电瓷避雷器Issue(4)：25-33,9.DOI:10.16188/j.isa.1003-8337.2025.04.004
采用MARX发生器实现极高变化率脉冲磁场的方法
Method to Achieve Pulse Magnetic Field with Extremely High Rate of Change by MARX Generator
焦云华 1修宏飞 2王志亮 1李军科 2于承航 1艾晓宇 2刘宏旭 1郭琳 1张言溪 1杨波1
作者信息
- 1. 北京机电工程研究所,北京 100074
- 2. 北京华天机电研究所有限公司,北京 100071
- 折叠
摘要
Abstract
The indirect effects of nearby lightning strikes pose a threat to the flight safety and the reliabili-ty of ground equipment.A MARX generator is adopted as the pulse excitation source to test large-sized effectors in the laboratory.This is based on the extremely high level pulse electromagnetic field change rate index of nearby lightning strikes at a distance of 10 meters in GJB 1389B-2022 Electromagnetic en-vironmental effects requirements for systems,and also takes reference to the test method of generating pulse magnetic fields by Helmholtz coils in GJB 8848-2016 Electromagnetic environmental effects test methods for systems.Capacitors of all levels are charged in parallel,and when they are discharged syn-chronously,the charging voltage will be instantly accumulated in series.A very high voltage charging effect is obtained using a lower voltage charging device.We can easily achieve the generation of extreme-ly high rate pulse magnetic fields in large-sized Helmholtz coils with large inductance.Through labora-tory testing examples,the trend of changes in the internal magnetic field of larger sized effectors is ex-plored.Sometimes it is necessary to increase the spacing between Helmholtz coils to no more than 1.5 times the radius,providing a reference for practical engineering testing.关键词
邻近雷击/电磁脉冲/亥姆霍兹线圈/脉冲磁场/磁场变化率Key words
nearby lightning/EMP/Helmholtz coil/pulse magnetic field/magnetic field change rate引用本文复制引用
焦云华,修宏飞,王志亮,李军科,于承航,艾晓宇,刘宏旭,郭琳,张言溪,杨波..采用MARX发生器实现极高变化率脉冲磁场的方法[J].电瓷避雷器,2025,(4):25-33,9.
