基于QMU的高空电磁脉冲下电气电子设备易损性评估方法

董宁; 孙颖力; 王宗扬; 谢彦召; 陈宇浩

doi:10.11884/HPLPB202133.210386

基于QMU的高空电磁脉冲下电气电子设备易损性评估方法

doi: 10.11884/HPLPB202133.210386

1.
西安交通大学电力设备电气绝缘国家重点实验室, 瞬态电磁环境与应用国际联合研究中心,西安 710049
2.
北京航天发射技术研究所, 北京100076

基金项目: 中国核工业集团有限公司领创科研项目

详细信息

作者简介:
董　宁，dongning96@163.com

通讯作者:
谢彦召，yzxie@xjtu.edu.cn

中图分类号: O441.2
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- 被引次数: 0
出版历程
- 收稿日期: 2021-08-31
- 修回日期: 2021-11-09
- 网络出版日期: 2021-11-17
- 刊出日期: 2021-12-15

Threat assessment method based on quantification of margins and uncertainties for electrical electronic equipment under high-altitude electromagnetic pulse

1.
State Key Laboratory of Electrical Insulation and Power Equipment, National Center for International Research on Transient Electromagnetic Environments and Applications, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
2.
Beijing Institute of Space Launch Technology, Beijing 100076, China

摘要

摘要: 高空电磁脉冲（HEMP）可能造成广域基础设施的故障或损毁，考虑到经济原因，需要科学合理地评估其中关键电气电子设备在HEMP辐照下的易损性。将不确定性量化与设备效应评估相结合，总结出基于裕量与不确定性量化（QMU）的电气电子设备易损性评估方法及其工作流程，包括：筛选设备关键参数，通常为耦合通道电流、电压的范数；通过HEMP环境及其与设备耦合的数值仿真及不确定性量化，得到HEMP下设备关键参数的概率分布，作为设备的威胁水平；对工作状态下设备进行HEMP效应试验，通过统计推断得到设备效应阈值概率分布，作为设备在威胁下的强度；计算威胁水平与设备强度间的距离，量化设备关键参数的裕量及其不确定性，评估HEMP下的设备易损性。基于QMU的电气电子设备易损性评估方法还可为后续防护设计提供基础数据和评估方法。
- 高空电磁脉冲 /
- 裕量与不确定性量化 /
- 易损性评估 /
- 不确定性量化 /
- 场线耦合
Abstract: High altitude electromagnetic pulse (HEMP) may cause failure or damage to wide-area infrastructure. For economic reasons, it is necessary to evaluate the vulnerability of key electrical and electronic equipment under HEMP This study combines uncertainty quantification with equipment effect assessment. Based on the idea of margins and uncertainties quantification (QMU), this paper summarizes the procedures of vulnerability assessment method for electrical and electronic equipment based on QMU. First, select the key parameters of the equipment, usually the norm of coupling channel current and voltage; Second, obtain the probability distribution of key parameters under HEMP as the stress of equipment by numerical simulation and uncertainty quantification; Then, carry out the HEMP effect test and estimate the probability distribution of equipment effect threshold as the strength of the equipment; Finally, by calculating the Euclidean distance between stress and strength of the equipment, calculate the QMU metric and evaluate the equipment vulnerability by the QMU method. This study uses an example to illustrate the feasibility and procedure of the vulnerability assessment method based on QMU.
- high-altitude electromagnetic pulse /
- quantification of margins and uncertainty /
- vulnerability assessment /
- uncertainty quantification /
- field-to-line coupling

HTML全文

图 1 基于QMU的电气电子设备HEMP易损性评估工作流程

Figure 1. Procedures of the QMU-based vulnerability assessment for electrical and electronic equipment under HEMP

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图 2 HEMP与设备耦合过程不确定参数示意图

Figure 2. 　Uncertainty parameters within the coupling process between HEMP and equipment

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图 3 　仰角与极化角分布示意图

Figure 3. 　Distribution of elevation angle and polarization angle

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图 4 　脉冲电流注入效应试验平台示意图

Figure 4. 　Pulse current injection effect test platform

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图 5 用于QMU易损性评估的设备威胁电平、效应阈值概率分布曲线

Figure 5. Probability density function and cumulative distribution function of coupling current amplitude under HEMP (stress) and the effect threshold (strength)

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图 6 　设备的威胁水平和效应阈值的蒙特卡罗采样

Figure 6. Sample seta of the stress and strength of equipment by 1000 times Monte-Carlo sampling

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