Article(id=1209928225266995742, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1209928218329616824, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2024.05.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1685894400000, receivedDateStr=2023-06-05, revisedDate=1692806400000, revisedDateStr=2023-08-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1766398968282, onlineDateStr=2025-12-22, pubDate=1716134400000, pubDateStr=2024-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766398968282, onlineIssueDateStr=2025-12-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766398968282, creator=13701087609, updateTime=1766398968282, updator=13701087609, issue=Issue{id=1209928218329616824, tenantId=1146029695717560320, journalId=1149653034449285133, year='2024', volume='57', issue='5', pageStart='1', pageEnd='124', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766398966629, creator=13701087609, updateTime=1766563901766, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210620006501585415, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1209928218329616824, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210620006501585416, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1209928218329616824, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=116, endPage=124, ext={EN=ArticleExt(id=1209928225657066031, articleId=1209928225266995742, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Research on partial discharge propagation characteristics of transformer and optimization of monitoring points, columnId=1209928219172671930, journalTitle=Insulating Materials, columnName=Special Issue on High-performance Transformer Insulation, runingTitle=null, highlight=null, articleAbstract=
The partial discharge ultrasonic signal attenuates severely on power transformer equipment shell, resulting in larger differences in the partial discharge signals received by different positions of sensors, which greatly affects its measurement accuracy and detection efficiency in field application. In this paper, a partition model of oil-immersed power transformer was built using finite element simulation software, the partitioning rule of partial discharge ultrasonic signal on the main surface of oil tank was obtained, and the transformer spatial sound pressure and partition sound pressure distribution maps were formed. On the basis of monitoring point optimization method of Pearson correlation coefficient and K-means clustering, the monitoring points with the best sensitivity of spatial sound pressure and partition sound pressure were preferably selected and compared. The results show that the average detection efficiency of the A-level monitoring points is 86.0%, which realizes the efficient detection of transformer partial discharge and provides a new method for selecting the placement points of ultrasonic sensors.
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局部放电超声波信号在电力变压器设备外壳上衰减严重,导致不同位置传感器接收的局部放电信号存在巨大差异,极大地影响了其在现场应用时的测量精度和检测效率。为此,本文采用有限元仿真软件建立油浸式电力变压器分区模型,得到局部放电超声波信号在油箱主面的分区规律,并形成变压器空间声压和分区声压的分布图谱。基于Pearson相关系数与K-means聚类的监测点位优化方法,优选出空间声压与分区声压敏感度最佳的监测点位,并进行对比测试。结果表明:A等级监测点的平均检测效率为86.0%,实现了变压器局部放电的高效检测,为超声波传感器布置点位的选择提供了新方法。
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K-means聚类)], refs=[Reference(id=1217500256615449170, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, doi=null, pmid=null, pmcid=null, year=2022, volume=55, issue=7, pageStart=1, pageEnd=9, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=高树国, 赵军, 乔辉, journalName=绝缘材料, refType=null, unstructuredReference=高树国,赵军,乔辉,等.换流变压器局部放电检测与特性研究综述[J].
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Multipath propagation phenomenon of partial discharge ultrasonic signal in transformer, figureFileSmall=0f8WrLJBUgay13vbo35vnw==, figureFileBig=OOhpbWRhGeDdDrkGQ6m5sQ==, tableContent=null), ArticleFig(id=1217500250084917680, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图1, caption=
变压器内局放超声波信号多路径传播现象, figureFileSmall=0f8WrLJBUgay13vbo35vnw==, figureFileBig=OOhpbWRhGeDdDrkGQ6m5sQ==, tableContent=null), ArticleFig(id=1217500250198163894, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.2, caption=
Simplified model of oil-immersed transformer, figureFileSmall=WHboIQX3tj+EANe0cCjxBA==, figureFileBig=j8Gb9qE7vay3hhSLy6mk9Q==, tableContent=null), ArticleFig(id=1217500250290438587, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图2, caption=
油浸式变压器简化模型, figureFileSmall=WHboIQX3tj+EANe0cCjxBA==, figureFileBig=j8Gb9qE7vay3hhSLy6mk9Q==, tableContent=null), ArticleFig(id=1217500250378518977, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.3, caption=
Partial discharge monitoring schematic, figureFileSmall=PTIB27IQNuJ7aUecWqZqCw==, figureFileBig=CBnw6X4yBb75JdLQRQSYMg==, tableContent=null), ArticleFig(id=1217500250512736709, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图3, caption=
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Change of peak sound pressure ratio with distance, figureFileSmall=ORCl5hQxasXfeQAqLvWLRg==, figureFileBig=/1vU4B0jDZjH37PXU2p/3g==, tableContent=null), ArticleFig(id=1217500251989131729, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图4, caption=
声压峰值比随距离的变化, figureFileSmall=ORCl5hQxasXfeQAqLvWLRg==, figureFileBig=/1vU4B0jDZjH37PXU2p/3g==, tableContent=null), ArticleFig(id=1217500252102377939, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.5, caption=
Transformer tank xoz surface area division, figureFileSmall=8eYzpasCDsZLXVY9TSHgSw==, figureFileBig=uT4cXZMOs8lw1tYXkBbvkw==, tableContent=null), ArticleFig(id=1217500252236595673, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图5, caption=
变压器油箱xoz面区域划分, figureFileSmall=8eYzpasCDsZLXVY9TSHgSw==, figureFileBig=uT4cXZMOs8lw1tYXkBbvkw==, tableContent=null), ArticleFig(id=1217500252341453278, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.6, caption=
Time domain waveform of PD pulse signal, figureFileSmall=gzJouWRM2yIt6yr8sgkrGQ==, figureFileBig=HRzX8W8NnJaq7li6uXlEug==, tableContent=null), ArticleFig(id=1217500252450505184, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图6, caption=
局放脉冲信号时域波形, figureFileSmall=gzJouWRM2yIt6yr8sgkrGQ==, figureFileBig=HRzX8W8NnJaq7li6uXlEug==, tableContent=null), ArticleFig(id=1217500252546974181, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.7, caption=
PD source positions in transformer, figureFileSmall=kogY7G+YWVxF/A3IHXVgJA==, figureFileBig=FvArJ41Z1OEC1P8QAIiP6A==, tableContent=null), ArticleFig(id=1217500252614083050, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图7, caption=
变压器内局放源位置, figureFileSmall=kogY7G+YWVxF/A3IHXVgJA==, figureFileBig=FvArJ41Z1OEC1P8QAIiP6A==, tableContent=null), ArticleFig(id=1217500252735717866, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.8, caption=
Spatial sound pressure distribution diagram, figureFileSmall=GBtPvoX2eHdqTop0Uh1XYQ==, figureFileBig=ev9891ogqq6dAV/+tirnTg==, tableContent=null), ArticleFig(id=1217500252836381166, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图8, caption=
空间声压分布图, figureFileSmall=GBtPvoX2eHdqTop0Uh1XYQ==, figureFileBig=ev9891ogqq6dAV/+tirnTg==, tableContent=null), ArticleFig(id=1217500252924461552, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.9, caption=
Longitudinal comparison of partition sound pressure, figureFileSmall=u+onwK6KUyHEUdQr8aUwjw==, figureFileBig=ycXLrI58Z3ytZbSjv9KfHw==, tableContent=null), ArticleFig(id=1217500253012541939, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图9, caption=
分区声压纵向对比, figureFileSmall=u+onwK6KUyHEUdQr8aUwjw==, figureFileBig=ycXLrI58Z3ytZbSjv9KfHw==, tableContent=null), ArticleFig(id=1217500253117399541, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.10, caption=
Horizontal comparison of partition sound pressure, figureFileSmall=fUcAg2tXbw1n1MnSiO4kug==, figureFileBig=TSJhEVcYPiw+kOus4r0INA==, tableContent=null), ArticleFig(id=1217500253306143226, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图10, caption=
分区声压横向对比, figureFileSmall=fUcAg2tXbw1n1MnSiO4kug==, figureFileBig=TSJhEVcYPiw+kOus4r0INA==, tableContent=null), ArticleFig(id=1217500253448749566, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.11, caption=
Partition spectrum component proportion (normalized) comparison, figureFileSmall=rqscpXbaIiKEfS6+EnH0eQ==, figureFileBig=A8ORhW9bTHtZ93JsqTavtw==, tableContent=null), ArticleFig(id=1217500253553607172, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图11, caption=
分区频谱成分占比(归一化后)对比图, figureFileSmall=rqscpXbaIiKEfS6+EnH0eQ==, figureFileBig=A8ORhW9bTHtZ93JsqTavtw==, tableContent=null), ArticleFig(id=1217500253650076169, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.12, caption=
Pearson correlation coefficient mean, figureFileSmall=rwwJXkjQG8dsAbOpCnjSWw==, figureFileBig=K3GCk2aZ2h4scK+yuzFq8A==, tableContent=null), ArticleFig(id=1217500253754933774, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图12, caption=
Pearson相关系数均值, figureFileSmall=rwwJXkjQG8dsAbOpCnjSWw==, figureFileBig=K3GCk2aZ2h4scK+yuzFq8A==, tableContent=null), ArticleFig(id=1217500253876568594, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.13, caption=
Partition level diagram, figureFileSmall=JYoKWU5HLELbScIdpgCG+A==, figureFileBig=nnblaySmwqOBn4PDITR+pw==, tableContent=null), ArticleFig(id=1217500253977231894, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图13, caption=
分区等级示意图, figureFileSmall=JYoKWU5HLELbScIdpgCG+A==, figureFileBig=nnblaySmwqOBn4PDITR+pw==, tableContent=null), ArticleFig(id=1217500254052729369, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.14, caption=
PD online monitoring device, figureFileSmall=FJaUcEI+OGxByBe1/GXaIA==, figureFileBig=Mp1RCPGJ9cOKTPVvmRnD6Q==, tableContent=null), ArticleFig(id=1217500254132421149, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图14, caption=
局放在线监测装置, figureFileSmall=FJaUcEI+OGxByBe1/GXaIA==, figureFileBig=Mp1RCPGJ9cOKTPVvmRnD6Q==, tableContent=null), ArticleFig(id=1217500254212112930, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Fig.15, caption=
Actual measured PD ultrasound signal waveforms, figureFileSmall=OvZq12Zl0zxvtpWuMWgcKQ==, figureFileBig=AlPAKpvUG+OOoLdcVoTWzA==, tableContent=null), ArticleFig(id=1217500254321164838, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=图15, caption=
实测局放超声信号波形, figureFileSmall=OvZq12Zl0zxvtpWuMWgcKQ==, figureFileBig=AlPAKpvUG+OOoLdcVoTWzA==, tableContent=null), ArticleFig(id=1217500254442799659, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Tab.1, caption=
Structure material properties of transformer, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 材料 | 密度ρ/(kg/m3) | 声速c/(m/s) |
|---|
| 油箱、铁心、铁扼 | 结构钢 | 7 850 | 5 100 |
| 绕组 | 铜 | 8 700 | 4 760 |
| 油 | 变压器油 | 890 | 1 390 |
), ArticleFig(id=1217500254535074352, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=表1, caption=
变压器结构材料属性
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 材料 | 密度ρ/(kg/m3) | 声速c/(m/s) |
|---|
| 油箱、铁心、铁扼 | 结构钢 | 7 850 | 5 100 |
| 绕组 | 铜 | 8 700 | 4 760 |
| 油 | 变压器油 | 890 | 1 390 |
), ArticleFig(id=1217500254635737651, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Tab.2, caption=
Transformer simplified model size, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 数值 |
|---|
| 变压器油箱尺寸(长×宽×高)/m3 | 2.2×1.0×1.0 |
| 铁心半径/高度/m | 0.10/0.60 |
| 铁扼尺寸(长×宽×高)/m3 | 1.6×0.20×0.05 |
| 绕组高度/m | 0.60 |
| 高压绕组内/外半径/m | 0.19/0.25 |
| 低压绕组内/外半径/m | 0.10/0.13 |
), ArticleFig(id=1217500254728012342, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=表2, caption=
变压器简化模型尺寸
, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 数值 |
|---|
| 变压器油箱尺寸(长×宽×高)/m3 | 2.2×1.0×1.0 |
| 铁心半径/高度/m | 0.10/0.60 |
| 铁扼尺寸(长×宽×高)/m3 | 1.6×0.20×0.05 |
| 绕组高度/m | 0.60 |
| 高压绕组内/外半径/m | 0.19/0.25 |
| 低压绕组内/外半径/m | 0.10/0.13 |
), ArticleFig(id=1217500254816092730, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Tab.3, caption=
PD source coordinate in transformer, figureFileSmall=null, figureFileBig=null, tableContent=
| PD源位置 | 编号 | x/m | y/m | z/m |
|---|
| 1#绕组 | PD1 | -0.88 | 0.08 | 0.30 |
| PD2 | -0.80 | -0.22 | -0.18 |
| 1#与2#绕组间油道 | PD3 | -0.40 | -0.20 | 0 |
| 2#绕组 | PD4 | -0.05 | -0.15 | -0.03 |
| PD5 | 0.18 | -0.15 | 0.24 |
| 2#与3#绕组间油道 | PD6 | 0.42 | 0.01 | 0 |
| 3#绕组 | PD7 | 0.71 | 0.06 | -0.24 |
| PD8 | 1.00 | -0.10 | 0.24 |
| 铁扼 | PD9 | 0.05 | 0.02 | 0.35 |
| PD10 | 0.40 | -0.10 | -0.30 |
), ArticleFig(id=1217500254920950335, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=表3, caption=
变压器内局放源坐标
, figureFileSmall=null, figureFileBig=null, tableContent=
| PD源位置 | 编号 | x/m | y/m | z/m |
|---|
| 1#绕组 | PD1 | -0.88 | 0.08 | 0.30 |
| PD2 | -0.80 | -0.22 | -0.18 |
| 1#与2#绕组间油道 | PD3 | -0.40 | -0.20 | 0 |
| 2#绕组 | PD4 | -0.05 | -0.15 | -0.03 |
| PD5 | 0.18 | -0.15 | 0.24 |
| 2#与3#绕组间油道 | PD6 | 0.42 | 0.01 | 0 |
| 3#绕组 | PD7 | 0.71 | 0.06 | -0.24 |
| PD8 | 1.00 | -0.10 | 0.24 |
| 铁扼 | PD9 | 0.05 | 0.02 | 0.35 |
| PD10 | 0.40 | -0.10 | -0.30 |
), ArticleFig(id=1217500255021613634, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=EN, label=Tab.4, caption=
Comparison of detection efficiency, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 方案一 | 方案二 | 方案三 |
|---|
| 检测效率/% | 86.0 | 64.0 | 37.0 |
), ArticleFig(id=1217500256263127620, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1209928225266995742, language=CN, label=表4, caption=
检测效率对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 方案一 | 方案二 | 方案三 |
|---|
| 检测效率/% | 86.0 | 64.0 | 37.0 |
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