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A High-Power Capacitor Charger Using IGCTs in a Boost Converter Topology

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3 Author(s)
Brommer, V. ; French-German Res. Inst. of St.-Louis, St.-Louis, France ; Liebfried, O. ; Scharnholz, S.

A compact high-power capacitor charger with a boost converter topology is developed using high-power integrated gate-commutated thyristors as switches and a high-energy density coil as inductive buffer storage. This paper describes the design and the corresponding experimental investigations of the charger in combination with a powerful dc current source, a flywheel energy storage system. A 900-μF capacitor could be charged up to ~ 5 kV within 100 ms. The average charging power of the converter is . The results show that the described capacitor charger is a cost-effective and compact alternative to commercially available products.

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Plasma Science, IEEE Transactions on  (Volume:41 ,  Issue: 10 )