Article(id=1210201196162322703, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210201193939333459, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2022.07.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1624291200000, receivedDateStr=2021-06-22, revisedDate=1630944000000, revisedDateStr=2021-09-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1766464049615, onlineDateStr=2025-12-23, pubDate=1658246400000, pubDateStr=2022-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766464049615, onlineIssueDateStr=2025-12-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766464049615, creator=13701087609, updateTime=1766464049615, updator=13701087609, issue=Issue{id=1210201193939333459, tenantId=1146029695717560320, journalId=1149653034449285133, year='2022', volume='55', issue='7', pageStart='1', pageEnd='114', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766464049085, creator=13701087609, updateTime=1766563116850, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210616714308481463, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210201193939333459, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210616714308481464, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210201193939333459, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=64, endPage=70, ext={EN=ArticleExt(id=1210201196443341072, articleId=1210201196162322703, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Analysis on Properties of High-voltage Cable Terminal Material on Motor Train Unit Roof and Electro-thermal Coupling Field Simulation, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
The operating environment of EMU is complex, under the influences of multiple factors such as electricity, heat, and high-speed airflow, the performance of insulating material for high-voltage cable terminal on the roof is an important factor affecting the safety and stability of power supply system for EMU. In this study, the thermal conductivity, glass transition temperature, and dielectric properties of typical insulating materials for cable terminal on the roof were tested and analyzed by combining experimental analysis with simulation calculation. The electric field distribution at room temperature and the temperature distribution at different ambient temperatures of the cable terminal were studied by establishing an electric-thermal coupling simulation model of the roof cable terminal. The results show that the thermal conductivity of both ethylene-propylene-diene monomer (EPDM) and epoxy resin (EP) increases with the increase of temperature, and decreases with the increase of temperature when the temperature is higher than 80℃. At room temperature, the thermal conductivity of EPDM and EP is 0.251 W/(m·K) and 0.431 W/(m·K), respectively. The dielectric constant of EPDM decreases gradually with the increase of temperature, decreasing from 3.7 at -60℃ to 3.28 at 100℃. The dielectric constant of EP increases gradually with the increase of temperature, increasing from 5.02 at -60℃ to 5.29 at 100℃, which is due to the difference of their glass transition temperature. The simulation results show that the change of electric field at the terminal of AC cable caused by temperature is small, the maximum distortion point occurs at the root of stress cone, and the electric field is 3.12 kV/mm. The secondary electric field concentrates in the main insulation of cable, and the electric field is 2.9 kV/mm.
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动车组运行环境复杂,在电、热、高速气流等多重因素影响下的车顶高压电缆终端绝缘材料性能是影响动车组供电系统安全稳定的重要因素。本研究采用实验分析与仿真计算相结合的方法,测试分析了车顶电缆终端典型绝缘材料的导热性能、玻璃化转变温度和介电性能;通过建立车顶电缆终端电-热耦合仿真模型,分别研究了室温下电缆终端电场分布以及不同环境温度下的电缆终端温度分布。结果表明:三元乙丙橡胶和环氧树脂的导热系数均随着温度的升高而增大,高于80℃时,导热系数随着温度的升高有所减小。室温下,三元乙丙橡胶和环氧树脂的导热系数分别为0.251 W/(m·K)和0.431 W/(m·K)。三元乙丙橡胶的相对介电常数随着温度的升高逐渐减小,从-60℃的3.70减小到100℃的3.28;环氧树脂的相对介电常数随着温度的升高逐渐增大,从-60℃的5.02增大到100℃的5.29,这是由于二者的玻璃化转变温度不同引起的。仿真结果表明:温度引起交流电缆终端的电场变化不大,最大畸变点出现在应力锥根部,其值为3.120 kV/mm;其次电场集中分布在电缆主绝缘,电场强度为2.995 kV/mm。
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李国倡(1985-),男(汉族),山东青岛人,副教授,博士,研究方向为电力设备绝缘技术与绝缘材料、多场耦合下绝缘部件电场仿真与结构优化。
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王景兵(1988-),男(汉族),山东聊城人,高级工程师,研究方向为轨道交通领域车辆用高压及辅助电气系统。
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2013., articleTitle=动车组高压电缆局部放电成因分析和检测研究, refAbstract=null)], funds=[Fund(id=1210538969645838520, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, awardId=2021KJ023, language=CN, fundingSource=山东省高等学校“青创科技支持计划”项目(2021KJ023), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1210538960674223014, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, xref=1, ext=[AuthorCompanyExt(id=1210538960678417319, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, companyId=1210538960674223014, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2青岛科技大学 先进电工材料研究院,山东 青岛 266042)])], figs=[ArticleFig(id=1210538965728358501, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.1, caption=
Test samples, figureFileSmall=pWe/7/3A1P5k3rCgBQMdbQ==, figureFileBig=MkaZi2nu0RuNjo2T90p9Iw==, tableContent=null), ArticleFig(id=1210538965820633194, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图1, caption=
测试样品, figureFileSmall=pWe/7/3A1P5k3rCgBQMdbQ==, figureFileBig=MkaZi2nu0RuNjo2T90p9Iw==, tableContent=null), ArticleFig(id=1210538965921296492, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.2, caption=
Thermal conductivity of materials, figureFileSmall=imDVSBWmxgioMLq7hN/oyQ==, figureFileBig=bQmebmTCwMUfgpFbADlx6A==, tableContent=null), ArticleFig(id=1210538965992599662, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图2, caption=
材料的导热性能, figureFileSmall=imDVSBWmxgioMLq7hN/oyQ==, figureFileBig=bQmebmTCwMUfgpFbADlx6A==, tableContent=null), ArticleFig(id=1210538966093262959, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.3, caption=
DSC curve of EPDM, figureFileSmall=uDUswrWyu08nC2pVVQuMaw==, figureFileBig=F0k9IXAvfRqMqRFyuL+70A==, tableContent=null), ArticleFig(id=1210538966223286387, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图3, caption=
三元乙丙橡胶的DSC曲线, figureFileSmall=uDUswrWyu08nC2pVVQuMaw==, figureFileBig=F0k9IXAvfRqMqRFyuL+70A==, tableContent=null), ArticleFig(id=1210538967464800373, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.4, caption=
DSC curve of epoxy resin, figureFileSmall=Yy0XLB6JvviHmeKcAC3u2A==, figureFileBig=lV11fLLDCqOojNFBZwuDGA==, tableContent=null), ArticleFig(id=1210538967565463675, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图4, caption=
环氧树脂的DSC曲线, figureFileSmall=Yy0XLB6JvviHmeKcAC3u2A==, figureFileBig=lV11fLLDCqOojNFBZwuDGA==, tableContent=null), ArticleFig(id=1210538967716458620, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.5, caption=
The relative dielectric constant of EPDM with temperature, figureFileSmall=4KhpBRpzsN++6KRP21FYdQ==, figureFileBig=0/FY8hC1eNlKIduGi0i2Zg==, tableContent=null), ArticleFig(id=1210538967800344707, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图5, caption=
三元乙丙橡胶的相对介电常数随温度变化曲线, figureFileSmall=4KhpBRpzsN++6KRP21FYdQ==, figureFileBig=0/FY8hC1eNlKIduGi0i2Zg==, tableContent=null), ArticleFig(id=1210538967867453570, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.6, caption=
The relative dielectric constant of epoxy resin with temperature, figureFileSmall=zYJJ8DsNqEJoBfQekkHl0w==, figureFileBig=KKaPxb97ZtU5adquBjxk7Q==, tableContent=null), ArticleFig(id=1210538967942951045, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图6, caption=
环氧树脂的相对介电常数随温度变化曲线, figureFileSmall=zYJJ8DsNqEJoBfQekkHl0w==, figureFileBig=KKaPxb97ZtU5adquBjxk7Q==, tableContent=null), ArticleFig(id=1210538968081363079, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.7, caption=
Potential distribution of cable terminal, figureFileSmall=aZTLFeP+t9j5J/gLRV4XcA==, figureFileBig=Cd8KjIBl9qYHPk2lBREcXQ==, tableContent=null), ArticleFig(id=1210538968211386506, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图7, caption=
电缆终端电位分布, figureFileSmall=aZTLFeP+t9j5J/gLRV4XcA==, figureFileBig=Cd8KjIBl9qYHPk2lBREcXQ==, tableContent=null), ArticleFig(id=1210538968328827022, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.8, caption=
Electric field distribution of cable terminal, figureFileSmall=0BIrA2UHaSzQUp3rkXKdgA==, figureFileBig=ZstxxM6W76ZWn2XcbAKCog==, tableContent=null), ArticleFig(id=1210538968433684623, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图8, caption=
电缆终端电场分布, figureFileSmall=0BIrA2UHaSzQUp3rkXKdgA==, figureFileBig=ZstxxM6W76ZWn2XcbAKCog==, tableContent=null), ArticleFig(id=1210538968538542225, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.9, caption=
Radial electric field distribution of cable terminal, figureFileSmall=r1lwTUCGXnNIUxGQXVG0Og==, figureFileBig=8E65UmCpGO0dFE+WYOTR/g==, tableContent=null), ArticleFig(id=1210538968605651092, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图9, caption=
电缆终端径向电场分布, figureFileSmall=r1lwTUCGXnNIUxGQXVG0Og==, figureFileBig=8E65UmCpGO0dFE+WYOTR/g==, tableContent=null), ArticleFig(id=1210538968660177046, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.10, caption=
The maximum electric field at the cable terminal main insulation varies with time, figureFileSmall=3HjuJ0W8ER/9b/FCKtrGQg==, figureFileBig=2zf3WNcNUeL8QH9XsdqUkQ==, tableContent=null), ArticleFig(id=1210538968756646041, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图10, caption=
电缆终端主绝缘最大电场随时间变化, figureFileSmall=3HjuJ0W8ER/9b/FCKtrGQg==, figureFileBig=2zf3WNcNUeL8QH9XsdqUkQ==, tableContent=null), ArticleFig(id=1210538968815366301, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.11, caption=
Temperature field distribution of cable terminal, figureFileSmall=c1AXK3WCHzkoyezNvS0Apw==, figureFileBig=HhnKHZvgX/vR/rpka8sydA==, tableContent=null), ArticleFig(id=1210538968899252386, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图11, caption=
电缆终端温度场分布, figureFileSmall=c1AXK3WCHzkoyezNvS0Apw==, figureFileBig=HhnKHZvgX/vR/rpka8sydA==, tableContent=null), ArticleFig(id=1210538968978944163, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Fig.12, caption=
Temperature distribution of cable terminal, figureFileSmall=qciJLL3x7NA+kcS6YFSLgA==, figureFileBig=7IePrYYxyDZz10OH7fkVYw==, tableContent=null), ArticleFig(id=1210538969071218856, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=图12, caption=
电缆终端温度分布, figureFileSmall=qciJLL3x7NA+kcS6YFSLgA==, figureFileBig=7IePrYYxyDZz10OH7fkVYw==, tableContent=null), ArticleFig(id=1210538969167687852, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Tab.1, caption=
The maximum electric field at different regions, figureFileSmall=null, figureFileBig=null, tableContent=
| 位置 | 主绝缘 | 应力锥 | 环氧套管 |
|---|
| 电场强度/(kV/mm) | 2.995 | 3.120 | 1.108 |
), ArticleFig(id=1210538969301905584, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=CN, label=表1, caption=
不同区域最大电场
, figureFileSmall=null, figureFileBig=null, tableContent=
| 位置 | 主绝缘 | 应力锥 | 环氧套管 |
|---|
| 电场强度/(kV/mm) | 2.995 | 3.120 | 1.108 |
), ArticleFig(id=1210538969402568881, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210201196162322703, language=EN, label=Tab.2, caption=
Comparison of electric field and temperature at root of stress cone under different environment temperatures, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 环境温度/℃ |
|---|
| -30 | 25 | 50 |
|---|
| 应力锥根部温度/℃ | 38.3 | 46.3 | 71.5 |
| 应力锥根部电场/(kV/mm) | 3.104 | 3.120 | 3.150 |
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不同环境温度条件下应力锥根部电场强度和温度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 环境温度/℃ |
|---|
| -30 | 25 | 50 |
|---|
| 应力锥根部温度/℃ | 38.3 | 46.3 | 71.5 |
| 应力锥根部电场/(kV/mm) | 3.104 | 3.120 | 3.150 |
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