Pulsed-Current Distribution in Electromagnetic Rail Launchers

被引:4
|
作者
Bandini, Gabriele [1 ]
Marracci, Mirko [1 ]
Caposciutti, Gianluca [1 ]
Tellini, Bernardo [1 ]
机构
[1] Univ Pisa, Dept Energy Syst Terr & Construct Engn DESTeC, I-56122 Pisa, Italy
关键词
Rails; Current distribution; Inductance; Voltage measurement; Electromagnetics; Transmission line measurements; electromagnetic rail launcher; measurement; mutual partial inductance; INDUCTANCE GRADIENT; MAGNETIC-FIELD; CONTACT; ARMATURES;
D O I
10.1109/TIM.2020.3006610
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This article deals with the measurement of current distribution through the rail cross section of an electromagnetic rail launcher. A measurement approach based on a loop system magnetically coupled to the launcher that is placed along the rails is proposed. The estimation of the current distribution in the rail, following the basic rules of the partial-inductance method, is discussed in this article. To test the proposed method, an experimental analysis on an "ad-hoc"-developed multiconductor rail prototype supplied by a high-voltage capacitor bank is presented. The experimental results obtained by the proposed method were compared with the direct-current measurements achieved by a set of Rogowski coils showing good agreement for different current values.
引用
收藏
页码:9381 / 9388
页数:8
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