摘要
介绍了前苏联、日本和美国的特高压输电线路的研发简况、国外解决工频电磁环境问题的不同做法以及我国解决500kV线路工频电磁环境的措施。在相导线对地距离和输送电流相同的条件下,对国外已研发的三种特高压输电线路和作者建议研发的紧凑型特高压输电线路的工频电场和磁场分布进行了计算和比较,所得分析结论可为我国特高压输电线路的相导线布置选型提供参考依据。
The strategy and measures for solving the power frequency electromagnetic environment problems in developing their UHV transmission lines in former USSR, Japan and the US are briefly introduced and analyzed. Based on the construction and operation experiences gained from 500kV transmission lines in China a new phase conductor configuration scheme (compact line with verse triangle configuration of phase conductors) is proposed. Distributions of power frequency electric field and magnetic field for the above mentioned three types of UHV transmission lines abroad and that of the proposed scheme to be developed are calculated under the same control condition. The obtained results should be helpful in choosing and determining the phase conductor configuration and the type of tower of the first UHV lines in China.
出处
《电网技术》
EI
CSCD
北大核心
2005年第8期1-7,共7页
Power System Technology
关键词
特高压输电线路
紧凑型特高压输电线路
工频电场
工频电磁环境
相导线布置
Electric conductors
Electric lines
Electric power systems
Electrical engineering
Electromagnetic fields
Frequency allocation
Magnetic fields
Modular construction
Strategic planning
