能量可回馈的电动汽车充电桩设计

Abstract

随着电动汽车的不断发展，对充电桩的要求也越来越高。传统的充电桩关注的重点是充电速度的快慢、多功能化、智能化。本文给出一种大功率能量可回馈的电动汽车充电桩的设计方案；给出了该系统的结构图及控制原理。该电动汽车充电桩可实现对电动汽车的快速充电，同时又能将电动汽车的蓄电池作为储能元件，把电能回馈到电网，实现能量的双向流动。系统的功率因数可接近1，有明显的节能效果。 With the continuous development of electric vehicles, the charging pile is also getting higher and higher. The focus of the traditional charging pile is the speed of the charging speed, multi-func- tionalization and intellectualization. In this paper, a design scheme of charging pile for electric vehicle with high power and energy is given. The structure diagram and control principle of the system are given. The electric vehicle charging pile can realize the fast charging of electric vehicles, and the battery of the electric vehicle can be used as the energy storage element, and the electric energy can be fed back to the power grid to realize the bidirectional flow of the energy. Power factor of the system can be close to 1, and there is a significant effect of energy saving.