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High-power galvanically isolated DC/DC converter topology for future automobiles

机译:适用于未来汽车的大功率电隔离DC / DC转换器拓扑

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This paper presents a 2 kW three-phase dual active bridge converter (DAB3) which converts power between 42 V and 300 V and is easily scalable up to 20 kW. The DAB3 has been selected for this application based on detailed simulations comparing different suitable topologies. The circuits investigated in this paper can operate in a soft-switching manner enabling a reduction in device switching losses and therewith an increase in switching frequency. Candidate topologies under investigation are the serial resonant converter (SR), the single-phase dual active bridge (DAB1) and the three phase dual active bridge (DAB3). Key-features are the galvanic isolation, reduced cooling costs, and the capability of transferring energy over a wide voltage range.
机译:本文提出了一种2 kW三相双有源桥式转换器(DAB3),该转换器可在42 V至300 V之间转换功率,并可轻松扩展至20 kW。基于比较不同合适拓扑的详细仿真,已为该应用选择了DAB3。本文研究的电路可以以软开关方式工作,从而减少了器件的开关损耗,从而提高了开关频率。正在研究的候选拓扑是串行谐振转换器(SR),单相双有源桥(DAB1)和三相双有源桥(DAB3)。关键特性是电流隔离,降低的冷却成本以及在较宽的电压范围内传输能量的能力。

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