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Pulsed power generation using open and closed ferromagnetic circuits

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5 Author(s)
Shkuratov, S.I. ; Dept. of Electr. & Comput. Eng. & Phys., Texas Tech. Univ., Lubbock, TX, USA ; Kristiansen, M. ; Dickens, J.C. ; Hatfield, L.L.
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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

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Plasma Science, IEEE Transactions on  (Volume:28 ,  Issue: 5 )