PPPS-2013: Design of a compact and efficient 150kV modulator with very fast rise time for Plasma Channel Drilling

Author

Hobejogi, Tonis ; Biela, Juergen

Author_Institution

Lab. for High Power Electron. Syst., ETH Zurich, Zurich, Switzerland

fYear

2013

fDate

16-21 June 2013

Firstpage

1

Lastpage

1

Abstract

Plasma Channel Drilling, which utilizes high voltage pulses with very short rise times for disintegrating rocks, is an interesting concept to improve drilling efficiency. The most common way for generating the high voltage pulses are Marx generators based on spark gaps. However, the size and life time of such generators is one of the main disadvantage. Therefore, in this paper a very compact and durable modulator, using a 4.5kV semiconductor switch in combination with pulse compression, is presented.

Keywords

capacitors; drilling (geotechnical); inductance; inductors; modulators; numerical analysis; pulse compression; pulse generators; semiconductor switches; spark gaps; Marx generators; PPPS-2013; analytical models; circuit performance; compact modulator; connection cables; drilling efficiency; high voltage pulses; ignition voltage; inductors; leakage inductances; numerical circuit simulation; plasma channel drilling; pulse compression; pulse compression circuit; pulse generator circuit; rock disintegration; saturable transformers; semiconductor switch; series capacitor; spark gaps; stray capacitances; voltage 150 kV; Capacitors; Circuit faults; Generators; Modulation; Plasmas; Power transformer insulation; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science (ICOPS), 2013 Abstracts IEEE International Conference on

Conference_Location

San Francisco, CA

ISSN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2013.6633262

Filename

6633262