并联型三相四线有源电力滤波器滞环控制电路设计.doc

并联型三相四线制有源电力滤波器滞环电路设计 摘要 本文首先简单介绍了电力系统谐波的基本概念、基本原理及其对整个电力系统的影响，然后介绍国内外有源电力滤波器的控制方法的发展趋势和应用情况，不同类型有源电力滤波器的基本原理、结构和控制方法，混合型并联有源电力滤波器的基本原理、结构，最后重点分析并联型三相四线制有源电力滤波器控制方法，绘制并联型三相四线制有源电力滤波器的原理图及其框图，绘制整个控制电路原理图及框图，并利用MATLAB仿真软件对有源电力滤波器进行仿真，得出了预期波形。 关键词：谐波；电力有源滤波器；控制电路；滞环电路  Shunt three-phase four-wire active power filter design of Hysteresis circuit Abstract The pollution of harmonics and reactive power in power grid becomesserious and endangers the power system and customers while power electronicdevices and other nonlinear loads are applied widely.The study on shunt activepower filter, which is a novel device compensating harmonics and reactive power simultaneously,is the focus in the field of power quality control.Inrecent years,the issues of harmonics and loads unbalance in three-phase four-wire power grid are more and more serious. In this paper, a brief account of the power system harmonics of the basic concepts, the basic principles and its impact on the entire power system.And then the paper gives an introduction about active power filter’s controlling method and Application, Different types of active power filter’s the basic principles, structure and control method,.Parallel hybrid active power filter’s basic principles, structure is also introducede ,at last ,the paper gives analysis of parallel three-phase four-wire active power filter control methods, draws parallel three-phase four-wire active power filter and its schematic diagram, maps the entire control circuit schematic diagram and block diagram,and uses MATLAB to simulate APF , reachs the desired waveform. Key words: Harmonics; Active filter of power; Control circurt  目 录 第1章 绪论 4 1.1 电力系统谐波 4 1.1 1电力系统谐波概述 4 1.1 2 谐波的基本概念 4 1.1 3 谐波的危害 4 1.2 有源电力滤波器及其控制方法的发展趋势与研究现状 6 1.2 1 有源电力滤波器的发展历程 6 1.2 2 有源电力滤波器的研究现状及发展趋势 6 1.2 3 有源电力滤波器的控制技术发展趋势 6 1.3 电力有源滤波器简介 7 1.3 1 传统的谐波抑制和无功补偿装置的缺陷 7 1.3 2 电力有源滤波器的优点 8 1.4 电力有源滤波器的分类 9 1.5 电力有源滤波器工作原理简介