超高压交叉线路空间电磁环境分析

Analysis of Space Electromagnetic Environment of EHV Crossing Transmission Lines

摘要:

针对存在交叉跨越的超高压输电线路，采用有限元法研究交叉线路三维空间电磁环境，分析不同相序排列及不同交叉角对空间电磁环境的影响。对于规划中或已建成的输电线路，当目标区域出现环境电磁场超标时，引入混沌变参数粒子群算法搜索屏蔽效果最好的屏蔽线架设位置，从而实现目标区域的最优屏蔽。

Abstract:

Aiming at extra high voltage (EHV) transmission lines with crossing, three dimensional space electromagnetic environment of EHV crossing lines is studied by finite element method, and the influence of different phase sequence arrangement and different crossing angles on the space electromagnetic environment is analyzed. For the transmission lines in plan or having been built, chaotic particle swarm optimization algorithm with variable parameters is introduced when electromagnetic environment exceeds the standard in the target area, and the optimal erecting position of shielding lines is searched to make the best shielding effect, thus, the optimal shielding of the target area is achieved.