空管雷达防雷保护方案效果评估

Effect Evaluation of ATC Radar Lightning Protection Scheme

为了准确评估空管雷达防雷效果,提出了一种利用电磁暂态分析程序(ATP-EMTP)对空管雷达雷击风险进行评估的方法.首先对未加保护的空管雷达雷击风险进行了评估,在此基础上,为空管雷达设计了一种双重保护加两级防护的防雷方案,并运用本文评估方法对该方案进行了效果评估.结果表明:采取该防雷方案后,雷达设备年雷击损坏次数为3.3×10-37,防雷效果良好,能够满足空管雷达全天候工作需求.

To evaluate the lightning protection effect of ATC Radar accurately, this paper presents a method to evaluate lightning risk of ATC radar by employing the simulation of alternative transient program-electromagnetic transient program （ATP-EMTP）, based on which, a lightning protection scheme is designed for ATC radar that includes the double protection and the two-stage shielding. And the effect of this scheme is assessed by the evaluation method proposed in this paper. Results show that the radar equipment stroke-incidence times of one year is 3.3×10^-37, SO the effect of lightning protection is good enough to meet the demand of ATC radar for all-weather operations.