尖端导体电晕放电试验研究  

Experimental Research on Corona Discharge of the Point Conductor

作　　者：雷晓勇[1] 刘尚合[1] 胡小峰[1] 贾明捷[2] 万博[1] 

机构地区：[1]军械工程学院静电与电磁防护研究所,河北石家庄050003 [2]北京航空工程技术中心,北京100076

出　　处：《计算机测量与控制》2011年第9期2197-2199,2213,共4页Computer Measurement &Control

基　　金：国家自然科学基金(1092750661001050)

摘　　要：电晕放电是高压电力工程及航空航天领域研究的重点及难点问题;为研究尖端导体电晕放电的辐射特点,设计了电晕放电试验模拟系统;利用测试系统及天线在微波暗室内进行了不同测试距离、不同放电电压及不同尖端导体长度条件下的试验;通过对试验数据的分析可知,电晕放电辐射信号呈衰减振荡模式;电晕放电脉冲重复率随着充电电压的增大而增加;天线接收的辐射信号能量与测试距离成反比;随着充电电压的增加,信号辐射功率呈增加趋势;试验研究结果为输变电工程、航空航天装备的电磁环境分析提供参考。Currently, corona discharge research in the field of high voltage electric power engineering and aerial technique is performed signifieantly and difficultly~ In order to investigate the radiation charaeteristics of the corona discharge of the point conductor, the experimen- tal simulation system of coronadischarge was designed. With the testing system and the antenna, experiments in the aneehoic chamber were performed with the different testing distance, discharge voltage and length of the point conductor. Experimental result analysis shows that, the radiation signal of the corona discharge appears in the form of attenuation and oscillation, the repetition rate of the corona discharge pulse increases with the charging voltage proportionally, the radiation energy received by antenna is with the inverse ratio to the testing distance, the radiation energy increases with the increment of charging voltage. The results provide the technical references for the electromagnetic en- vironment analysis of the transmission and transformation project and the aerial equipments.

关 键 词：尖端导体 电晕放电 电磁辐射 信号频谱 

分 类 号：O441[理学—电磁学]