输电线路对短波信号的二次辐射计算模型  

Reradiate Computation Model of Transmission Line to the Shortwave

作　　者：张小武[1] 干喆渊[1] 

机构地区：[1]国网电力科学研究院,武汉430074

出　　处：《高电压技术》2009年第4期861-865,共5页High Voltage Engineering

基　　金：国家"十一五"科技支撑计划项目(2006BAA02A09)~~

摘　　要：输电线路对邻近的无线台站的无源干扰目前没有成熟的计算方法,其主要原因在于实际的输电线路模型太过复杂,按照实体模型建模分析计算量过于庞大,计算机无法处理,为了解决此问题,从二次辐射产生的机理出发,采用等效干扰的思路对杆塔和线路进行合理的简化,提出了可用于计算高压输电线路二次辐射场强的简化模型,实现了工程上无源干扰的模拟仿真。以短波测向台站为研究对象,通过与试验数据对比,证明了该简化模型有足够的准确度,可应用于今后高电压等级输电线路与相邻无线电台站间的电磁防护间距设计。The actual model of the transmission line and tower is too complex, the matrix formed by the actual model will exceed the computer＇s ability, so there is no mature way to analyze the passive interference of the high voltage transmission line to the wireless station nearby. Beginning with the theory of the passive interference , we gave the simplified model of the tower and the transmission line by using equivalent way, which made the simulation of the passive interference to be possible . The simplified model is verified by comparing with the direction finding error experiments data, and it is proved that it can be used in designing the protecting distance between the UHV transmission line and the wireless station nearby in the future.

关 键 词：无源干扰 输电线路 二次辐射 测向误差 防护间距 简化模型 

分 类 号：TM726[电气工程—电力系统及自动化]