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Two designs for DC–DC stage of electric vehicle charging stations
Electrical Engineering ( IF 1.8 ) Pub Date : 2020-06-19 , DOI: 10.1007/s00202-020-01017-3
Mahdi Bayati , Mehrdad Abedi , Gevork B. Gharehpetian , Maryam Farahmandrad

Pulse-voltage and pulse-current methods are widely used in advanced battery charging systems, because they enhance the overall charging process and prolong the battery lifetime. This paper proposes two battery charging systems for an electric vehicle charging station based on these methods. The first design is a developed version of a studied non-dissipative pulse-current DC–DC stage in which the negative pulse current is generated by a current recirculating block. It employs a precisely designed control system to charge and discharge electric vehicles in a wide range of voltage level. The second design is a pulse-voltage DC–DC stage suggested for high-power applications for the first time based on power electronics circuits. It also attenuates the sudden battery power changes caused by pulse-voltage method. The two designs have been accurately formulated. The practical results with the frequency responses confirm that the two designs work well and have less output power changes compared to the recent relevant works.

中文翻译:

电动汽车充电站DC-DC级的两种设计

脉冲电压和脉冲电流方法广泛用于先进的电池充电系统,因为它们增强了整体充电过程并延长了电池寿命。本文基于这些方法为电动汽车充电站提出了两种电池充电系统。第一种设计是经过研究的非耗散脉冲电流 DC-DC 级的开发版本,其中负脉冲电流由电流再循环块产生。它采用精确设计的控制系统,可以在很宽的电压范围内对电动汽车进行充电和放电。第二种设计是基于电力电子电路首次建议用于大功率应用的脉冲电压 DC-DC 级。它还可以减弱由脉冲电压方法引起的电池电量突然变化。这两种设计都经过精确制定。频率响应的实际结果证实,与最近的相关工作相比,这两种设计工作良好,输出功率变化较小。
更新日期:2020-06-19
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