Compact megajoule-class pulsed power supply for generating long-pulsed magnetic fields
Kazuki Matsui, T. Kanda, Yoshihiko Ihara, Koichi Kindo, Yoshimitsu Kohama
Abstract
A pulsed power supply with a compact and low-cost electric-double-layer-capacitor (EDLC) is developed for generating pulsed magnetic fields with a long pulse duration of a few seconds. The system is demonstrated in three experimental setups using a 10.7 F- or 50 F-EDLC capacitor bank. By using the 10.7 F-EDLC capacitor bank with a 27 mm wide-bore magnet, the pulsed magnetic field with a peak field strength of 24.3 T and a pulse duration of ∼1 s is generated. The field profiles are reproduced in the theoretical calculations taking Joule heating into account. The calculations are also used to discuss possible variations of the field profile for future investigations.
Topics & Concepts
Pulsed powerCapacitorMaterials scienceJoule heatingMagnetic fieldPulse durationPulse (music)MagnetPower (physics)Nuclear magnetic resonanceElectrical engineeringOptoelectronicsPhysicsVoltageOpticsComposite materialQuantum mechanicsEngineeringLaserElectromagnetic Launch and Propulsion TechnologySuperconducting Materials and ApplicationsPlasma Diagnostics and Applications