环保性能好且能源效率高的电动汽车是未来汽车行业的发展趋势,而电动汽车充电站带来的谐波问题将影响配电网电能质量。首先分析了充电机的谐波产生机理及谐波特性,考虑到无源滤波方案成本低廉、易于推广,针对某充电机的实测谐波电流数据,详细分析了三种滤波方案,并开展仿真分析,为解决电动汽车充电站谐波抑制问题提供参考。 Electric vehicles with good environmental performance and high energy efficiency are the future trends in the automotive industry. Harmonic problems caused by EV charging stations will affect the power quality of the distribution network. Firstly, the harmonic generation mechanism and harmonic characteristics of the charger are analyzed. Considering the low cost and easy popularization of the passive filter scheme, three filtering schemes are analyzed in detail for the measured harmonic current data of a charger, and the simulation analysis is carried out , To provide reference for solving the problem of harmonic suppression of electric vehicle charging station.