电动汽车充电对电网电能质量影响综述

Review of the Influence of Electric Vehicle Charging on Power Quality of Power Grid

近些年,电动汽车受到越来越多人的关注,世界各国都在积极推动电动汽车行业发展,我国也进入了电动汽车发展的高速期,然而,大量电动汽车充电桩的接入将会对现有的电网产生不可避免的影响。本文首先介绍了电动汽车充电的基本特性,然后从电能质量角度对规模化电动车接入对配电网的影响进行了详细的研究与分析,包括三相不平衡、电压偏差以及谐波影响,重点介绍了谐波的产生及谐波特性,并介绍了治理谐波污染的多种方案。

In recent years,electric vehicles have attracted more and more attention.All countries are actively promoting the development of electric vehicle industry.China has also entered the high-speed period of the development of electric vehicles.However,the access of a large number of electric vehicle charger will have an inevitable impact on the existing power grid.This paper first introduces the basic characteristics of electric vehicle charging,and then studies and analyses the influence of the access of the scale electric vehicle to the distribution network from the angle of power quality,including the three phase unbalance,voltage deviation and harmonic influence,mainly introduces the generation of harmonics and the harmonic characteristics,and introduces the harmonic control.Various schemes of pollution.