摘要
有源电力滤波器是一种以并联混合电容注入补偿电流为原理的滤波器,将其所产生的补偿电流用于抵消电网的谐波,可使有源滤波器安装容量得以减少。为了使低通滤波器有较高精度的谐波电流检测效果,采用了基于最小变步长均方误差自适应算法的滤波器。在MatLab/Simulink平台下,运用SimPowerSystems中的模块模拟电容注入式并联混合型有源电力滤波器在配电网的工作情况。仿真结果表明该滤波器能有效地抑制配电网谐波电流。
Active power filter(APF)is a kind of filter based on the principle of parallel hybrid capacitor injection compensation current.By using the compensation current generated by APF to cancel the harmonics of power grid,the installed capacity of APF can be reduced.In order to make the low-pass filter have high accuracy of harmonic current detection,a filter based on the minimum variable step size mean square error adaptive algorithm is adopted.Based on MatLab/Simulink platform,this paper uses the modules of simpower systems to simulate the operation of shunt hybrid APF with capacitor injection in distribution network.Simulation results show that the filter can effectively suppress the harmonic current of distribution network.
作者
刘盛
石伟
常晨琛
LIU Sheng;SHI Wei;CHANG Chen-chen(Central and Southern China Municipal Engineering Design&Research Institute Co.,Ltd.,Wuhan 430010,China)
出处
《自动化与仪表》
2020年第6期84-87,108,共5页
Automation & Instrumentation
关键词
谐波检测
混合型有源电力滤波器
自适应算法
harmonic detection
hybrid active power filter(APF)
adaptive algorithm
