在線閱讀 --自然科學版 2021年3期《快前沿感性耦合脈沖電流注入系統》
快前沿感性耦合脈沖電流注入系統--[在線閱讀]
劉克順, 張希軍, 周星, 王妍
陸軍工程大學 石家莊校區 電磁環境效應重點實驗室, 河北 石家莊 050003
起止頁碼: 244--250頁
DOI: 10.13763/j.cnki.jhebnu.nse.202102008
摘要
長距離線纜暴露在強電磁脈沖環境中可能發生能量耦合,對于不能有電接觸或者整個線束無法斷開的狀況,難以利用電磁脈沖模擬器對其進行輻照試驗或直接注入試驗,針對這一問題,研究了一種快前沿感性耦合脈沖電流注入系統,基于Marx發生器原理,研制了350 kV,5 kA脈沖電流注入源,通過優化Marx回路結構、設計銳化裝置,使脈沖前沿時間縮短至20 ns以內,能夠滿足GJB 8848-2016對注入脈沖電流波形的要求,通過研究大脈沖電流感性耦合技術,設計了感性耦合裝置,通過合理選擇磁芯的材料和幾何尺寸,進一步提高了感性耦合效率,為實現不需要改變線纜連接狀態的在線注入提供了技術支撐.

Study on Pulse Current Injection System with Fast Rise Time and Inductive Coupling
LIU Keshun, ZHANG Xijun, ZHOU Xing, WANG Yan
National Key Laboratory on Electromagnetic Environment Effects, Shijiazhuang Campus, Army Engineering University, Hebei Shijiazhuang 050003, China
Abstract:
In the experimental evaluation of long cables exposed to the strong electromagnetic pulse environment,when there is no electrical contact or the wire cannot be disconnected,it is difficult to use an electromagnetic pulse simulator to perform irradiation tests or direct injection tests.This paper studies a pulse current injection system with fast rise time and inductive coupling.Based on the Marx Generator principle,a 350kV,5kA pulse current injection source was developed.By optimizing the structure of Marx loop and designing sharpening device,the rise time was shortened to less than 20ns,which can meet the requirements of GJB8848-2016 for the injected pulse current waveform.The inductive coupling technology of large pulse current is studied,and the inductive coupling device is developed.The material and geometry size of the magnetic core are selected reasonably to improve the efficiency of inductive coupling.The study results in this paper can provide some technical support for on-line injection without changing the cable connection state.

收稿日期: 2020-10-28
基金項目: 國家自然科學基金(51707203)

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