吉林大学学报(工学版) ›› 2019, Vol. 49 ›› Issue (3): 1009-1016.doi: 10.13229/j.cnki.jdxbgxb20180083

• • 上一篇    

强电磁脉冲下车辆线束快速等效方法

赵昱1(),霍亚飞2   

  1. 1. 吉林大学 通信工程学院,长春 130012
    2. 上海汽车集团股份有限公司乘用车公司,上海201800
  • 收稿日期:2018-01-23 出版日期:2019-05-01 发布日期:2019-07-12
  • 作者简介:赵昱(1971?),女,副教授,博士. 研究方向:电磁兼容. E?mail:yzhao@jlu.edu.cn
  • 基金资助:
    装备预先研究项目(30105030302)

Fast equivalent method for vehicle cables under high intensity electromagnetic pulse illumination

Yu ZHAO1(),Ya⁃fei HUO2   

  1. 1. College of Communication and Engineering, Jilin University, Changchun 130012, China
    2. SAIC MOTOR Passenger Vehicle Co. , Shanghai 201800, China
  • Received:2018-01-23 Online:2019-05-01 Published:2019-07-12

摘要:

线束电磁耦合效应的快速等效方法是传统等效线束方法的一种近似,即在一定观察距离之外,线束的电磁效应可近似等效为一根线缆。与传统方法相比,线束分组方法具有较大的简化,从而进一步缩短了计算时间和所需内存。本文进一步研究了全波分析下快速方法的适用性,并将快速等效算法用于车辆线束,根据实际情况使用CST线缆工作室软件仿真讨论了强电磁脉冲辐照下,接地面电导率和非均匀地起伏高度因素对线束快速等效建模方法的影响,验证了等效方法的适用性;最后将快速算法应用至车内线束典型位置处进行建模分析,取得了良好的等效精度,验证了快速等效算法的实用性。

关键词: 电磁场与微波技术, 等效线束方法, 强电磁脉冲, 复杂地面

Abstract:

Fast equivalent cable bundle model is an approximate to traditional equivalent cable bundle method (ECBM), which the electromagnetic behavior of the cable bundle can be equivalent to only one cable if observed from a certain distance away. Compared with ECBM, cable grouping process is greatly simplified therefore could further save computation time and memory. In this paper, the effectiveness of fast equivalent method in full wave analysis is further investigated, and then the fast method is applied to vehicle cables to test its applicability using CST software. The influence of conductivity of ground plane and the height of irregular ground are considered according to real applications under high intensity electromagnetic pulse illumination. Finally the fast method is applied to typical locations of vehicle model and fairly good equivalent precision are achieved to show its practicability.

Key words: electromagnetic field and microwave technology, equivalent cable bundle method(ECBM), high intensity electromagnetic pulse, complex ground structure

中图分类号: 

  • TN811

图1

地平面上N根导线模型"

图2

快速方法等效模型"

图3

HEMP时域波形图"

图4

HEMP的频谱图"

表1

完整线束终端负载"

终端线缆
12345670
15010010k1k500150k1M50
2501020020M5002015k50

图5

参考线缆0上电磁响应"

表2

ECBM等效线缆参数"

参数G1G2G3
半径111.25
距地高度2219.119.7
导线间距d12=3.15d13=2.7d23=2.71

表3

ECBM等效线束的终端阻抗"

终端线缆
G1G2G3
133.339376333.22
28.3318.18483.86

图6

地面电导率等于1000 S/m时参考线缆上电磁响应"

图7

理想地参考线缆上电磁响应"

图8

凹凸不平大地示意图"

图9

仿真软件中凹凸不平大地示意图"

图10

大地起伏高度为10 mm时参考线缆上电磁响应"

图11

大地起伏高度为50 mm时参考线缆上电磁响应"

图12

HEMP辐照车辆示意图"

图13

车内发动机舱线束模型"

表4

发动机舱完整线束终端负载"

终端导线
1234567
115365520008001000600
246288536606580

图14

发动机舱参考线缆上电磁响应"

图15

车内驾驶舱线束模型"

图16

驾驶舱参考线缆上电磁响应"

图17

车内底盘线束模型"

表5

底盘完整线束终端负载"

终端导线
1234567
150302538101501k
2100121503k1k10k25

图18

参考线缆上电磁响应"

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