摘要
为了探究电动汽车直流充电桩接入对电网谐波的影响,首先阐述电动汽车直流充电桩的工作原理,给出电动汽车充电标准。分析发现直流充电桩系统、充电桩类型、充电桩数量、充电桩节点电压、节点电压和充电桩数量的共同作用等,都会对电网谐波产生影响,应以直流充电桩电动汽车与谐波之间的实测数据为基准,分析变电站设备、电容参数估值等方面的误差,对充电桩谐波进行治理。
In order to explore the influence of electric vehicle DC charging pile access on the grid harmonic,firstly,the working principle of DC charging stake for EV is described,and the charging standard for EV is given.It is found that the DC charging post system,the type of charging post,the number of charging posts,the node voltage of charging post,the node voltage and the number of charging posts all influence the harmonics of power network.It is necessary to use the measured data between the DC charging pile electric vehicle and the harmonics as a benchmark to analyze the errors in the substation equipment and capacitance parameter estimation,and control the charging pile harmonics.
作者
万井培
WAN Jingpei(Changfeng County Power Supply Company,State Grid Anhui Electric Power Co.,Ltd.,Hefei 231100,China)
出处
《电工技术》
2022年第17期9-11,共3页
Electric Engineering
关键词
电网谐波
直流充电桩
电动汽车
原理
影响
power grid harmonics
DC charging pile
electric vehicles
principle
impact
