摘要
为了解决SF6气体的温室效应,有必要研究替代SF6绝缘的环保气体绝缘管道(GIL)技术,以期提升设备的环保效益。该文从环保绝缘气体的分子设计和合成制备、环保绝缘气体绝缘性能及其气固相容性、1100kV环保GIL研制与运维技术三方面,总结国内外研究所取得的进展,提出新环保气体的优化取代和杂化设计方法,确定C4F7N混合气体设备的绝缘设计依据,设计出1100kV环保GIL支撑绝缘子和管道样机,建立环保GIL运维技术。梳理出环保GIL技术待解决的关键问题,包括性能接近或优于SF6的新环保气体合成和制备技术,C4F7N混合气体的灭弧与介质恢复特性,以及环保GIL的运维检修策略等,以期全面掌握C4F7N环保绝缘气体及其应用于设备的关键技术,为环保电气设备的研制和运行提供有益的参考。
In order to reduce the greenhouse effect of SF6 gas,it is necessary to investigate the environment-friendly gas insulated transmission line(EGIL)with free SF6 gas for environmental benefits of equipment.From three aspects,including the molecular design and synthesis of preparation for environment-friendly insulation gas,insulation performance and gas-solid material compatibility,1000kV EGIL prototype development and operational technology,the research status was summarized in this paper.The replacement optimal design and hybrid design method for new substitution environment-friendly gases has been established.The proposal of insulation design basis with C4F7N gas mixture was provided.The support insulators and pipeline prototype for 1000kV EGIL has been manufactured,and the operation and maintenance system of EGIL was set up.Some main problems of EGIL to be resolved further has been put forward,including the synthesis and preparation technology for new environment-friendly gas,arc extinguishing and its recovery characteristics of C4F7N gas mixture,operation and maintenance strategy of EGIL et al.In order to master the key technology of C4F7N environment-friendly insulation gas and its application of equipment,all the achievements will provide the beneficial reference for the development and operation of environment-friendly electrical equipment.
作者
高克利
颜湘莲
刘焱
王宝山
胡世卓
李志闯
Gao Keli;Yan Xianglian;Liu Yan;Wang Baoshan;Hu Shizhuo;Li Zhichuang(State Key Laboratory of Power Grid Environmental Protection China Electric Power Research Institute,Beijing 100192 China;School of Electrical Engineering and Automation Wuhan University,Wuhan 430072 China;School of Electrical Engineering Xi'an Jiaotong University,Xi'an 710049 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2020年第1期3-20,共18页
Transactions of China Electrotechnical Society
基金
国家重点研发计划（2017YFB0902500）
国家电网公司科技项目“环保型管道输电关键技术”资助
关键词
环保气体绝缘管道
分子设计
绝缘性能
相容性
运维技术
Environment-friendly gas insulated transmission line(EGIL)
molecular design
insulation performance
gas-solid material compatibility
operational technology
