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Application of derived characteristics of magnetic cores to 3-staged MPC simulation

By: Choi, J.; Akiyama, H.; Katsuki, S.; Sakugawa, T.; Namihira, T.; Nagano, T.;

2007 / IEEE / 978-1-4244-0913-6

Description

This item was taken from the IEEE Conference ' Application of derived characteristics of magnetic cores to 3-staged MPC simulation ' A low inductance circuit has been fabricated in order to obtain shorter time to saturation during core unsaturation and current pulses with shorter widths during core saturation. B-H curves have been derived from the measured voltage and current waveforms. Characteristics of the magnetic core for pulsed-power generators have been investigated and the Electromagnetic Transient Program (EMTP) simulation has been carried out in order to determine the effects of leakage current on the energy efficiency of a 3-staged magnetic pulse compressor (MPC). As results, the unsaturated and saturated permeability were obtained from the derived B-H curves. And, it is found that �un increases with time to saturation and that �sat is strongly influenced by the stray inductances of the core. By applying custom characteristics to each stage in EMTP simulation, more practical energy transfer in MPC is obtained.