航空学报 > 2024, Vol. 45 Issue (23): 330391-330391   doi: 10.7527/S1000-6893.2024.30391

基于大电流注入探头的传导抗扰度预试验方法

赵宏旭1,2, 李梓洋2, 石旭东2()   

  1. 1.中国民航大学 安全科学与工程学院,天津 300300
    2.中国民航大学 电子信息与自动化学院,天津 300300
  • 收稿日期:2024-03-14 修回日期:2024-04-30 接受日期:2024-06-11 出版日期:2024-12-15 发布日期:2024-06-17
  • 通讯作者: 石旭东 E-mail:xdshi@cauc.edu.cn
  • 基金资助:
    天津市教委科研计划项目(2022KJ085)

Conduction immunity pre-test method based on bulk current injection probe

Hongxu ZHAO1,2, Ziyang LI2, Xudong SHI2()   

  1. 1.College of Safety Science and Engineering,Civil Aviation University of China,Tianjin  300300,China
    2.College of Electronic Information and Automation,Civil Aviation University of China,Tianjin  300300,China
  • Received:2024-03-14 Revised:2024-04-30 Accepted:2024-06-11 Online:2024-12-15 Published:2024-06-17
  • Contact: Xudong SHI E-mail:xdshi@cauc.edu.cn
  • Supported by:
    Tianjin Education Commission Scientific Research Project(2022KJ085)

摘要:

传导抗扰度预试验是一种通过仿真建模实现传导抗扰度测试功能的试验方法,可在机载设备研发阶段提供面向初步设计方案的电磁兼容性验证能力。在缺乏大电流注入探头详细设计参数的情况下,提出一种基于集总参数电路模型的探头磁芯磁导率测算方法,并据此建立大电流注入探头及其校准夹具三维仿真模型,通过开展三端口网络参数测试验证探头模型准确性;依据DO160测试标准搭建以大电流注入探头模型为核心的传导抗扰度预试验仿真平台,通过对比不同构型航空线缆终端耦合电压验证预试验仿真平台准确性。验证结果表明:大电流注入探头及传导抗扰度预试验仿真平台与试验装置具有高度一致性。

关键词: 传导抗扰度, 大电流注入, 集总参数电路, 有限元仿真, 相对磁导率

Abstract:

Conduction immunity pre-test is a test method to realize the function of conduction immunity test through simulation modeling, which can provide electromagnetic compatibility verification for the preliminary design scheme in the research and development stage of airborne equipment. In the absence of detailed design parameters of the bulk current injection probe, a method for measuring the permeability of the probe core based on the lumped parameter circuit model is proposed. Based on this, a three-dimensional simulation model of the bulk current injection probe and its calibration fixture is established. The accuracy of the probe model is verified by the three-port network parameter test. According to the DO160 test standard, a pre-test simulation platform of conduction immunity with bulk current injection probe model as the core is built. The accuracy of the pre-test simulation platform is verified by comparing the coupling voltage of different configurations of aviation cable terminals. The verification results show that the bulk current injection probe and the conduction immunity pre-test simulation platform are highly consistent with the test device.

Key words: conduction immunity, bulk current injection, lumped parameter circuit, finite element simulation, relative permeability

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