Title :
Efficiency improvement of AC/DC converter using SiC-based power electronics device
Author :
Matsukawa, Tatsuya ; Shimada, Ryuichi
Author_Institution :
Center for Integrated Res. in Sci. & Eng., Nagoya Univ., Japan
Abstract :
The application of SiC-based power electronics device to large capacity AC/DC converter is studied and its advantages are estimated quantitatively on operational loss of AC/DC converter. As the electrical characteristics of SiC crystallized material is excellent, SiC-based power electronics device has some attractive features of switching element for converter. Concerning operational loss reduction of AC/DC converter, lower on-state resistance of SiC-based power electronics device is the important parameter to decrease conduction loss. In the case of AC/DC converter system of ITER class power supplies, the operational loss of converter using SiC-based power electronics device is compared with that of conventional thyristor AC/DC converter.
Keywords :
AC-DC power convertors; Tokamak devices; fusion reactor design; power semiconductor devices; power supplies to apparatus; switching convertors; AC/DC converter system; ITER class power supplies; SiC crystallized material; SiC-based power electronics device; conduction loss; conventional thyristor AC/DC converter; electrical characteristics; operational loss reduction; resistance; switching element; Conducting materials; Crystalline materials; Crystallization; DC-DC power converters; Electric resistance; Electric variables; Power electronics; Power supplies; Silicon carbide; Switching converters;
Conference_Titel :
Fusion Engineering, 2003. 20th IEEE/NPSS Symposium on
Print_ISBN :
0-7803-7908-X
DOI :
10.1109/FUSION.2003.1426663
