Compact pulsed power source based on explosively driven magnetic flux compression generator
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Abstract: This paper introduces a single-shot compact pulsed power source (PPS) based on an explosively driven flux compression generator (FCG) for some off-grid applications. The PPS was designed to rapidly charge a capacitive load of 65 pF to hundreds of kilo volts. Considering the impedance mismatch between the FCG and the load, a power conditioning module mainly consisting of an intermediate capacitor, an electro-explosive opening switch (EEOS) and an air-cored transformer was employed. This paper presents the design and experimental results in detail. Besides, it analyzes the experimental results and discusses the possible improvements in future. It is indicated that the capacitive load was successfully charged to -352 kV with a rising time of about 10 ns.
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Table 1. Representations of the symbols in Fig. 1
symbol representation symbol representation UDC DC power source S1 crowbar switch of the power conditioning module C0 capacitance of the initial energy storage capacitor bank Rf resistance of the EEOS Lc0 connecting inductance between C0 and FCG Lp inductance of primary of the transformer Rc0 connecting resistance between C0 and FCG Rp resistance of primary of the transformer S0 discharging switch of C0 Ls inductance of secondary of the transformer Sg1 crowbar switch of the 1st stage of FCG Rs resistance of secondary of the transformer Lg1 inductance of the 1st stage of FCG Cm capacitance of intermediate capacitor Rg1 resistance of the 1st stage of FCG S2 transfer switch of Cm Lg2 inductance of the 2nd stage of FCG Lc2 connecting inductance between Cm and the load Rg2 resistance of the 2nd stage of FCG CL capacitance of the load Sg2 crowbar switch of the 2nd stage of FCG I charging current of the load Lc1 connecting inductance between FCG and the power conditioning module 
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