摘要
电力设备端口特性差异大,注入波形畸变严重,耦合效率低,且其工作电压高,加电状态下开展试验,易引发试验系统故障。目前国内外尚无成熟的电力设备HEMP效应试验方法和试验平台。研究了电力系统与HEMP电流注入试验系统间相互作用的物理过程,提出了基于等效“零电位”的脉冲干扰加载方法,解决了脉冲源内部电路绝缘耐压与功率容量无法承受工频高电压的问题,同时实现了纳秒脉冲在毫秒级工频信号上的相位可控加载与脉冲源输出与电力设备的高效耦合。该方法便于更贴近真实工况下获取待测电力设备的强电磁脉冲效应现象与阈值数据。
[Background]Power equipment ports exhibit significant variations in characteristics,resulting insevere waveform distortion and low coupling efficiency,especially when operating at high voltages.Traditionaltesting methodologies in powered states present risks of system failures,complicating the evaluation of equipmentresilience under such conditions.Notably,there is a lack of established testing methods or platforms for assessing theeffects of high-altitude electromagnetic pulse(HEMP)on power equipment,both domestically and internationally.[Purpose]This study aims to explore the physical interactions between power systems and HEMP current injectiontest systems,ultimately developing a novel testing method to evaluate the impact of HEMP on power equipment safelyand effectively.[Methods]We propose a pulse disturbance loading method predicated on an equivalent"zeropotential,"which addresses significant limitations related to insulation withstand voltage and power capacity inexisting pulse sources that struggle with power frequency voltages.The method allows for phase-controllable loadingof nanosecond pulses onto millisecond-level power frequency signals.This approach enhances the coupling efficiencybetween the pulse source output and the power equipment,facilitating accurate measurements.[Results]Theimplementation of this novel loading method successfully captures strong electromagnetic pulse phenomena andestablishes threshold data for power equipment,simulating conditions closely aligned with real operational scenarios.This advancement significantly improves the reliability of test results in understanding equipment behavior underHEMP exposure.[Conclusions]The developed pulse disturbance loading method offers a promising solution forevaluating the effects of HEMP on power equipment,addressing previously encountered challenges in testing.Thisresearch contributes to the establishment of reliable testing protocols for assessing the resilience of power systemsagainst HEMP threats,ultimately enhancing the safety and robustness of critical infrastructure.
作者
秦锋
崔志同
毛从光
吴伟
陈伟
王旭桐
董亚运
Qin Feng;Cui Zhitong;Mao Congguang;Wu Wei;Chen Wei;Wang Xutong;Dong Yayun(National Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Xi’an 710024,China;Northwest Institute of Nuclear Technology,Xi’an 710024,China)
出处
《强激光与粒子束》
北大核心
2025年第10期174-181,共8页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(12305306)。
关键词
高空电磁脉冲
电力设备
工作状态
干扰加载
电磁环境效应
high-altitude electromagnetic pulse
power equipment
operational state
interference loading
electromagnetic environmental effect
