figureFileSmall=gDTDxRKXHkeQS+Fsnob2Bg==, figureFileBig=Tr7zr+8KeDrciCQ6Ocq0SQ==, tableContent=null), ArticleFig(id=1211311078559052713, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.9, caption=
The general evolutionary model of streamer stage, figureFileSmall=qbU6O7hBHMpi5YGx4YMU6g==, figureFileBig=6hVtLfa0MsiwPE/XSUgv3w==, tableContent=null), ArticleFig(id=1211311078663910317, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图9, caption=
流注分叉阶段的一般化演化模型, figureFileSmall=qbU6O7hBHMpi5YGx4YMU6g==, figureFileBig=6hVtLfa0MsiwPE/XSUgv3w==, tableContent=null), ArticleFig(id=1211311078756185009, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Fig.10, caption=
Schematic diagram of branching mechanism of streamers, figureFileSmall=Yb6F/n8OCbRQ7PicnCdnuQ==, figureFileBig=1pxsFg15rLfO/lmzbeuCCw==, tableContent=null), ArticleFig(id=1211311078848459698, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=图10, caption=
流注分叉机理示意图, figureFileSmall=Yb6F/n8OCbRQ7PicnCdnuQ==, figureFileBig=1pxsFg15rLfO/lmzbeuCCw==, tableContent=null), ArticleFig(id=1211311078911374261, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=EN, label=Tab.1, caption=
Classification and summary of multifractal parameters of streamer in two oil samples, figureFileSmall=null, figureFileBig=null, tableContent=
| 油样 | 电压等级/kV | 时间/μs | 传播速度/(km/s) | 多重分形参数 | 流注分叉模型 |
|---|
| f(α)max | Δf | Δα |
|---|
| 矿物油 | 140 | 2 | 1.68 | 1.36 | 0.36 | 0.25 | 球I型 |
| 10 | 3.62 | 1.59 | 0.32 | 0.25 | 球Ⅱ型 |
| 180 | 2 | 2.49 | 1.39 | 0.39 | 0.25 | 球I型 |
| 8 | 3.64 | 1.67 | 0.33 | 0.26 | 球Ⅱ型 |
| 220 | 0.6 | 2.50 | 1.20 | 0.37 | 0.26 | 球I型 |
| 1.0 | 15.10 | 1.33 | 0.51 | 0.25 | 圆柱I型 |
| 1.6 | 17.45 | 1.49 | 0.54 | 0.26 | 圆柱Ⅱ型 |
| 260 | 0.3 | 6.50 | 1.21 | 0.38 | 0.25 | 球I型 |
| 0.6 | 20.50 | 1.36 | 0.53 | 0.26 | 圆柱I型 |
| 0.8 | 86.90 | 1.52 | 0.55 | 0.26 | 圆柱Ⅱ型 |
| 气制油 | 120 | 2 | 1.99 | 1.34 | 0.37 | 0.25 | 球I型 |
| 9 | 2.21 | 1.58 | 0.27 | 0.26 | 球Ⅱ型 |
| 150 | 2 | 1.64 | 1.36 | 0.40 | 0.25 | 球I型 |
| 7 | 2.49 | 1.62 | 0.25 | 0.26 | 球Ⅱ型 |
| 210 | 0.48 | 19.00 | 1.19 | 0.37 | 0.26 | 球I型 |
| 0.64 | 189.88 | 1.47 | 0.52 | 0.25 | 圆柱Ⅱ型 |
| 250 | 0.35 | 37.40 | 1.21 | 0.38 | 0.25 | 球I型 |
| 0.45 | 247.20 | 1.49 | 0.54 | 0.26 | 圆柱Ⅱ型 |
), ArticleFig(id=1211311079020426170, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199644780151009795, language=CN, label=表1, caption=
两种油样中流注多重分形参数的分类汇总
, figureFileSmall=null, figureFileBig=null, tableContent=
| 油样 | 电压等级/kV | 时间/μs | 传播速度/(km/s) | 多重分形参数 | 流注分叉模型 |
|---|
| f(α)max | Δf | Δα |
|---|
| 矿物油 | 140 | 2 | 1.68 | 1.36 | 0.36 | 0.25 | 球I型 |
| 10 | 3.62 | 1.59 | 0.32 | 0.25 | 球Ⅱ型 |
| 180 | 2 | 2.49 | 1.39 | 0.39 | 0.25 | 球I型 |
| 8 | 3.64 | 1.67 | 0.33 | 0.26 | 球Ⅱ型 |
| 220 | 0.6 | 2.50 | 1.20 | 0.37 | 0.26 | 球I型 |
| 1.0 | 15.10 | 1.33 | 0.51 | 0.25 | 圆柱I型 |
| 1.6 | 17.45 | 1.49 | 0.54 | 0.26 | 圆柱Ⅱ型 |
| 260 | 0.3 | 6.50 | 1.21 | 0.38 | 0.25 | 球I型 |
| 0.6 | 20.50 | 1.36 | 0.53 | 0.26 | 圆柱I型 |
| 0.8 | 86.90 | 1.52 | 0.55 | 0.26 | 圆柱Ⅱ型 |
| 气制油 | 120 | 2 | 1.99 | 1.34 | 0.37 | 0.25 | 球I型 |
| 9 | 2.21 | 1.58 | 0.27 | 0.26 | 球Ⅱ型 |
| 150 | 2 | 1.64 | 1.36 | 0.40 | 0.25 | 球I型 |
| 7 | 2.49 | 1.62 | 0.25 | 0.26 | 球Ⅱ型 |
| 210 | 0.48 | 19.00 | 1.19 | 0.37 | 0.26 | 球I型 |
| 0.64 | 189.88 | 1.47 | 0.52 | 0.25 | 圆柱Ⅱ型 |
| 250 | 0.35 | 37.40 | 1.21 | 0.38 | 0.25 | 球I型 |
| 0.45 | 247.20 | 1.49 | 0.54 | 0.26 | 圆柱Ⅱ型 |
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