摘要
采用传输线理论,提出有损耗地面的情况下外电磁场对近面有限长导线的感应电流和分布电压的公式。讨论不同的高度、地电导率、外场入射角等对近面有限长导线感应电流和分布电压幅度的影响。计算结果表明,近地面处一根暴露于外场环境中的几十米长电缆,其感应电流峰值一般可达上千安培。
This paper discusses induced current/voltage formulas for the field-to-transmission line coupling calculation using the transmission line theory. The dependence of cables with finite length near the ground on different heights, conductivities and incident angles of the external field, etc. are calculated. Results show that the peak value of the external electromagnetic field induced current in cables of several meters long near the ground can reach kiloampere.
出处
《电子科技》
2005年第12期16-19,23,共5页
Electronic Science and Technology
关键词
高空电磁脉冲
电磁耦合
传榆线
电磁瞬态分析
HEMP
electromagnetic coupling
transmission lines
electromagnetic transient analysis
