摘要
为了分析进入城镇的超高压架空输电线路对周围环境的影响,基于模拟电荷法,建立了超高压架空输电线路(带避雷线)的工频电场数学模型。以单回三相输电线路为例,介绍了超高压架空输电线路下方电场强度的计算方法。重点分析了单回、多回线路在不同的排列方式、相序布置及高度下,对超高压架空输电线路工频电场分布的影响;结合环境评估标准,探讨了如何布置线路有效地减小电场。最后从环境保护的角度,总结了减小超高压架空输电线路对所穿越地区影响的方法及措施。
Mathematical model of power frequency electric field is established based on Charge Simulation Method(CSM) to analyze power frequency electric field caused by EHV lines with overhead ground wires and its effect, which are entering the megalopolis. Calculative method on the electric field under the transmission lines is analyzed and validated. According to the criterion of environmental evaluation, the distributing characteristic of electric field is summarized, in case of various arrangement manners of lines. At last, some advice and methods of eliminating electric field under the transmission lines entering the megalopolis is proposed with regard to protecting environment.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第4期10-14,共5页
Journal of Chongqing University
基金
教育部科学技术重点项目(02050)
重庆大学高电压与电工新技术教育部重点实验室资助项目
关键词
超高压架空输电线
工频电场
数学模型
环境评估
EHV transmission lines
power frequency electric field
mathematical model
environmental assessment
