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Performance of 2.4-MJ pulsed power system for electrothermal-chemical gun application

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9 Author(s)
Yun-Sik Jin ; Korea Electrotechnol. Res. Inst., Changwon, South Korea ; Hong-Sik Lee ; Jong-Soo Kim ; Rim, G.-H.
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In order to maximize electrothermal-chemical (ETC) gun performance, the power supply for the ETC gun driver needs to have a capability of producing a flexible current pulse. This current pulse forming can be realized by a combination of current pulses from multiple modularized capacitor banks. For this purpose, a 2.4-MJ pulse power system (PPS) has been developed. The 2.4-MJ PPS consists of eight modular 300-kJ capacitor banks (CBs). The 300-kJ CB modules are designed to operate independently and have a charging voltage of 22 kV and a current capability of 150 kA. Operation characteristics of 2.4-MJ PPS have been investigated. Various shapes of current pulse have been tried for a dummy resistive load and an ETC gun load. In this paper, we discuss some problems that take place during multiple modules operation and suggest solutions for these problems. We also show some experimental results when the 2.4-MJ PPS was applied to resistive dummy load and a 30-mm ETC gun load.

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Magnetics, IEEE Transactions on  (Volume:39 ,  Issue: 1 )