A compact SiC converter having power densities about 9 W/cm3 is designed and
fabricated. It is confirmed that the converter operates in a thermally permissive range. The power
loss of the module of the converter measured under motor operations is less than 50% of the
similar-rating Si module loss. The shrink of the effective volume of DC-link capacitor is necessary
to achieve the high power-density SiC converter, in addition to the decrease of the cooling system
volume due to the loss reduction caused by SiC devices.
A thermal analysis model for high power density beam stops