配电网谐波及电压暂降研究  

Research on Harmonics and Voltage Sags in Distribution Networks

作　　者：易佳佳 辛春文 周林 来书平 YI Jiajia;XIN Chunwen;ZHOU Lin;LAI Shuping(State Grid Henan Electric Power Company Nanyang Power Supply Company,Nanyang 473000,China)

机构地区：[1]国网河南省电力公司南阳供电公司,河南南阳473000

出　　处：《电工材料》2024年第6期59-61,共3页Electrical Engineering Materials

摘　　要：对配电网中的电压暂降和电压总谐波(THD)失真进行了研究,运用实验的电网由电源、线路和电源阻抗建模,该网络的电气负载是电子负载,该负载是整流桥,其输出端子连接到电容器组和线性电阻。通过改变配电网中的负载阻抗、电容器组和负载数量来分析配电网的电能质量。利用PSCAD及MATLAB软件对配电网中的电压暂降和THD进行了研究。This article studies voltage sags and total harmonic distortion(THD)in distribution networks.The experimental power grid was modeled by power sources,lines,and power impedance.The electrical load of the network is an electronic load,which is a rectifier bridge,and its output terminals are connected to capacitor banks and linear resistors.The power quality of the distribution network by changing the load impedance,capacitor banks,and number of loads in the distribution network were analyzed.The voltage sags and THD in distribution networks were studied using PSCAD and MATLAB software.

关 键 词：配电网 电压暂降 电压谐波 仿真研究 

分 类 号：TM714[电气工程—电力系统及自动化]