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[1]李长明,伍国方,李春阳,等.XLPE 绝缘高压直流电缆终端内缺陷对电场分布的影响[J].电机与控制学报,2018,22(12):62-67.[doi:10.15938/j.emc.2018.12. 008]
 LI Chang-ming,WU Guo-fang,LI Chun-yang,et al.Effect of the defects inside XLPE insulated HVDC cable termination on the electric field distribution[J].,2018,22(12):62-67.[doi:10.15938/j.emc.2018.12. 008]
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XLPE 绝缘高压直流电缆终端内缺陷对电场分布的影响
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
22
期数:
2018年12
页码:
62-67
栏目:
出版日期:
2018-12-15

文章信息/Info

Title:
Effect of the defects inside XLPE insulated HVDC cable termination on the electric field distribution
作者:
 李长明1 伍国方1 李春阳1 周扬2 侯帅3 韩宝忠14
 ( 1. 哈尔滨理工大学工程电介质及其应用教育部重点实验室,哈尔滨150080; 2. 国网黑龙江省电力有限公司电力科学研究院,哈尔滨150030; 3. 南方电网科学研究院有限责任公司,广州510080;4. 上海起帆电缆股份有限公司,上海201514)
Author(s):
 LI Chang-ming1 WU Guo-fang1 LI Chun-yang1 ZHOU Yang2HOU Shuai3 HAN Bao-zhong14
 ( 1. Key Laboratory of Engineering Dielectrics and Its Application of the Ministry of Education,Harbin University of Science and Technology,Harbin 150080,China; 2. State Grid Heilongjiang Electric Power Company Limited Electric Power Research Institute,Harbin 150030,China; 3. Electric Power Research Institute,China Southern Power Grid,Guangzhou 510080,China; 4. Shanghai Qifan Cable Co. ,Ltd. ,Shanghai 201514,China)
关键词:
交联聚乙烯 电缆终端 硅橡胶 缺陷 电场分布
Keywords:
crosslinked polyethylene cable termination silicon rubber defect electric field distribution
分类号:
TM 247
DOI:
10.15938/j.emc.2018.12. 008
文献标志码:
A
摘要:
为了研究以非线性硅橡胶作为增强绝缘的交联聚乙烯( XLPE) 绝缘高压直流电缆终端内部存在缺陷时对其电场分布特性的影响,利用多物理场耦合软件仿真研究了无缺陷和含有典型缺陷直流电缆终端内的电场分布规律。研究结果表明: 非线性硅橡胶作为增强绝缘具有较强的均化
电场分布的能力,使无缺陷直流电缆终端内最大电场分布于电缆主绝缘内; 当应力锥安装错位时,电场畸变程度随电缆外屏蔽超出应力锥根部距离增加而增大; 当增强绝缘内有气孔时,电场主要集中在气孔附近,且最大电场强度超过空气的击穿场强; 应力锥表面微小突起会使其附近处局部电场明显增强。
Abstract:
 In order to study the effect of defects inside the crosslinked polyethylene ( XLPE) insulated DC cable termination with nonlinear silicone rubber as reinforced insulation on the electrical field distribution,the electric field distribution inside the DC cable termination with and without typical defects is studied by finite element software in this paper. The results shows that the nonlinear silicone rubber used as reinforced insulation has a strong capacity to homogenize the electric field and keeps the maximum electric field inside the DC cable termination with no defects located in the major insulation of the cable.When the stress cone is under incorrect installation, the distortion degree of the electric field increases with the distance that the cable external screen extends beyond the root of the stress cone. When gas gap exists in the reinforced insulation, the electric field mainly concentrates around the gas gap and the maximum electric field strength exceeds the breakdown strength of air. The small bulge on the surface of the stress cone obviously enhances the local electric field near the bulge.

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备注/Memo

备注/Memo:
收稿日期: 2016 - 09 - 04
基金项目: 国家自然科学基金( 51337002) ; 中国南方电网有限责任公司( KY2014 - 502)
作者简介: 李长明( 1963—) ,男,硕士,教授,研究方向为聚合物绝缘材料;
伍国方( 1992—) ,男,硕士研究生,研究方向为聚合物绝缘材料;
李春阳( 1991—) ,男,博士研究生,研究方向为聚合物绝缘材料;
周扬( 1989—) ,男,硕士研究生,研究方向为国家电网电力设备物资抽检;
侯帅( 1988—) ,女,硕士,工程师,研究方向为直流电缆绝缘技术;
韩宝忠( 1970—) ,男,博士,教授,研究方向为高性能聚合物电介质材料。
通信作者: 李长明
更新日期/Last Update: 2019-03-08