Power Electronics Equipment Applying SiC Devices

摘要

To achieve innovative compactness, light weight, and low loss in power electronic equipment, it is beneficial to use power semiconductors that use wide bandgap materials such as SiC and GaN. By installing hybrid modules using Si-IGBT and SiC-SBD semiconductors into general-purpose inverters, Fuji Electric can reduce inverter loss by 25%. In addition, by installing all-SiC modules in power conditioners for solar power generation, we demonstrated that it can increase main circuit efficiency to 99% while also reducing the overall equipment volume to 1/4 of conventional models, which is a substantial size reduction.