Electromagnetic Emissions by Three Different Concepts of Bidirectional Multi-Phase SiC DC-DC Boost Converters
Karl Oberdieck, Arne Hendrik Wienhausen, Alexander Sewergin, Alexander Stippich, Jochen Henn, Rik W. De Doncker; PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Pages 1731-1739
In this work, three different prototypes of non-isolated multi-phase bidirectional DC-DC converters based on SiC MOSFETs with a power rating of several kW, an input voltage of 400V and an output voltage of 800V are compared under equal load conditions regarding their electromagnetic emissions (EMEs). Each prototype has a different number of phases, switching frequency, cooling concept, switching cell and mechanical design. Several design parameters are investigated regarding their effect on the EME by a parameter study.