董芃欣 1刘宏伟 1袁建强 1朱建瑜 1王杰 1杨杰1
作者信息
- 1. 中国工程物理研究院流体物理研究所 脉冲功率技术重点实验室,四川 绵阳 621900
- 折叠
摘要
Abstract
[Background]Lightning is a transient electrical discharge that occurs during thunderstorms.The current generated by lightning can reach up to 200 kA,causing significant damage to aircraft,overhead power lines,electronic information equipment,and field military equipment.Therefore,the lightning strike test is necessary.[Purpose]To address the requirements of the pulse current generators in the lightning strike test,a modular device for generating the lightning current is designed and developed in this study,which is used to simulate the direct effects and indirect effects of lightning current.[Methods]The modular lightning current simulation device is mainly composed of four modules A,B,C,and D,which can respectively generate the component A initial lightning current,component B intermediate current,component C continuous current,and component D restrike current of the lightning current.The electrical parameters of the four modules are designed based on the theoretical analysis and the circuit simulation.Module A and Module D adopt the multi-branch parallel discharge scheme of energy storage capacitors and gas switches.The thyristor is used in module B,and module C adopts the scheme to combine the super capacitor and the solid-state switch to cut off the current directly.Considering the requirements of different scenarios for the loading distance,the loading distance can be adjusted within the range of 5 meters to 30 meters by controlling the cable parameters,wave-shaping resistance and loading chamber.[Results]The modular device is developed and the preliminary experimental test is carried out.The current waveform output meets the requirements of the lightning current waveform in GJB 1389A-2005.The modular device is integrated into the standard container,which provides support for the lightning strike test of various equipment in different sites.[Conclusions]This work designs and develops a modular lightning current simulation device through theoretical analysis,circuit simulation,and experimental testing.The device can generate the lightning current waveforms that meet the standard,which provides support for the lightning strike tests.关键词
雷击电流/雷电直接效应/雷电间接效应/脉冲电流发生器/模块化装置Key words
lightning current/direct effects of lightning/indirect effects of lightning/pulse current generator/modular device分类
信息技术与安全科学
