直流电缆附件温度场分布的研究

2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE) Pub Date : 2020-09-06 DOI:10.1109/ICHVE49031.2020.9279365

Longxiao Chen, Zhien Zhu, Liming Yang, Xike Wu, Shujun Liu, Yu Liu

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引用次数: 0

摘要

直流电缆是直流输电最重要的载体，而直流电缆附件是整个电缆系统中最薄弱的部分。当施加在柔性直流电缆系统中的负载不同时，接头各部分绝缘材料的温度发生变化，从而使其导电性发生变化。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。通过研究，充分掌握接头绝缘层电场分布规律，为柔性直流电缆接头结构设计与优化提供研究依据，也为中国±535kV、±800kV特高压直流输电工程提供技术支持。

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Study on Temperature and Electric Field Distributions of DC Cable Accessories

DC cable is the most important carrier of DC transmission, while the DC cable accessories is the weakest part of the whole cable system. When the load applied in the flexible DC cable system is different, each part of the joint insulating material temperature changes, which makes the conductivity changes. 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 we fully grasp the law of the electric field distribution of joint insulation layer, provide the research foundation of flexible DC cable joint structure design and optimization, and also provide technical support for China's ±535kV and ±800kV UHVDC transmission project.

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2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)

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