用于检测电气设备电晕的盘锥天线的研制  

Development of discone antenna used for detecting corona of electrical equipments

作　　者：刘孝全 周泽宏 崔玉家 黄昊[1] 周茂[1] 姚陈果[2] 

机构地区：[1]重庆市电力公司,重庆400014 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《电工电能新技术》2012年第2期74-78,共5页Advanced Technology of Electrical Engineering and Energy

基　　金：国家重点实验室自主研究课题(2007DA10512709104);重庆市科技攻关计划(院士专项)(CSCT2010BC3003);重庆市电力公司科学技术项目(2011渝电科技18#)

摘　　要：为实现对变电站内电气设备电晕放电的检测,研究并设计了宽频带、高增益和水平面(H面)全向性的天线作为电晕检测的传感器。通过分析盘锥天线的辐射特性和特性阻抗,确定其设计为电晕检测天线具有优势,用离散化方法加工出的盘锥天线,在10MHz～1GHz以上具有良好的频率响应特性,平均增益4dB以上,在变电站检测试验中表现出良好的电晕放电信号接收能力。基于该天线可以开发出固定式或车载式电晕监测和定位系统,该系统可以监测整个变电站设备的电晕情况并且其工作不与设备发生接触。For detecting corona discharge of electrical equipments within the substation,a wideband,high gain and horizontal plane omnidirectional antenna is researched for corona detecting sensor.Characteristic radiation and characteristic impedance of discone antenna is analyzed,and the result confirms that it is dominant to design a discone antenna as corona detecting antenna.The discone antenna with band from 10MHz to above 1GHz and average gain above 4dB is made via discrete method,and it shows good corona discharge signals detecting performance in substation measurement test.Fixed and mounted corona monitoring system can be developed based on this antenna,and the system can monitor corona levels of electrical equipments within substation,and it is noncontact with equipments during working conditions.

关 键 词：检测 变电站 电气设备 电晕放电 盘锥天线 

分 类 号：TM83[电气工程—高电压与绝缘技术]