三氟甲基磺酰氟的局部放电发射光谱识别及特征分析  

Identification and Characteristic Analysis of Partial Discharge Emission Spectra of CF3SO2F

作　　者：段竣然 高克利 刘伟 颜湘莲 朱姗 张国强[1,2] 韩冬 DUAN Jun-ran;GAO Ke-li;LIU Wei;YAN Xiang-lian;ZHU Shan;ZHANG Guo-qiang;HAN Dong(Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;China Electric Power Research Institute,Beijing 100192,China;State Grid Anhui Electric Power Co.Ltd.,Electric Power Science Research Institute,Hefei 230031,China)

机构地区：[1]中国科学院电工研究所,北京100190 [2]中国科学院大学,北京100049 [3]中国电力科学研究院有限公司,北京100192 [4]国网安徽省电力有限公司电力科学研究院,安徽合肥230031

出　　处：《光谱学与光谱分析》2025年第5期1448-1454,共7页Spectroscopy and Spectral Analysis

基　　金：国家重点研发计划项目(2021YFB2401400);中国科学院科研仪器设备研制项目(YJKYYQ20200012)资助。

摘　　要：三氟甲基磺酰氟(CF_(3)SO_(2)F)是一种新型的环保绝缘气体,因为优异的绝缘强度与环境友好性而受到广泛关注。对不同放电模式下CF_(3)SO_(2)F的发射光谱进行了识别,从放电角度分析了辐射粒子的发射光谱特征。电晕放电过程中CF_(3)SO_(2)F解离产生的CF2辐射出了200~400 nm范围内的带状光谱,与之关联的稳态分解产物有CF_(4),C_(2)F_(4),C_(2)F_(6),C_(3)F_(8),SO_(2)F_(2)等;因电场提供的能量增加,沿面放电发射光谱出现线状与带状光谱交叠的现象。少数元素粒子出现电离;火花放电下电场提供的能量最高,发射光谱以线状光谱为主。元素粒子出现多级电离;可见光与红外谱段光子数占比随电场提供的能量增加出现“红移”现象。研究结果表明,局部放电过程中气态分子或元素粒子辐射形成的发射光谱与稳态分解产物具有关联性。特征光谱的出现印证了存在的自由基反应,光子数占比的不同体现了电场提供能量的多少。该研究可为CF_(3)SO_(2)F的基础理化性能研究提供参考。Trifluoromethylsulfonyl fluoride(CF_(3)SO_(2)F)is a novel environmentally friendly insulation gas that has attracted widespread attention due to its excellent insulation strength and environmental friendliness.This paper identifies the emission spectra of CF_(3)SO_(2)F under different discharge modes and analyzes the emission spectral characteristics of radiative particles from the discharge perspective.During corona discharge,CF2 emitted a band spectrum of 200 to 400 nm due to the dissociation of CF_(3)SO_(2)F.The associated steady-state decomposition products include CF_(4),C_(2)F_(4),C_(2)F_(6),C_(3)F_(8),SO_(2)F_(2),etc.As the energy provided by the electric field increases,overlapping line and band spectra occur in surface discharge emission spectra.A few elemental particles undergo ionization.In spark discharge,where the energy provided by the electric field is highest,line spectra dominate the emission spectra.Multiple levels of ionization of elemental particles occur.With the increase in energy supplied by the electric field,the ratio of photons in the visible and infrared spectral regions exhibits a“red-shift”phenomenon.The research results indicate that the emission spectra formed by gaseous molecules or elemental particles during partial discharge correlate with steady-state decomposition products.The appearance of characteristic spectra confirms the existence of free radical reactions,while the different ratios of photons reflect the amount of energy provided by the electric field.This study can provide references for the basic physical and chemical properties research of CF_(3)SO_(2)F.

关 键 词：CF_(3)SO_(2)F 发射光谱 局部放电 自由基反应 

分 类 号：TM855[电气工程—高电压与绝缘技术]