我国±500kV直流输电工程的电磁环境问题  

ELECTROMAGNETIC ENVIRONMENT PROBLEM BROUGHT ABOUT BY ±500kV DC TRANSMISSION PROJECT IN CHINA

作　　者：吴桂芳[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100085

出　　处：《电网技术》2005年第11期5-8,共4页Power System Technology

摘　　要：近年来我国±500kV直流输电工程的建设发展迅速,随之带来的电磁环境问题已成为影响电网建设和发展的重要因素之一。文章根据对葛洲坝—上海、天生桥—广州、三峡—常州、三峡—广东以及贵州—广东±500kV直流输电工程电磁环境的测量结果,从电场效应、可听噪声、无线电和电视干扰以及接地极地电位等方面,对我国±500kV直流输电工程的电磁环境问题进行了总结,并针对目前存在的突出问题给出了建议,如慎重选择换流站站址,对强噪声源采用屏蔽、隔离和吸声降噪措施,合理选择换流站接地极的形状和结构等。In recent years the construction of ±500kV DC power transmission project in China develops rapidly and the subsequence electromagnetic environment problem becomes one of the main factors influencing the development and construction of power networks. Based on the measured results of electromagnetic environments of existing ±500kV DC power transmission projects in China, the electromagnetic environment problem brought about by domestic ±500kV DC power transmission projects is summarized in the aspects of field effect, audible noise, radio and television interferences, the potential of grounding poles and so on. Some suggestions are given for the existing striking problems, such as carefully choosing the location to arrange the coverter station, the screening of strong noise sources, noise reduction measures including noise isolation and absorption, rationally choosing the shape and structure of grounding poles in converter stations, etc.

关 键 词：直流输电工程 500kV 环境问题 建设发展 电网建设 电磁环境 电场效应 电视干扰 降噪措施 接地极 换流站 葛洲坝 天生桥 地电位 无线电 噪声源 三峡 广东 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM63