Switching Properties of Liquid Nitrogen Cooled IGBTs and 24 kA Demonstration of Current Multiplier by Inductive Storage

11th European Conference on Applied Superconductivity

Yamada, S.^1 ; Nakayama, H.^2 ; Aso, Y.^2

National Institute for Fusion Science, Gifu

509-5292, Japan^1

Japan Steel Works, Ltd., Hiroshima

736-8602, Japan^2

关键词: 3-pulse;    Copper coils;    Current multipliers;    Current pulse;    Inductive storage;    Output current;    Switching performance;    Switching properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/3/032059/pdf
DOI  :  10.1088/1742-6596/507/3/032059

来源: IOP

【 摘 要 】

We had been developing a current multiplier by inductive storage (CMIS). The CMIS consists of 24 storage copper coils, which soaked into the liquid nitrogen, demonstrates a 24 kA of output current and the continuous current pulses of 3 pulses per second. Switching performance of the IGBTs and diode were tested in the liquid nitrogen bath. These experimental data were used to design the mega-ampere class CMIS. The system consists of the superconductive magnet section with a temperature of 20 K and the IGBT control switch section with a temperature of 77 K.