挤包绝缘高压直流电缆的发展

发布时间：2018-01-20 07:08

本文关键词： 挤包绝缘高压直流电缆直流电导率空间电荷电缆附件验证试验　出处：《高电压技术》2017年11期 　论文类型：期刊论文

【摘要】：挤包绝缘高压直流电缆是实现大电网柔性互联、远距离大容量输电和新能源电力规模化利用的关键电力设备之一。按照挤包绝缘高压直流电缆系统的开发脉络,从挤包绝缘高压直流电缆绝缘材料的开发、电缆附件相关技术、电缆系统的试验方法与检测技术、国内外工程应用等方面,全面综述了挤包绝缘高压直流电缆的技术发展现状。特别针对高压直流电缆用绝缘材料的直流电导和空间电荷特性研究、直流电缆系统的型式试验和预鉴定试验方法、全尺寸电缆空间电荷测量和直流局部放电检测技术等热点问题进行了分析,提出了目前挤包绝缘高压直流电缆技术中亟待解决的问题,包括研究现有电缆绝缘的电导和空间电荷特性与长期老化行为及其机理,开发更高电压等级直流电缆用绝缘材料,研发附件材料并优化附件结构设计,提升全尺寸电缆空间电荷测量技术及直流局部放电检测技术,完善电缆系统设计选型、试验验证与运行维护的相关规范与标准等。该研究可为我国挤包绝缘高压直流电缆设计、关键材料、装备制造和试验技术等相关方面的研究提供参考。
[Abstract]:Extruded insulated HVDC cable is one of the key power equipment to realize flexible interconnection of large power network, long distance and large capacity transmission and large-scale utilization of new energy power. According to the development of squeeze insulated HVDC cable system. From the development of insulating materials for extruded insulated HVDC cables, the related technology of cable accessories, the test method and detection technology of cable system, and the engineering application at home and abroad, etc. In this paper, the technical development of extruded insulated HVDC cables is reviewed, especially the research on DC conductance and space charge characteristics of insulating materials for HVDC cables. The methods of type test and pre-test of DC cable system, space charge measurement of full-scale cable and DC partial discharge detection technology are analyzed in this paper. The problems that need to be solved urgently in the technology of high voltage DC cable with extruded insulation are put forward, including the study of the conductance and space charge characteristics of the existing cable insulation and the long-term aging behavior and the mechanism thereof. Develop insulation materials for higher voltage DC cables, develop accessories and optimize structural design of accessories, upgrade space charge measurement technology and DC partial discharge detection technology for full-size cables. Improve cable system design and selection, test verification and operation and maintenance of the relevant specifications and standards. This study can be used for the design of high-voltage DC cables with extruded insulation, key materials. Equipment manufacturing and testing technology and other related aspects of research to provide reference.
【作者单位】：西安交通大学电力设备电气绝缘国家重点实验室;
【基金】：国家重点研发计划(2016YFB0900703) 国家电网公司重大科技项目(5545DW160013) 南方电网公司重大专项(K-KY2014-31)~~
【分类号】：TM247
【正文快照】： 0引言1人类正面临诸多全球性机遇与挑战:人口持续增长,城市化进程加速,能源供给平衡与可持续性,环境与气候变化等。为了保持和促进经济增长而不过度消耗地球能源资源,有效应对各种自然和社会挑战,未来电力系统将发生重大转变,太阳能、风能等可再生能源有望以集中式和分布式两

【相似文献】