摘要
针对高强度辐射场(HIRF)实验室条件下无法构建,单纯辐照法难以有效开展系统级电磁辐射敏感度及安全裕度试验的问题,对电磁注入等效替代辐照理论、方法及实现技术进行了研究。本着有限目标的原则,针对典型互联系统,以设备端口的响应信号相等作为等效依据,建立了注入替代辐照的等效模型和强场条件下注入电压源外推模型,基于Baum-Liu-Tesche(BLT)方程和传输线阻抗分析理论,给出了互联传输线终端响应的计算方法,确定了注入法等效替代辐照法应满足的2个条件,即等效激励源相等和激励源输出阻抗相等,理论推导了注入电压与辐照场强之间的等效对应关系。采用注入耦合模块作为辅助试验设备,实现了互联系统中前向电压信号的提取、干扰信号的注入以及正常传输信号的有效监测;提出的注入与辐照相结合的互联系统电磁辐射效应试验方法,为正确评价互联系统的电磁辐射敏感度与安全裕度提供了切实可行的研究手段和技术支撑。
At present, high intensity radiated field （HIRF} cannot be simulated under the condition of laboratory, and it is hard to carry out the electromagnetic radiated susceptibility and safety margin test for system. In order to solve the problems above, we researched the theory, method and implementation technique of substuting injection for radiation. In line with the principle of limited target, in allusion to typical interconnected system, the equal response voltage on the equipment cable port was regarded as the equivalent principle. The equivalent substitute model and injection source extrapolation model in HIRF condition were established. The terminal response voltage calculation method was presented based on the Baum-Liu-Tesche（BLT） equation and the transmission line theory. Two conditions of substuting injection for radiation were determined. One was the same equivalent source, and the other was the same output impedance. The equivalent correspondent relation between injection voltage and radiated field was put forward theoretically. Injection coupling module was adopted as support equipment for the equivalent substitute test. The forward voltage extraction, interference signal injection and normal transmission signal monitoring in interconnecteds system were achieved. A new electromagnetic environment effect test method combining injection with radiation for interconnected systems was proposed, providing practical research methods and technique supports to correctly evaluate the electromagnetic susceptibility and safety margin of interconnection system.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2012年第9期2293-2301,共9页
High Voltage Engineering
基金
国家安全重大基础研究发展计划(973计划)(6131380301)
国家自然科学基金(61040003)~~
关键词
互联系统
高强度辐射场(HIRF)
注入法
辐照法
等效替代
理论模型
实现技术
interconnected system
high intensity radiated field （HIRF）
injection method
radiation method
equivalent substitute
theoretical model
implementation technique
