SF_6放电分解组分分析及其应用的研究现状与发展  

Research Status and Development of SF_6 Decomposition Components Analysis Under Discharge and Its Application

作　　者：汲胜昌[1] 钟理鹏 刘凯[1] 李金宇[1] 崔彦捷 王圆圆[1] 郭锦龙[2] 冀国龙[2] 

机构地区：[1]电力设备电气绝缘国家重点实验室(西安交通大学),陕西省西安市710049 [2]国网山西省电力公司电力科学研究院,山西省太原市030001

出　　处：《中国电机工程学报》2015年第9期2318-2332,共15页Proceedings of the CSEE

摘　　要：SF6绝缘类电力设备具有体积小、安全性高、维修周期长等众多优点,随着其在电力系统中得到越来越广泛的应用,SF6气体放电分解组分分析及其应用成为近年来的一个重要研究课题。从SF6气体分解过程及机制、分解产物检测方法、不同条件下的分解特性及影响因素以及电力设备绝缘缺陷诊断应用等几个方面对其进行了归纳。SF6在放电条件下会发生分解,生成多种类型的气体产物,其分解组分的种类和含量受到电流、电极材料、微水微氧含量、气压、吸附剂等多种因素的影响。同时SF6的分解过程与放电类型及放电能量密切相关,因此可以将SF6放电分解组分分析技术应用于电力设备的状态监测之中。最后,提出了今后研究中有待进一步解决的问题和可能的发展方向。With many advantages such as smart volume, high security and long maintenance cycle, etc. SF6 gas-insulated electrical equipment has gained more popularity in power system. As a result, the analysis of SF6 gas decomposition products and detection of partial discharge （PD） has become an important research subject in recent years. The following aspects including mechanism and process of SF6 decomposition, detection methods for decomposition products, decomposition characteristics of SF6 under different conditions and diagnostic application for insulation defects in power equipment were concluded in this paper. SF6 will decompose into multiple types of products under discharge. The types and contents of decomposition products were influenced by various factors including current, electrode material, micro-water and micro-aerobic content, adsorbents. The decomposition process of SF6 is closely related to discharge type and energy. Hence, analysis techniques of SF6 decomposition can be applied to state monitoring of power apparatus. Finally, further issues needed solved and possible development directions were put forward.

关 键 词：SF6 气体分解产物 分解机制 检测方法 分解特性 诊断应用 

分 类 号：TM85[电气工程—高电压与绝缘技术]