Compact modular power supplies for superconducting inductive storage and for capacitor charging

The power supply systems for future electric weapons in mobile applications require energy storage devices that feature high power densities, These ca n either be superconducting inductive energy storage systems or high-voltag e capacitors, In future mobile applications these pulse storage devices wil l most likely be energized from an intermediate storage buffer, like the Ma gneto-dynamic Storage (h;IDS), a flywheel type storage device, In order to match impedances during the charging process, electronic power supply units are required as interfaces. This paper presents an 80 kVA/2000 A power supply needed to charge a superc onducting coil as well as a 200 kVA power supply for charging a 200 kJ/24 k V capacitor. Both power supply systems are designed to meet the requirements of future v ehicle applications, as far as volume, mass and shock tolerances are concer ned. The switches are liquid-cooled high-speed IGBT's. A resonant topology is used iio minimize the switching losses of the IGBT's, A useful feature i s the modular architecture with the possibility to operate several of the p ower supply units in parallel, synchronized by a master unit.