直流气体绝缘输电线路关键问题及装备研发现状综述  

Review of Key Problems and Development Status of DC Gas Insulated Transmission Line

作　　者：梁芳蔚 张长虹[2] 吕金壮[2] 梁作栋 庄伟建 陈庚[3] 范贤浩 李传扬[1] 何金良[1] LIANG Fangwei;ZHANG Changhong;LYU Jinzhuang;LIANG Zuodong;ZHUANG Weijian;CHEN Geng;FAN Xianhao;LI Chuanyang;HE Jinliang(State Key Lab of Control and Simulation of Power System and Generation Equipments,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;Maintenance&Test Center of EHV Power Transmission Company,China Southern Power Grid,Guangzhou 510663,China;Beijing Key Laboratory of High Voltage&EMC,North China Electric Power University,Beijing 102206,China)

机构地区：[1]清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室,北京100084 [2]中国南方电网有限责任公司超高压输电公司检修试验中心,广州510663 [3]华北电力大学高电压和电磁兼容北京市重点实验室,北京102206

出　　处：《高压电器》2023年第9期1-11,共11页High Voltage Apparatus

摘　　要：直流气体绝缘金属封闭输电线路(GIL)可解决特殊地理环境下输电走廊空间限制问题,为构建“双碳”目标下中国未来能源结构提供装备基础。文中回顾了中国在直流GIL方面的研究进展,包括表面电荷及金属微粒动力学与抑制理论、导体表面形貌诱发的微电离理论等关键科学问题,以及绝缘件设计、微粒捕捉器设计等技术创新。此外,简要介绍了近年来中国在直流GIL的装备研发及设备评价标方面的进展。文中内容为未来直流GIL的研发及应用提供了参考。DC gas insulated metal-enclosed transmission line(GIL)can solve such problem as the space limit of the transmission corridor under special geographical environment and provide facility foundation for constructing the‘carbon peaking and carbon neutrality’target.In this paper,the development progress of DC GIL in China is reviewed,including surface charge,metal particle kinetics and inhibition theory,the key scientific issue such as micro ionization theory induced by the conductor surface morphology,as well as such technical innovation as design of insulation part and of particle trapper.Moreover,the progress of DC GIL equipment development and evaluation in China in recent years is simply introduced.The contents in this paper can provide reference for the development and application of DC GIL in the future.

关 键 词：直流GIL 表面电荷 沿面闪络 金属颗粒 导体粗糙度 

分 类 号：TM75[电气工程—电力系统及自动化]