基于紫外荧光光导的增强型局部放电光电传感技术对比研究  

Comparative study of enhanced partial discharge photoelectric sensing technology based on ultraviolet fluorescence photoconductivity

作　　者：何楠 刘弘景 刘宏亮 刘可文 任明[2] HE Nan;LIU Hongjing;LIU Hongliang;LIU Kewen;REN Ming(State Grid Beijing Electric Power Research Institute,Beijing 100075,China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]国网北京市电力公司电力科学研究院,北京100075 [2]电工材料电气绝缘全国重点实验室,西安交通大学,陕西西安710049

出　　处：《电工电能新技术》2024年第2期87-94,共8页Advanced Technology of Electrical Engineering and Energy

基　　金：国网北京市电力公司科技项目(520223200065)。

摘　　要：本文从提升局部放电光电检测效率角度出发,采用Dy^(3+)和Ce^(3+)掺杂荧光玻璃作为前端耦合光导,提升了放电紫外光谱波段的检测效率,并通过荧光光导与单光子器件相配合的方式,实现了宽光谱、高灵敏度的局部放电光电探测。研究中,首先对两种荧光光导的激发光谱和荧光光谱特性进行了对比分析,计算了其与硅光电倍增管和光电倍增管的匹配效率,在此基础上对两种光导的光度衰减时间和荧光脉冲滞后时间进行了测定,最后通过局部放电的实测,对比分析了两种光导测试系统的灵敏度、线性度及其在放电统计特性上的差异。In this paper,from the perspective of improving the photoelectric detection efficiency of partial discharge,Dy^(3+)and Ce^(3+)doped fluorescent glasses are used as the front-end coupling photoconductive,which improves the detection efficiency of partial discharge in ultraviolet spectral band.Through the combination of fluorescent photoconductive and single photon device,a wide spectrum and high sensitivity partial discharge photoelectric detection system is realized.In the study,the excitation spectrum and fluorescence spectrum characteristics of two photoconductors were compared and analyzed,and their matching efficiency with silicon photomultiplier tube and photomultiplier tube was calculated.On this basis,the fluorescence photometric decay time and fluorescence pulse lag time were measured.Finally,the sensitivity,linearity and discharge statistical characteristics of above two photoconductor test systems were compared and analyzed by partial discharge measurement.

关 键 词：局部放电 光测法 荧光光导 光电效率 光电脉冲 

分 类 号：TM855[电气工程—高电压与绝缘技术]