光伏离网逆变器中逆变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，尤其是小功率光伏离网发电系统，设计实现了基于DSP控制的光伏离网逆变器逆变电路部分的硬件电路。论文首先介绍了太阳能光伏发电的国内外发展现状，阐述了利用DSP控制光伏离网系统的基本原理。然后提出了以逆变器DC/AC变换技术为核心的光伏离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。关键词：光伏离网；逆变器；DSP；Matlab仿真ThedesignofinvertercircuitinoffgridphotovoltaicinverterAbstractInrecentyears,withthecontinuousconsumptionofnon-renewableenergy,theenergycrisishasbecomeincreasinglyprominent,countriesaresteppingupthepacetodevelopnewenergy.Solarpower,asanewenergyproductionmethods,ownsmanyfeatures,suchas,clean,non-polluting,neverfailureofsourceandsimplemaintenancemeasures,andthusdrawsmoreandmoreattention.Inthispaper,asforanimportantresearchfieldofsolarenergyapplications-photovoltaicsystems,especiallylowpowerphotovoltaicoffgridpowergenerationsystem,designandachievethehardwarecircuitofinvertercircuitinphotovoltaicoffgridinverterbasedonDSPcontrol.Thepaperfirstlydescribedthedevelopmentofphotovoltaicpowergenerationintheworld,andexplainedthebasicprinciplesofDSPcontrolledphotovoltaicoffgridsystem.ThenobjectiveoftoffgridinverterwiththecoreofDC/ACconversiontechnologyinverterhardwarecircuitisdesignedanditssimulationtestsontheMatlabsoftwareisproceeded.Keywords:offgridphotovoltaic;inverter;DSP;Matlabsimulation目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc327091333"摘要PAGEREF_Toc327091333\hIHYPERLINK\l"_Toc327091334"ABSTRACTPAGEREF_Toc327091334\hIHYPERLINK\l"_Toc327091335"1绪论PAGEREF_Toc327091335\h1HYPERLINK\l"_Toc327091336"1.1本课题的意义PAGEREF_Toc327091336\h1HYPERLINK\l"_Toc327091337"1.2太阳能光伏发电的现状PAGEREF_Toc327091337\h1HYPERLINK\l"_Toc327091338"1.3太阳能光伏发电的概述PAGEREF_Toc327091338\h2HYPERLINK\l"_Toc327091339"1.4本课题的内容和设计要求HYPERLINK\l"_Toc327091340"2光伏发电系统HYPERLINK\l"_Toc327091341"2.1光伏发电系统的组成HYPERLINK\l"_Toc327091342"2.2光伏发电系统的分类HYPERLINK\l"_Toc327091343"3光伏电池HYPERLINK\l"_Toc327091344"3.1光伏电池的工作原理HYPER