电动汽车锂离子动力电池充放电装置研究

Study on Charging & Discharging Devices for Li-ion Battery in Electrical Vehicles

阐述了充放电装置的构成,基本功能及方案设计。介绍了为大功率锂离子动力电池充放电系统设计的双向AC/DC变换器和双向DC/DC变换器的结构,可以实现与电网间的信息交互和受控状态下能量双向流动。介绍了AC/DC和DC/DC模块设计及控制保护系统的设计。

The components,basic function and design of the charging discharging devices were presented in this paper.The structures of bi-directional AC/DC converter and bi-directional DC/DC converter of the charging discharging system for high-power Li-ion batteries were introduced.The system can achieve the information exchange in the grids and bi-directional power exchange in a controlled state.The module design of AD/DC and DC/DC and the control protection system were also introduced.