摘要
耦合地线是提高输电线路防雷性能的重要措施。为研究其提高线路耐雷水平效果,利用仿真软件PSCAD建立耦合地线的仿真模型进行雷击暂态分析。通过仿真得到架设耦合地线后对雷电流的分流作用,以及架设耦合地线后耐雷水平提高的程度。进一步分析耦合地线提高输电线路耐雷水平的程度与其位置的关系,得出输电线路中耦合地线架设的最佳位置,提高耦合地线的利用率。
The coupling ground wire is an important method to improve the ability of lightning protection of the transmission line.In order to investigate the its ability of improving the lightning protection,the simulation software PSCAD is used to build up an simulation model of the coupling ground wire to analyze lighting transient.Through the simulation,we can know the effects and the improvement to shunt the lightning current of establishing the coupling ground wire.Further analysis of the relationship of the improvement of lightning protection and the position of the coupling ground wire can find out the best position of the transmission line to coupling ground wire erection.It can also increase the utilization of the coupling ground wire.
出处
《华东电力》
北大核心
2013年第1期106-109,共4页
East China Electric Power
基金
国家重点基础研究发展计划项目(2009CB7-24507)~~
关键词
耦合地线
PSCAD
电力线
耐雷水平
coupling ground wire
PSCAD
lightning with standing level
shunting effect
