同塔四回路架空输电线路不同排列方式对周围的电磁影响分析

ANALYSIS OF THE ELECTROMAGNETIC INFLUENCE OF DIFFERENT ARRANGEMENT OF FOUR-CIRCUIT OVERHEAD TRANSMISSION LINES IN THE SAME TOWER ON THE SURROUNDING

随着社会经济的不断发展,高压输变电网的建设技术也随之发展提高,输电线路的架设方式也变的越来越多样化,为充分利用有限的高压走廊,其中架空线路的架设越来越多的采用多回路同塔架设的方式。但人们也越来越担心多回路架空线路是否会对周围产生更大电磁环境的影响。本文以同塔四回路架空高压线为例,通过对相同电压等级的同塔四回路输电线在采取不同排列方式时对周围环境电磁影响比较分析,探讨不同架线方式对周围环境的影响程度,从减小环境影响角度考虑对今后的高压输电线路架线方式提出建议,也为输变电工程的环境影响评价提供一定的依据。

With the con tinuous development of society and economy,,Meanwhile, the construction technology of high voltage transmission and transformer network has improved,and the erecting modes of transmission lines are becoming growingly diverse as well. In order to take full advantage of the limited high tension corridor, more and more erection of overhead networks adopts the method of multi-loop circuit tower. However, there is also increasing concern about the impact of multiple loop overhead networks on the larger electromagnetic environment arisen around them.This paper takes the overhead lines of four-circuit transmission lines on same tower as an example. Through comparing and analyzing the electromagnetic influence of these different-mode transmission lines with the same voltage level on the surrounding environment, the effects with different erecting modes will be discussed. Then, from the perspective of reducing the environmental impact, some suggestions are given for the future stringing of high-tension transmission line. Furthermore, the author tries to provide a basis for the environmental impact assessment of power transmission engineering.