文档介绍：华中科技大学
硕士学位论文
三相并联型有源滤波器的分析与设计
姓名:汪荔
申请学位级别:硕士
专业:电力电子与电力传动
指导教师:林桦
20050508
摘要
电力电子设备的大量使用使得谐波问题日益严重谐波成为影响电能质量的主要
因素有源电力滤波器(APF)以其独特的优点作为谐波治理的有效手段并成为科技人
员研究的热点传统的补偿对策是在负荷端分别对谐波无功进行补偿然而负荷
的总体特性如果不是按统一的数学模型进行综合地治理就难免顾此失彼目前谐
波抑制和补偿无功的重要趋势是采用有源电力滤波器采用的对策是一种基于波形的
补偿原理即将谐波电流和无功电流作为一个畸变波形分量按照一定的控制策
略来控制补偿装置使其发出一个相反的电流进行补偿这样系统将不含有这些分
量从而达到理想的状态
本文从主电路拓扑结构补偿分量检测算法和控制策略三方面对并联APF进行了
综述并详细介绍了基于派克变换原理的补偿分量检测方法
本文在基于MATLAB的SIMULINK为三相并联型电力有源谐波补偿系统建立了一个
包括各个子系统在内的整体仿真模型该系统仿真模型结果准确验证了检测算法的
有效性能实时反映动态过程变化
本文介绍了一种用于并联型有源滤波器的DSP控制电路系统并对控制系统的软
硬件各部分的结构和功能作了一定的阐述
谐波提取过程中LPF的参数好坏会影响到APF能否正常使用本文提出用IIR低通
滤波器的原理来设计LPF的结构和制定参数仿真和实验结果证明了该方法的正确性

关键词电力系统谐波补偿有源电力滤波低通滤波仿真
I
Abstract
The wide use of power electronic equipment makes harmonic problem deteriorated
increasingly. Harmonic es the primary factor influencing power quality. As an
effective means of harmonic restraint, active power filtering APF technique es
the research focus of scientific and technological personnel. The ordinary countermeasure
is pensate the respective load attribute on the spot of the loads, but it is hard to avoid
attending one thing and losing sight of another, when pensation is not made by
unitizing math mode. Now the use of active power filter is an important trend for harmonic
restraint and reactive pensation. The countermeasure we adopt is to regard
harmonic, reactive power and negative power as a kind of distorted wave, so we can
compensate together. Our work is adopting some algorithm to integrate the distorted wave
in the load current and controlling pensation equipment according to some control
technique, so that pensation equipment can produce the distorted wave and achieve
pensation purpose.
The paper summarizes APF respectively from topological configuration of main
circuit, detection arithmetic ponent and control strategy. It introduces
the detecting method ponent based on Park transformation theory in
detail.
The paper buil