摘要
有源滤波器是配电网谐波治理的动态补偿装置,但分布式电源的接入造成配电网谐波变得复杂,单一的有源滤波器在补偿线路谐波方面难以达到效果。设计了一种多级有源滤波系统,将补偿源设置在各电源母线处,得到一组含多个补偿源的分布式电源接入的配电网模型,通过调节滞环宽度,稳定开关频率。采用改进后的滞环空间矢量控制对各有源滤波单元分别进行控制,并基于MATLAB/Simulink仿真平台,分别搭建了含单一滤波器和两级有源滤波系统的分布式电源接入的配电网仿真模型,仿真对比分析了谐波治理的效果,仿真结果验证了多级有源滤波系统对分布式电源接入的配电网谐波治理的有效性和可行性。
Active filter is a dynamic compensation device for harmonic control in the distribution network.However,the access of the distributed generation causes the complexity of the harmonics of the distribution network,and the single active filter can hardly compensate the line harmonics.In this paper,a multi-stage active filtering system is designed.The compensation source is set at each power bus,and a distribution network model with distributed power supply and multiple compensation sources is obtained,which stabilizes switching frequency through hysteresis space adjustment.The improved hysteresis space vector control is used to govern the active filtering units,and the distributed generation with a single filter and multi-stage active filter system is built based on MATLAB/Simulink simulation platform.The network simulation model compares and analyzes the effects of single filtering and multi-stage active filtering system on harmonics control in the distributed distribution network.The simulation results verify the effectiveness and feasibility of a multi-stage active filtering system in distribution network harmonic control with the access of distributed generation.
作者
吴昊
方旭光
贾立忠
蒋嵘
王敏
徐勇俊
柳延洪
WU Hao;FANG Xuguang;JIA Lizhong;JIANG Rong;WANG Min;XU Yongjun;LIU Yanhong(State Grid Jinhua Power Supply Company,Jinhua Zhejiang 321000,China)
出处
《浙江电力》
2020年第1期35-40,共6页
Zhejiang Electric Power
基金
国网浙江省电力有限公司金华供电公司科技项目（5211JH17000A）
关键词
分布式电源
多级有源滤波
配电网
谐波治理
distributed generation
multi-stage active filtering
distribution network
harmonics control
作者简介
吴昊(1984),男,工程师,主要研究方向为配网电压及无功控制技术。
