电测与仪表2025，Vol.62Issue(9)：202-209,8.DOI:10.19753/j.issn1001-1390.2025.09.023
GIS间歇性局部放电泄漏电磁波检测传感器设计研究
Design and research of high sensitive GIS intermittent partial discharge leakage electromagnetic wave detection sensor
摘要
Abstract
Aiming at the requirement of highly sensitive perception of gas insulated switchgear(GIS)intermittent partial discharge leakage electromagnetic wave.In this paper,the rectangular waveguide theory is used to analyze the leakage electromagnetic wave propagation characteristics and energy concentration frequency band of GIS rec-tangular pouring hole combined with finite element simulation,and an external GIS partial discharge detection back-cavity butterfly antenna sensor is designed by combining the design principle of butterfly antenna and trape-zoidal gradient balun.In the 1 GHz～3 GHz frequency band,the maximum voltage standing wave ratio(VSWR)of the sensor is less than 7,the minimum VSWR is 1.1,and the average VSWR is 2.9;in the 0.3 GHz～1 GHz frequency band,the maximum and minimum VSWR reach 42.8 and 7,respectively,and the average stand-ing wave ratio can reach 20.6.According to the design results,the antenna sensor was trial-produced and tested with intermittent partial discharge of typical metal protrusions.The test results show that the sensor designed in this paper can stably sense the partial discharge electromagnetic wave signal leakage of the pouring hole,and the electromagnetic wave signal energy concentration frequency band is greater than 1 GHz,which is consistent with the theoretical analysis of the leakage electromagnetic wave of the pouring hole and the VSWR performance of the sensor design.关键词
GIS/间歇性局部放电/外置式/浇注孔/天线传感器Key words
GIS/intermittent partial discharge/external/pouring hole/antenna sensor分类
信息技术与安全科学引用本文复制引用
邱虎,杨旭,罗传仙,张静,文豪,张国治..GIS间歇性局部放电泄漏电磁波检测传感器设计研究[J].电测与仪表,2025,62(9):202-209,8.基金项目
国家电网有限公司总部管理科技项目资助(524625200028) （524625200028）
