Efficiency Evaluation of Boost Converter and Three-phase Current Source Inverter with SiC Devices

This paper deals with efficiency evaluation of boost converter and three-phase current source inverter (CSI) with SiC Devices. This research target is an efficiency improvement for an induction motor drive with variable frequency system. A boost converter topology for applying the device to the current source is proposed, and the experimental evaluation of Si and SiC devices under static load is shown. Furthermore, the efficiency characteristic improvements are shown when SiC-MOSFET device is applied to a current source inverter under the static load.