CAJ | 학술논문

分析线缆的电磁脉冲效应机理是采取措施、加强线缆电磁防护的必要步骤。以高空核爆电磁脉冲（ HEMP ）作为入射源，基于时域有限差分（ FDTD）方法和Noda细线模型，分析计算了不同状态下近地面线缆的电磁脉冲效应。结果表明，由于受到地面环境场的影响，地面附近开路线缆的响应电流其幅值比在自由空间中的小，振荡频率亦在逐渐降低；带负载线缆在电磁脉冲的作用下，负载的响应电流随阻抗的不同亦呈现出明显不同的特征。所得结论有利于指导线缆的电磁防护。
분석선람적전자맥충효응궤리시채취조시、가강선람전자방호적필요보취。이고공핵폭전자맥충（ HEMP ）작위입사원，기우시역유한차분（ FDTD）방법화Noda세선모형，분석계산료불동상태하근지면선람적전자맥충효응。결과표명，유우수도지면배경장적영향，지면부근개로선람적향응전류기폭치비재자유공간중적소，진탕빈솔역재축점강저；대부재선람재전자맥충적작용하，부재적향응전류수조항적불동역정현출명현불동적특정。소득결론유리우지도선람적전자방호。
The analysis on the cable effect mechanism under electromagnetic pulse is the necessary step to take the measures to strengthen the cable electromagnetic protection,which possess important defense and military significance.In this paper,high-altitude nuclear electromagnetic pulse (HEMP) acts as the incident source.By the finite-difference time-domain (FDTD) method and Noda thin line model,the electromagnetic pulse effects of the cable near ground under different conditions are analyzed and calculated.The results show that,due to the ground environment field,the current response amplitude of open cable near the ground is smaller than that in a free space,and the oscillation frequency is also gradually reduced;in the case of the cables with load in the electromagnetic pulse,the response current of load is also found significantly different characteristics with different impedance.The conclusions can be the guidance for cable electromagnetic protection.