搜索
本科生毕业设计说明书（毕业论文）题目：基于DSP的光伏并网逆变器硬件电路的设计学生姓名：学号：专业：电气工程及其自动化班级：指导教师：毕业设计说明书（毕业论文）41基于DSP的光伏并网逆变器硬件电路的设计摘要由于近年来不可再生能源的不断消耗，能源危机日益凸显，各国都在加紧开发新能源。太阳能发电作为一种全新的电能生产方式，具有清洁无污染、来源永不衰竭且维护措施简单等特点，因而受到越来越广泛的关注。本文针对太阳能应用的一个重要研究领域——光伏发电系统，尤其是小功率光伏并网发电系统，设计实现了基于DSP控制的单相光伏并网逆变器的硬件电路。论文首先介绍了太阳能光伏并网的国内外发展现状，阐述了利用DSP控制光伏并网系统的基本原理。然后提出了以逆变器DC/AC变换技术为核心的单相光伏并网逆变器的硬件电路设计方案，并在Matlab软件上进行了仿真测试。最后对后续研究工作进行了展望，为进一步制作电路板及其调试提供了参考。关键词：光伏并网；逆变器；数字信号处理器；Matlab仿真毕业设计说明书（毕业论文）41PVGrid-ConnectedInverterHardwareCircuitDesignBasedonDSPAbstractInrecentyears,withthecontinuousconsumptionofnon-renewableenergy,theenergycrisishasbecomeincreasinglyprominent,countriesaresteppingupthepacetodevelopnewenergy.Solarpower,asanewenergyproductionmethods,ownsmanyfeatures,suchas,clean,non-polluting,neverfailureofsourceandsimplemaintenancemeasures,andthusdrawsmoreandmoreattention.Inthispaper,asforanimportantresearchfieldofsolarenergyapplications-photovoltaicsystems,especiallylow-powerphotovoltaicpowergenerationsystem,thehardwarecircuitoftheDSP-basedcontrolofsinglephasephotovoltaicgrid-connectedinverterisdesignedandimplemented.Thepaperfirstlydescribedthedevelopmentofsolarphotovoltaicgridintheworld,andexplainedthebasicprinciplesofDSPcontrolledphotovoltaicgridsystem.Thenobjectiveofthesingle-phasePVgridinverterwiththecoreofDC/ACconversiontechnologyinverterhardwarecircuitisdesignedanditssimulationtestsontheMatlabsoftwareisproceeded.Finally,theprospectoffollow-upstudyprovidesareferenceforthefurtherproductionofcircuitboardsandtheirdebugging.Keywords:grid-connectedphotovoltaic;inverter;DSP;Matlabsimulation毕业设计说明书（毕业论文）41目录摘要.........................................................................................................................................IAbstract......................................................................................................................................II第一章绪论............................................................................................................................11.1课题研究的背景、目的和意义..................................................................................11.2国内外研究的现状......................................................................................................11.2.1国内研究的现状................................................................................................21.2.2国外研究的现状................................................................................................21.3本课题研究的主要内容..............................................................................................3第二章太阳能光伏并网的研究..............................................................................................42.1光伏并网逆变器的拓扑结构设计..............................................................................42.1.1按变压器拓扑结构分类....................................................................................42.1.2按功率变换级数分类........................................................................................62.1.3按控制方式分类................................................................................................72.2光伏并网控制策略基本原理....................................................................................102.2.1光伏并网逆变器的控制方式..........................................................................102.2.2光伏并网逆变器的控制目标..........................................................................102.2.3输出电流控制方式..........................................................................................112.2.4最大功率点跟踪..............................................................................................122.3孤岛效应....................................................................................................................142.3.1孤岛效应的影响和危害..................................................................................142.3.2孤岛效应的检测方法......................................................................................15毕业设计说明书（毕业论文）41第三章基于DSP的并网逆变器硬件电路的设计...............................................................163.1并网逆变器总体结构................................................................................................163.2基于DSP的控制系统硬件设计...............................................................................163.2.1DSP概述...........................................................................................................173.2.2DSP系统硬件电路设计...................................................................................183.3采样和调理保护电路设计........................................................................................243.4主电路设计与关键参数选择....................................................................................283.4.1Boost电路设计与参数选择.............................................................................283.4.2逆变器电路设计与参数选择..........................................................................31第四章光伏并网逆变器仿真测试........................................................................................354.1Boost升压电路仿真测试.......................................................................