超高压交流输电线路的无线电干扰计算  

Radio Interference Calculation of 500kV EHV Transmission Lines

作　　者：肖阶平 王凯奇 杜刚[1] 陈璟毅 邓传海[1] 

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012 [2]浙江省电力公司湖州供电公司,浙江湖州313000

出　　处：《电气技术》2016年第4期49-52,58,共5页Electrical Engineering

摘　　要：本文主要针对超高压架空输电线路的无线电干扰用Matlab进行仿真计算研究。本文分析了线路参数对输电线下方无线电干扰的影响。比较了各科研机构提出的无线电干扰计算公式的计算结果。并通过建立二维模型,得到了输电线不同线路参数(分裂间距、子导线根数和子导线截面)下对超高压线路无线电干扰的分布规律。结果表明:具线路中心越远,线路参数的影响越小;导线截面和分裂间距对无线电干扰的影响相似,为反相关,但截面积的影响更显著;随着分裂间距的增大,输电线下方的无线电干扰水平呈先减小后增大趋势;输电线的排列方式对输电线路下方的无线电干扰水平有一定影响。This article mainly aims at the radio interference of ultra-high voltage overhead transmission line using Matlab simulation research. This paper analyzes the circuit parameters on the transmission line below the effects of radio interference. Compared the common experience of radio interference calculation formula of differences. Split and the simulation analysis of the transmission line spacing, number of wire and the wire section of radio interference for ehv lines. The results showed that： with the wire splitting root number and wire cross-section increases, power line at the bottom of the radio interference level decreased; With the increase of split spacing, transmission line at the bottom of the radio interference level showed a trend of increase with the decrease of the first; Transmission line arrangement of transmission line at the bottom of the radio interference level has a certain influence.

关 键 词：500KV输电线路 无线电干扰 输电线路参数 悬链线 电位系数 

分 类 号：TM75[电气工程—电力系统及自动化]