Title :
Pulsed power generation using open and closed ferromagnetic circuits
Author :
Shkuratov, Sergey I. ; Kristiansen, Magne ; Dickens, James C. ; Hatfield, Lynn L. ; Martin, R.
Author_Institution :
Dept. of Electr. & Comput. Eng. & Phys., Texas Tech. Univ., Lubbock, TX, USA
fDate :
10/1/2000 12:00:00 AM
Abstract :
Results are presented of an experimental study of the generation of high-voltage and high-current pulses in generators designed as open and closed ferromagnetic circuits. Experiments were carried out using a light gas gun system. The magnetic projectiles were composed of ferromagnetic disks having 1.27- and 2.54-cm diameters. It has been shown that with velocities of the magnetic projectiles of 200-380 m/s, the peak voltage of the pulses produced by the generators reach several tens of kilovolts, peak current reaches kiloampere, and the energy delivered at the load is a few Joules. Generating modules connected in series will make it possible to produce a high-energy pulse with a peak voltage of a few hundred kilovolts. It has been shown that a closed ferromagnetic circuit generator is capable of generating not only single high-voltage pulses, but also repetitive oscillations. Data are given for the effects on the amplitude of high-voltage pulses caused by the length and velocity of the ferromagnetic projectiles and the design of the generating unit for both high-voltage and high-current modes of pulsed power generation
Keywords :
ferromagnetic materials; pulse generators; pulsed power supplies; 1.27 cm; 2.54 cm; 200 to 380 m/s; closed ferromagnetic circuits; ferromagnetic disks; high-current pulse generation; high-voltage pulse amplitude; high-voltage pulse generation; light gas gun system; magnetic projectiles; open ferromagnetic circuits; peak pulse voltage; pulsed power generation; repetitive oscillations; Coils; Energy conversion; Magnetic flux; Magnets; Power generation; Projectiles; Pulse circuits; Pulse generation; Valves; Voltage;
Journal_Title :
Plasma Science, IEEE Transactions on