Development of compact seed source with high-precision discharge switch for magnetic flux compression generator

摘要

A high-precision compact seed source for magnetic flux compression generators used an explosive-driven flyer high-power discharge switch was developed in this paper. And the deformation of the flyer in the switch was analyzed by numerical simulation. The compact seed source was a system (Phi 132 x 200 mm(3) volume, weighing 12.5 kg, operating voltage 5 kV, storing energy not less than 750 J, battery powered with full charge time less than 30 s) capable of delivering over 600 J (not less than 5.4 KA) into the magnetic flux compression generator (FCG, 42 mu H, 78 m Omega) at static condition. On basis of the analysis of the system composition, working principle and the best output sequence model, the test of coupling performance with FCG at dynamic condition has been carried out. The results show that the compact seed source was capable of coupling over 550 J (not less than 5.2 kA) at dynamic condition with time sequence control error less than 5 mu s, effect energy density over 200 mJ/cm(3) and transfer efficiency over 75%.