Effects of Different Load on Temperature and Electric Field Distribution of Flexible DC Cable Terminal

2018 Condition Monitoring and Diagnosis (CMD) Pub Date : 2018-09-01 DOI:10.1109/CMD.2018.8535781

Longxiao Chen, Li-Ming Yang, Zhien Zhu, Xike Wu

{"title":"Effects of Different Load on Temperature and Electric Field Distribution of Flexible DC Cable Terminal","authors":"Longxiao Chen, Li-Ming Yang, Zhien Zhu, Xike Wu","doi":"10.1109/CMD.2018.8535781","DOIUrl":null,"url":null,"abstract":"Flexible DC cable is the most important carrier of flexible DC transmission, while the flexible DC cable terminal is the weakest part of the whole cable system. When the load applied in the flexible DC cable system is different, the stable operation temperature of flexible DC cable conductor will be different, each part of the terminal insulating material temperature changes, which makes the conductivity changes. Therefore, the electric field distribution of the DC cable terminal also presents difference with the change of load. Due to the conductivity is a function of changing with temperature and electric field, using analytic method to solve the electric field distribution in terminal insulating layer is very difficult. This paper has compared the calculation results of analytical method and finite element method by calculating DC cable. The results show the consistency of analytical method and finite element method. Through the research on the temperature field and the electric field distribution of flexible DC cable terminal insulation, fully grasp the law of the electric field distribution of terminal insulation layer, provide the research foundation of flexible DC cable terminal structure design and optimization, and also provide technical support for China's ± 535kV and ± 800kV UHVDC transmission project.","PeriodicalId":6529,"journal":{"name":"2018 Condition Monitoring and Diagnosis (CMD)","volume":"5 1","pages":"1-6"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 Condition Monitoring and Diagnosis (CMD)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CMD.2018.8535781","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Flexible DC cable is the most important carrier of flexible DC transmission, while the flexible DC cable terminal is the weakest part of the whole cable system. When the load applied in the flexible DC cable system is different, the stable operation temperature of flexible DC cable conductor will be different, each part of the terminal insulating material temperature changes, which makes the conductivity changes. Therefore, the electric field distribution of the DC cable terminal also presents difference with the change of load. Due to the conductivity is a function of changing with temperature and electric field, using analytic method to solve the electric field distribution in terminal insulating layer is very difficult. This paper has compared the calculation results of analytical method and finite element method by calculating DC cable. The results show the consistency of analytical method and finite element method. Through the research on the temperature field and the electric field distribution of flexible DC cable terminal insulation, fully grasp the law of the electric field distribution of terminal insulation layer, provide the research foundation of flexible DC cable terminal structure design and optimization, and also provide technical support for China's ± 535kV and ± 800kV UHVDC transmission project.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

不同负载对柔性直流电缆端子温度和电场分布的影响

柔性直流电缆是柔性直流输电最重要的载体，而柔性直流电缆终端是整个电缆系统中最薄弱的环节。当直流柔性电缆系统中所施加的负载不同时，直流柔性电缆导体的稳定工作温度也会不同，端子各部分绝缘材料温度发生变化，从而使其导电性发生变化。因此，直流电缆端子的电场分布也随着负载的变化而出现差异。由于电导率是随温度和电场变化的函数，用解析法求解端子绝缘层内的电场分布是非常困难的。通过对直流电缆的计算，比较了解析法和有限元法的计算结果。结果表明解析法与有限元法的一致性。通过对柔性直流电缆终端绝缘温度场和电场分布的研究，充分掌握终端绝缘层电场分布规律，为柔性直流电缆终端结构设计和优化提供研究基础，也为中国±535kV和±800kV特高压直流输电工程提供技术支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

2018 Condition Monitoring and Diagnosis (CMD)

自引率

0.00%

发文量

期刊最新文献

Author/Paper Index Partial Discharge Analysis on-site in Various High Voltage Apparatus A Novel Anomaly Localization Method on PMU Measure System Based on LS and PCA Effects of Revulcanization on XLPE Crystalline Morphology and AC Breakdown Performance Impact of Voltage Harmonics on Condition Assessment of Polluted Insulator through a Simulation Model