有源滤波器的设计毕业设计论文

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学号:08033160120毕业论文有源电力滤波器设计Activepowerfilterdesign学院:电信学院专业:电气自动化技术班级:电气专081学生:李昂指导教师(职称):罗如山老师完成时间2011年05月5日至2011年月日目录目录摘要.....................................................................................................................................1ABSTRACT............................................................................................................................2第一章谐波产生的机理及其治理..........................................................................31.1谐波产生的机理..................................................................................................31.2谐波的治理..........................................................................................................4第二章有源电力滤波器的谐波检测及控制策略...............................................................52.1有源电力滤波器的谐波检测.............................................................................52.1.1瞬时无功功率理论................................................................................52.1.2三相电路谐波和无功的检测..................................................................72.2有源电力滤波器的控制策略...........................................................................102.2.1有源电力滤波器补偿电流的控制........................................................102.2.2主电路直流侧电压的控制....................................................................12第三章并联型有源电力滤波器的硬件设计.....................................................................133.1系统结构...........................................................................................................133.2主电路设计.......................................................................................................143.2.1主电路参数设计....................................................................................143.2.2开关器件的选取....................................................................................153.3控制电路设计...................................................................................................163.3.1控制电路结构........................................................................................163.3.2DSP芯片简介.........................................................................................173.4检测与调理电路设计.......................................................................................193.4.1电流信号检测调理电路........................................................................193.4.2电压信号检测调理电路........................................................................203.4.3采样触发信号提取电路........................................................................20第四章并联型有源电力滤波器的系统仿真.....................................................................224.1并联型有源电力滤波器检测系统仿真...........................................................22(1)仿真模型的建立....................................................................................22(2)仿真结果................................................................................................22(3)结果分析................................................................................................234.2并联型有源电力滤波器控制系统仿真...........................................................24(1)仿真模型的建立与参数选取................................................................24(2)仿真结果................................................................................................24目录(3)系统谐波分析........................................................................................25结束语...................................................................................................................................26参考文献...............................................................................................................................27摘要1摘要随着电力电子技术的发展,非线性负载的使用越来越普遍,产生的谐波对电网的危害日益严重,若不加以控制,将会严重影响整个电网的安全运行,所以对电网谐波进行补偿越来越重要。有源电力滤波器是一种新型的谐波及无功电流动态补偿装置,与传统的无源LC电力滤波器相比,具有响应速度快、补偿效果好、动态补偿等优点。本文概述了谐波产生的机理及其治理,并讨论了有源电力滤波器的结构与工作原理。通过深入研究有源电力滤波器的谐波与无功电流检测方法,对基于三相电路瞬时无功功率理论的qp法和qpii法的原理进行了分析,由于qpii法的优势,选定其为谐波检测方法;文中还详细分析了有源电力滤波器的控制策略,确定采用滞环比较控制法来对补偿电流进行控制;论文还对DSP芯片TMS320F2812进行了初步的介绍,在此基础上,设计出了并联型有源电力滤波器。之后,用MATLAD7.0对其进行了仿真和分析。论文还对本次设计进行了综述,总结了有源电力滤波器的优点,并提出了设计中的不足之处。关键词:谐波电流瞬时无功功率理论控制策略DSP有源电力滤波器ABSTRACT2ABSTRACTWiththerapiddevelopmentofelectricpowerandelectronictechnology,non-linearloadhavebeenwidelyused,theharmonicmakesincreasingseriousimpactagainsttheelectricnetwork,ifunchecked,itwillseriouslyaffecttheentireelectricnetwork,therefore,theharmoniccompensationhasbecomemuchmoreimportant.APFisanewharmonicanddynamicreactivecompensationdevices,comparewiththetraditionalpassiveLCfilter,APFhastheadvantagesoffastresponse,goodcompensationanddynamiccompensation.Thisarticlesummarizestheharmonicmechanismandmanagement,anddiscussedthestructureandactivepowerfilterworks.Fromdepthdepth-studyofthedetectionofharmonicandreactivecurrentforAPF,weanalysisthep-qmethodandip-iqmethodbasedontheinstantaneousreactivepowertheory,becauseofthesuperiorityofip-iqmethod,weselecteditasharmonicdetection.wein-depthanalysisthecontrolstrategyforAPF,determinethehysteresiscontrolmethodusedtocontrolthecompensationcurrent.Inthepagerweintrod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