电磁脉冲在传输线上激励电流规律研究

Study about induced current law by EMP on transmission line

摘要:

对传输线在电磁脉冲环境下的感应电流规律进行了研究。分别在传输线一端接负载、一端接地，以及两端分别接不同负载状态下，研究了感应电流、负载电压，以及消耗功率的变化规律。在实验上采用非接触脉冲电流注入方式，理论研究采用传输线模型，二者得到了相同的规律。结果表明，电磁脉冲环境下传输线感应电流、端口电压与负载大小有直接的关系，且在某个阻值附近负载消耗功率出现极大值。

Abstract:

The induced current law on transmission line was studied in electromagnetic pulsed environment. And the variety law including induced current、load voltage、the power were researched according to the following situations: one terminal in short-circuit state and another terminal linked with resistance; two terminals connected with different resistances respectively. The way of non-contact pulsed current injection was taken on the experiment, and the theoretical analysis were done with the transmission line theory model. The results of both ways were identical rule. The results indicated that in electromagnetic pulsed environment the induced current on transmission line and the voltage on the end port resistance had direct relationships with value of load. The dissipative energy by the resistance would reach the maximum value when special resistance values were selected.