交流输电线路的无线电干扰计算方法  

Calculation Methods of Radio Interference Caused by AC Transmission Lines

作　　者：庄池杰[1] 曾嵘[1] 龚有军[1] 何金良[1] 

机构地区：[1]清华大学电机系,北京市海淀区100084

出　　处：《电网技术》2008年第2期56-60,共5页Power System Technology

摘　　要：高压输电线路的无线电干扰问题日益引起人们的关注。结合实际线路参数及实测数据,文章比较了常见的无线电干扰经验计算公式间的差异。在介绍激发函数法计算无线电干扰基本原理的基础上,比较了不同激发函数之间的差异。讨论了无线电干扰限值标准与工程实践中的问题,并分析了计算值与实测值误差的可能来源,指出土壤电阻率、导线表面场强等对计算结果有重要影响。More and more attentions are paid to the radio interference caused by AC high voltage transmission lines. Based on the parameters of actual transmission lines and measured data, the authors compare the discrepancies among frequently used empirical formulae for radio interference. On the basis of introducing the basic principle of radio interference calculation by excitation function method, the discrepancies among various excitation functions are compared. The standard of limit values of radio interference and the problems in engineering practice are discussed, the possible sources of the errors between calculation results and measured results are analyzed and it is pointed out that the soil resistivity, surface electrical field strength of conductor and so on greatly affect calculation results.

关 键 词：无线电干扰 交流输电线路 激发函数法 经验公式 电力系统 

分 类 号：TM726[电气工程—电力系统及自动化]