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This paper presents the design and optimization of an isolated DC-DC converter that could be potentially selected for advanced multilevel topologies for offshore wind turbine applications. The superior properties of Silicon Carbide material in terms of switching speed, voltage withstand and efficiency provides the possibility to develop a highly optimized DC-DC converter.
This paper analyzes the design and construction of a SiC-based Dual Active Bridge (DAB) converter for its use in a three-stage Power Electronic Transformer (PET) based on a Modular Multilevel Converter (MMC). The galvanic isolation between primary and secondary of the PET provided by the DAB High Frequency Transformer (HFT) is 24 kV. Challenges for the HFT design are discussed. A 5 kW DAB prototype...
This paper provides conclusions on design and laboratory tests of a hybrid rectifier prototype which employs the newest generation of SiC transistors and diodes. For the presented hardware prototype the AC-DC efficiency is about 98%. Based on simulation analysis and the practical realization pros and cons of this topology were identified. It should be noted that hybrid rectifiers importance is growing...
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