摘要
为了解决SF6气体的温室效应,研究替代SF6气体绝缘的环保型气体绝缘输电线路（GIL）技术,以期提升设备的环保效益。对环保型GIL技术发展进程进行了综述,针对国内开展的压缩空气GIL技术,在理论上探索了设备气压和管道设计的建议;对于SF6/N2混合气体,现有研究较为完善,参考SF6气体GIL设计,获得了气体绝缘特性,提出了绝缘和通流设计原则指导产品设计,220～550k V的SF6/N2混合气体GIL产品均运行正常,也研制出特高压GIL样机;新环保气体C4F7N具有优良的绝缘和环保性能,C4F7N/CO2混合气体应用于420 kV GIL正试运行,研制采用C4F7N混合气体的特高压环保GIL面临诸多的技术挑战,解决技术难题推动环保绝缘设备的发展。
To reduce the greenhouse effect of SF6, we investigated the technology of replacing SF6 gas insulation by environmental-friendly gas-insulated transmission line（GIL） to improve the environmental-friendly benefits of equipment. Meanwhile, we summarized the development process of environmental-friendly GIL technology, explored the compressed air GIL technology was., and theoretically suggested the gas pressure and pipeline sizes for GIL design. The current research on SF6/N2 gas mixture is complete. According to the design of SF6 GIL, the dielectric strength, insulation design and current-loading ability were obtained to guide GIL design. The products of 220～550 kV GIL with SF6/N2 gas mixture are in normal operation. And UHV GIL prototype has been developed. New environment-friendly gas C4F7N possesses favorable insulation and environment-friendly performances. 420 kV GIL with C4F7N/CO2 gas mixture has been in test operation. There are some technical challenges in developing UHV GIL with C4F7N gas mixture. It is urged to resolve the technical problems, in order to promote the development of environment-friendly equipment.
作者
高克利
颜湘莲
王浩
何洁
李志兵
柏长宇
刘焱
黄河
GAO Keli;YAN Xianglian;WANG Haol;HE Jie;LI Zhibing;BAI Changyu;LIU Yan;HUANG He(China Electric Power Research Institute,Beijing 100192,China;Pinggao Group Co.,Ltd.,Pingdingshan 467001,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2018年第10期3105-3113,共9页
High Voltage Engineering
基金
国家重点研发计划(2017YFB0902500)
国家电网公司总部科技项目(环保型管道输电关键技术)~~
