摘要
长距离高压输电线路贯穿不同海拔区域,而不同海拔区域的天气条件变化很大。采用电荷模拟方法对雷击水平导线进行建模,探讨了天气条件(空气密度和湿度)对雷电击距的影响,并导出了用于计算天气条件对接地水平导线击距影响的表达式。
The high voltage transmission lines are very long and extend in different regions and at different altitudes while air conditions vary dramatically. The physical modeling approach is developed to investigate the effect of weather conditions like air density and humidity on lateral lightning striking distance. An electromagnetic model has been constructed by using charge simulation method to model the lightning stroke to horizontal conductor.
出处
《南方电网技术》
2007年第2期36-39,共4页
Southern Power System Technology
基金
国家自然科学基金重点项目(50737001)
关键词
雷电先导
水平导线
空气密度
湿度
电荷模拟方法
击距
lightning leader
horizontal conductor
air density
humidity
charge simulation method
striking distance
