A High Power Density MW-level Medium Voltage Eight-level Flying Capacitor Converter
Authors:
- 20 October 2024
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 3457-3464
Abstract
This paper presents a megawatt (MW) medium voltage (MV) 8-level flying capacitor converter (FCC) using 10 kV SiC MOSFET power modules. The developed converter is targeted for medium voltage grid (e.g. 13.8 kV ac line voltage) applications. Innovative methods to improve power density of the MV FCC are proposed and implemented. The prototype achieves a volumetric density of 0.33 m3/MW. A phase-leg of the 8-level FCC is built, and testing results up to 20 kV dc voltage and 60 A peak output current are demonstrated.Keywords
Funding Information
- U.S. Department of Energy
- National Science Foundation
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