电动汽车充换电站系统优化设计

Optimum Design of Electric V ehicle Charging and ReplacingPower Station System

本文针对目前国内电动汽车充换电站建设设备优化选择方面存在的不足,结合传统充换电设备配置,从换电设备、充电设备的特点以及充电站的调试管理出发,深入浅出地进行探讨。分析、比较了目前几种换电模式的特点,为换电系统的优化设计提供了参考依据。在充电设备方面,提出了直流功率总线式充电系统(DPbus)的概念和设想。该系统可以优化充电系统的配置,降低功率损耗,实现电动汽车和电网之间的能量双向流动,为新能源的接入提供方便的接口,也为电动汽车产业和智能电网有机结合提供一个很好的解决方案。

For the current defect of optimum selection of electric vehicle charging station equipments,combining the traditional charging equipments configuration,discussion is started from the characteristic of charging equipments,battery replacing equipments and commissioning management in this article.The reference of charging station optimum design is provided though the comparison and analysis of different battery replacing modes.In the charging equipments aspect,a new concept named DC power bus charging system(DPbus) is provided.This system will optimize the configuration of charging system,lower down the power loss,realize two way flow of energy between the electric vehicle and grid,provide easy interface of new energy and give a better solution of the combination of electric vehicle industry and smart grid.