Current Transmission Efficiency for Conical Magnetically Insulated Transmission Line on a 1.0-MV Linear Transformer Driver System

Author

Fan Guo ; Wenkang Zou ; Laqun Liu ; Lin Chen ; Bing Wei ; Dagang Liu ; Meng Wang ; Weiping Xie

Author_Institution

Key Lab. of Pulsed Power, China Acad. of Eng. Phys., Mianyang, China

Volume

43

Issue

8

fYear

2015

fDate

Aug. 2015

Firstpage

2663

Lastpage

2669

Abstract

Current transmission efficiency in a conical transition magnetically insulated transmission line (MITL) has been studied experimentally on a 1.0-MV linear transformer driver system, which has 10 identical cavities connected in series with MITL. Transmission efficiencies of anode current as high as 98.4% and 93.1% could be achieved when the MITL operates at load-limited and self-limited flows, respectively. As for the cathode current, because of the sufficient length of conical transition MITL, cathode current is also able to sustain high transmission efficiency. But as long as the diode gap is too large, many of the electrons will be launched into the anode-cathode gap and the cathode current near the diode drastically decreases. Particle-in-cell simulations were conducted to validate the conclusions. The simulation results agree with experiments.

Keywords

driver circuits; power transformer insulation; power transmission lines; MITL; anode current; anode-cathode gap; cathode current; current transmission; diode gap; linear transformer driver system; magnetically insulated transmission line; particle-in-cell simulations; voltage 1.0 MV; Anodes; Cathodes; Cavity resonators; Impedance; Integrated circuit modeling; Load modeling; Probes; Current transmission efficiency; magnetically insulation; particle-in-cell (PIC) simulation; pulse power systems; pulse power systems.;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2015.2453337

Filename

7163637