特高压输电线路电磁环境研究的matlab实现

Matlab realization of research on electromagnetic environment of UHV transmission lines

利用matlab软件对交流特高压输电线路的工频电场、工频磁场进行了详细的仿真研究,分别介绍了仿真模型的建立方法和程序的具体模块,并采用算例进行仿真,仿真结果表明,避雷线对输电线周围电磁场没有太大影响,而导线对地高度越高,地面附近的电场强度越弱。由此结果可见,采用增加导线对地高度等措施可以减小输电线路下的工频电场。仿真结果对特高压输电线路的建设有一定的指导意义。

With matlab,detailed simulation research on the power frequency electrical field and power frequency magnetic field of UHV transmission line was made.The method to establish the simulation models and concrete modules of the program were introduced,and calculated examples were used for simulation.The result of simulation showed that,lightning shield lines had few effects on electromagnetic field beneath the transmission lines,while electrical field above the ground became weaker as the transmission lines became higher toward the ground.From the result it can be seen that it can reduce the power frequency electric field beneath the transmission lines to increase height of transmission lines and so on.The result of simulation had important guiding meaning to the construction of UHV transmission lines.