Today’s standard medium voltage converters are operated at low switching frequencies and contain bulky
line filters. One concept to change this is the Quasi-Two-Level operation of multilevel converters with
fast switching semiconductors to minimize passive components. This paper presents the hardware of a
full-scale medium voltage SiC-based flying capacitor converter for quasi-two-level operation with up to
10kV DC voltage and 150A line current. This hardware enables studies on the influence of components,
modulation principles and control algorithms on the needed filters and the operation of the converter.