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.
出处
《电网技术》
EI
CSCD
北大核心
2005年第11期5-8,共4页
Power System Technology
