Design of a full SiC three-phase power factor correction with an interleaved output buck converter

Abstract

Active rectification of the three-phase grid nowadays is a central task of power electronics. However, as the necessary DC bus voltages vary, DC-DC converters are needed. This study presents the design and development of a three-phase power factor correction with an interleaved buck converter in the output stage. The power stage switches are equipped with silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors. A modular setup of the half-bridge modules as well as low inductive design of these modules is put into focus.

Keywords

• switching convertors
• silicon compounds
• DC-DC power convertors
• rectification
• power factor correction
• power electronics
• MOSFET
• interleaved output buck converter
• active rectification
• three-phase grid
• power electronics
• necessary DC bus voltages
• DC–DC converters
• interleaved buck converter
• output stage
• power stage switches
• silicon carbide metal-oxide-semiconductor field-effect transistors
• low inductive design
• full silicon carbide three-phase power factor correction
• half-bridge modules
• SiC