A SiC-based high-performance medium-voltage fast charger for plug-in electric vehicles
A SiC-based high-performance medium-voltage fast charger for plug-in electric vehicles
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一种基于SiC的插电式电动汽车高性能中压快速充电器
DOI：
10.1109/ecce.2016.7854777
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
S. Lukic
中科院分区：
文献类型：
--
作者：
Srdjan Srdic;Xinyu Liang;Chi Zhang;Wensong Yu;S. Lukic
介绍了一种用于插电式电动汽车的隔离式中压、高电能质量、高效率（96%以上）快速充电器。拟议的全模块化快速充电器使用现成的碳化硅（SiC）功率器件将整流的单相2.4 kV中压输入转换为可变直流输出。所采用的输入-串联-输出-并联单向拓扑结构使转换器在输入电压和输出功率方面都具有可扩展性。采用宽带隙（WBG）功率器件，与现有的快速充电器相比，体积减小了9倍，重量减轻了6倍，效率提高了1.5%以上。根据系统要求，选择了合适的变换器拓扑结构，并在研制的快速充电器样机上进行了仿真和实验验证。
This paper presents an isolated medium-voltage, high-power-quality and high efficiency (over 96%), fast charger for plug-in electric vehicles. The proposed fully modular fast charger uses off-the-shelf Silicon Carbide (SiC) power devices to convert the rectified single-phase 2.4 kV medium-voltage input to variable dc output. The adopted input-series-output-parallel unidirectional topology enables converter scalability in both the input voltage and the output power. Using wide bandgap (WBG) power devices enables 9 times reduction in volume and 6 times reduction in weight, compared to the state-of-the-art fast chargers, while exceeding the efficiency of the state-of-the-art fast chargers by more than 1.5% Based on the system requirements, the appropriate converter topology was selected, its operation was simulated and validated by experiments on the developed fast charger prototype.