Title :
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
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;
Conference_Titel :
Plasma Science (ICOPS), 2013 Abstracts IEEE International Conference on
Conference_Location :
San Francisco, CA
DOI :
10.1109/PLASMA.2013.6633262
