一种同轴型脉冲功率电缆的设计与试制

doi:10.3969/j.issn.1000-1093.2018.08.005

兵工学报 ›› 2018, Vol. 39 ›› Issue (8): 1491-1498.doi: 10.3969/j.issn.1000-1093.2018.08.005

一种同轴型脉冲功率电缆的设计与试制

李贞晓¹，金涌¹，杨栋²，弯港¹，栗保明¹

（1.南京理工大学瞬态物理国家重点实验室，江苏南京 210094； 2.中国兵器科学研究院，北京 100089）

收稿日期:2017-11-06 修回日期:2017-11-06 上线日期:2018-09-21
作者简介:李贞晓（1975—），男，博士研究生。E-mail：lizhxnjust@yeah.net
基金资助:
装备预先研究兵器工业联合基金项目（6141B010220）

Design and Trial-manufacture of a Coaxial Pulsed Power Cable

LI Zhen-xiao¹， JIN Yong¹， YANG Dong²， WAN Gang¹， LI Bao-ming¹

（1.National Key Laboratory of Transient Physics， Nanjing University of Science and Technology， Nanjing 210094， Jiangsu， China；2.Ordnance Science and Research Academy of China， Beijing 100089， China）

Received:2017-11-06 Revised:2017-11-06 Online:2018-09-21

摘要/Abstract

摘要： 为满足电热化学炮系统工程化研究需求，开展了一种同轴型脉冲功率电缆设计与试制。根据发射试验获得脉冲电流、内部过电压等数据以及商业大功率电缆使用的经验，分析确定了脉冲功率电缆设计指标；基于同轴型商业大功率电缆开展了脉冲功率电缆结构设计，增加了屏蔽加强层和半导电层。屏蔽加强层能抑制外导体芯线错位产生的强电动力，防止电缆变形和爆裂，提高机械强度，改善电磁屏蔽效果；半导电层有助于消除气隙，平衡内部电场。使用有限元分析ANSYS软件对脉冲功率电缆进行了电磁场和热分析，协助开展了电气强度、机械强度和温升特性等辅助设计。针对脉冲功率电缆推广使用中出现的芯线端部拉长、断股与撕裂等现象，为内导体设计了钢芯以提高其抗拉强度。耐压试验与脉冲放电测试的验证结果表明，脉冲功率电缆在25 kV/5min电压作用下无损坏，在幅值203 kA、半峰值时间大于2 ms脉冲电流作用下无形变，满足系统研制要求。

关键词: 脉冲功率电缆, 脉冲电源, 电热化学发射, 同轴结构

Abstract: According to the research requirement of engineering in an electrothermal-chemical gun, a pulsed power cable was designed and developed, which is suitable for coaxial breech transmission system. The index parameters of pulsed power cable are analyzed and determined based on the pulse current and internal overvoltage data obtained from launch tests and the experience of common commercial high power cables. The structure design of pulsed power cable is carried out. Compared with common commercial high power cable, the shielding enhancement and semi-conductive layers are added in pulsed power cable. The strengthening shielding layer is used to improve the mechanical strength, which can restrain the strong electrodynamic force produced by the core dislocation of outer conductor, thus preventing the deformation and burst of cable, and improving the electromagnetic shielding effect. The semi-conductive layer is used to eliminate the air gap and balance the electric field. The electromagnetic field and thermal analyses of pulsed power cables are carried out by using simulation software, which assists in aided design of electrical strength, mechanical strength and temperature rise characteristics. In view of the breaking and tearing of the inner core end of pulse power cable in other systems, a steel core was designed to improve the tensile strength of inner conductor. Withstand voltage test and pulse discharge test show that the performance of pulsed power cable meets the requirements of the development. It is not damaged under the action of 25 kV/5 min voltage, and is not deformed under the action of pulse current with amplitude of 203 kA and half peak time greater than 2 ms. Key

Key words: pulsedpowercable, pulsedpowersupply, electrothermal-chemicallaunch, coaxialstructure

中图分类号:

TJ99

李贞晓，金涌，杨栋，弯港，栗保明. 一种同轴型脉冲功率电缆的设计与试制[J]. 兵工学报, 2018, 39(8): 1491-1498.

LI Zhen-xiao， JIN Yong， YANG Dong， WAN Gang， LI Bao-ming. Design and Trial-manufacture of a Coaxial Pulsed Power Cable[J]. Acta Armamentarii, 2018, 39(8): 1491-1498.

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第39卷
第8期2018 年8月兵工学报ACTA
ARMAMENTARIIVol.39No.8Aug.2018

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[6]	李贞晓，张亚舟，高梁，金涌，栗保明. 电热化学发射中硅堆故障试验分析[J]. 兵工学报, 2015, 36(4): 577-581.
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一种同轴型脉冲功率电缆的设计与试制

Design and Trial-manufacture of a Coaxial Pulsed Power Cable

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