A High Power 200kW Medium Frequency Transformer With Improved Thermal Management
2023 IEEE Energy Conversion Congress and Exposition (ECCE)(2023)
摘要
High insulation voltage and thermal management are the two major challenges in designing a high-power medium frequency transformer (MFT) for medium voltage power electronics applications. This paper proposes a novel insulation and cooling structure with potted windings and aluminum nitride (AlN) ceramic cooling plates in a 200 kW MFT with ferrite (3C94) magnetic cores and split winding structure. The MFT achieves a power density of 18.15 kW/L and a partial discharge inception voltage (PDIV) higher than 17 kV. The estimated efficiency is higher than 99.715% with superior thermal performance predicted at 200 kW.
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关键词
MFT,power electronics building block,medium voltage,partial discharge
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