题目：光伏发电系统建模及其仿真光伏发电系统建模及其仿真摘要伴随着能源危机和环境问题的不断加剧，清洁能源的发展进程被大大的推进了。太阳能作为一种新能源以其没有污染，安全又可靠，能量随处可以得到等优点越来越受到人们的青睐。无论从近期还是远期，无论从能源环境的角度还是从边远地区和特殊应用领域需求的角度考虑，太阳能发电都极具有吸引力。那么对光伏发电系统的研究则就变得既有价值又有意义。通过对光伏发电系统的理论研究学习，建立了完整的光伏发电系统体系，本文深入的研究了光伏电池在不同光照强度、不同温度下的电压、功率输出特性。本文的研究重点是光伏发电系统的控制技术，以及在MATLAB/SIMULINK仿真环境下的仿真结果。讨论了多种最大功率点跟踪方法；且分别讨论学习了在光伏并网和独立发电系统情况下的逆变器和MPPT的控制，并建立了仿真模型，提出了相应的控制策略。且在最后论述了孤岛效应的产生和反孤岛策略，用电压频率检测法完成了孤岛检测与保护。关键词：光伏电池，逆变器，最大功率点跟踪，孤岛效应，MATLAB仿真AbstractWiththegrowingenergycrisisandenvironmentalproblems,cleanenergyisgreatlypromotethedevelopmentprocess.Solarenergyasanewkindofenergyforitsnopollution,safeandreliable,widelyavailableenergyadvantages,suchasmoreandmoregetthefavorofpeople.Nomatterfromthenearfutureorlong-datedand,nomatterfromtheAngleofenergyandenvironment,orfromremoteareasandspecialapplicationsdemandpointofview,solarpowergenerationisextremelyattractive.Sothestudyofphotovoltaicpowergenerationsystemhasbecomebotharewardingandmeaningful.Throughthestudyoftheoreticalresearchofphotovoltaicpowergenerationsystem,establishedacompletesystemofphotovoltaicpowergenerationsystem,thispaperin-depthstudythephotovoltaiccellsunderdifferentilluminationintensity,temperature,voltage,poweroutputcharacteristics.Inthispaper,theresearchemphasisisthecontroltechnologyofphotovoltaicpowergenerationsystem,andthesimulationresultsinMATLAB/SIMULINKenvironment.Discussedavarietyofmaximumpowerpointtrackingmethods;And,respectively,todiscussthestudyundertheconditionofindependentpowergenerationandphotovoltaic(pv)gridsystemoftheinverterwithMPPTcontrol,andestablishedthesimulationmodel,putforwardthecorrespondingcontrolstrategy.Andislandingisdiscussedattheendoftheproductionandthereverseislandstrategy,usingfrequencyvoltagetestscompletedislanddetectionandprotection.Keywords:photovoltaicbatteries,inverter,maximumpowerpointtracking,islanding,theMATLABsimulation目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc359483271"摘要PAGEREF_Toc359483271\hIHYPERLINK\l"_Toc359483272"AbstractPAGEREF_Toc35948327