基于二阶广义积分的单相有源电力滤波器  

Single⁃phase APF with second⁃order generalized integral

作　　者：李斌[1] 肖景瑞 吴贵民 LI Bin;XIAO Jingrui;WU Guimin(State Grid Corporation of China DC Construction Branch,Beijing 100000,China;State Grid Heilongjiang Province Songbiandian Engineering Co.,Ltd.,Harbin 150000,China)

机构地区：[1]国家电网公司直流建设分公司,北京100000 [2]国网黑龙江省送变电工程有限公司,黑龙江哈尔滨150000

出　　处：《电子设计工程》2021年第10期63-67,共5页Electronic Design Engineering

基　　金：辽宁省自然科学基金项目(2018A610106)。

摘　　要：为了有效抑制小型低功耗单相负载的谐波电流,设计了一种基于二阶广义积分控制方法的单相有源电力滤波器(APF)。该滤波器在无电压先验信息的情况下,使用二阶广义积分算法处理失真的负载电流,从而获得正确的参考栅极电流。因此,无需提供电压传感器,仅使用两个电流传感器来测量负载和转换器电流。此外,无需使用比例积分调节器,并且无需为确定栅极电流幅值而进行其他计算。仿真和实测结果表明,所提出的滤波器能够将小型非线性负载的栅极电流总谐波失真从24.85%降低到3.76%,满足了IEEE 519-1992标准。In order to effectively suppress harmonic current of small low power single⁃phase load,a single⁃phase Active Power Filter(APF)based on second-order generalized integral control method is proposed.The system uses the second⁃order generalized integration algorithm to process the distorted load current without voltage information,thus obtaining the correct reference gate current.Therefore,there is no need to provide a voltage sensor,and only two current sensors are used to measure the load and converter current.In addition,there is no need to use a proportional⁃integral regulator and no need to make other calculations to determine the magnitude of the gate current.Simulation and experimental results show that the proposed filter can reduce the grid current total harmonic distortion of small nonlinear loads from 24.85%to 3.76%,which meets IEEE 519-1992 standard.

关 键 词：有源电力滤波器 无电压传感器 二阶广义积分 谐波电流 非线性负载 

分 类 号：TN712[电子电信—电路与系统]