&#x000b1_500kV直流海缆在J型管敷设环境下的稳态载流量仿真研究.pdf

第 43 卷 第 12 期 中 国 电 机 工 程 学 报 Vol.43 No.12 Jun. 20, 2023 2023 年 6 月 20 日 Proceedings of the CSEE ©2023 Chin.Soc.for Elec.Eng. 4851 DOI ：10.13334/j.0258-8013.pcsee.213179 文章编号：0258-8013 (2023) 12-4851-10 中图分类号：TM 247 文献标识码：A 500kV 直流海缆在J 型管敷设环境下的 稳态载流量仿真研究 1 1* 1 2 2 夏源 ，赵学童 ，冯勇 ，侯帅 ，冯宾 (1．输配电装备及系统安全与新技术国家重点实验室(重庆大学) ，重庆市 沙坪坝区 400044 ； 2．南方电网科学研究院有限责任公司，广东省 广州市 510663) Simulation Study on Steady-state Ampacity of 500kV DC Submarine Cable Under J-tube Laying Environment 1 1* 1 2 2 XIA Yuan , ZHAO Xuetong , FENG Yong , HOU Shuai , FENG Bin (1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology (Chongqing University), Shapingba District, Chongqing 400044, China; 2. Electric Power Research Institute China Southern Power Grid, Guangzhou 510663, Guangdong Province, China) ABSTRACT: The calculation of steady-state ampacity of shows a decreasing trend from inner surface to outer surface of HVDC submarine cable is of great significance to the design the insulation layer. Moreover, it is found that the steady-state and operation of submarine cable. A three-dimensional ampacity of the submarine cable can be improved slightly by electric-thermal-fluid coupling model of  500kV DC reducing the thickness of J-tube wall and increasing the submarine c