A novel 50 kW fast charger was proposed for electric vehicles. The proposed fast charger is divided into two main sections an AC-DC converter performing a PFC function and a DC-DC converter performing a charging funct...A novel 50 kW fast charger was proposed for electric vehicles. The proposed fast charger is divided into two main sections an AC-DC converter performing a PFC function and a DC-DC converter performing a charging function. A transformer including leakage inductances was used in the AC-DC converter in order to obtain isolation and inductance. A series-connection topology was used in the DC-DC converter between the DC-bus and outlet. This topology enables high power conversion efficiency up to 95% for the DC-DC converter. In order to reduce the impact of the 50 kW charging on the AC grid, the proposed fast charger system includes a buffering battery unit between the two main power conversion units. This leads to reductions in the power installation costs of power companies and to improvements in the power quality were verified through simulations and experimental results. on the AC grid. The performances of the proposed fast charger system展开更多
司南永指南,尘沙扑面知所趋;纸香传万国,文明之风吹新花;Sinan,the ancient compass,pointed to the south forever,so one was guided when sand against face makes the view blur;Paper spreads flowery fragrance far and wide,boom...司南永指南,尘沙扑面知所趋;纸香传万国,文明之风吹新花;Sinan,the ancient compass,pointed to the south forever,so one was guided when sand against face makes the view blur;Paper spreads flowery fragrance far and wide,booming civilization all over the world.活字印刷功千倍,大巧原本是布衣^（[1]）;火药虽烈不为暴,只向天边生彩霞。Movable-type printing contributed thousandfold,yet the inventor turned out to be a common person^（[1]）.Gunpowder was strong but not violent,invented for lights glowing on the horizon.展开更多
基金Project supported by Changwon National University in 2011-2012
文摘A novel 50 kW fast charger was proposed for electric vehicles. The proposed fast charger is divided into two main sections an AC-DC converter performing a PFC function and a DC-DC converter performing a charging function. A transformer including leakage inductances was used in the AC-DC converter in order to obtain isolation and inductance. A series-connection topology was used in the DC-DC converter between the DC-bus and outlet. This topology enables high power conversion efficiency up to 95% for the DC-DC converter. In order to reduce the impact of the 50 kW charging on the AC grid, the proposed fast charger system includes a buffering battery unit between the two main power conversion units. This leads to reductions in the power installation costs of power companies and to improvements in the power quality were verified through simulations and experimental results. on the AC grid. The performances of the proposed fast charger system
文摘司南永指南,尘沙扑面知所趋;纸香传万国,文明之风吹新花;Sinan,the ancient compass,pointed to the south forever,so one was guided when sand against face makes the view blur;Paper spreads flowery fragrance far and wide,booming civilization all over the world.活字印刷功千倍,大巧原本是布衣^（[1]）;火药虽烈不为暴,只向天边生彩霞。Movable-type printing contributed thousandfold,yet the inventor turned out to be a common person^（[1]）.Gunpowder was strong but not violent,invented for lights glowing on the horizon.
