太阳能光伏发电并网技术的研究

甘肃有色冶金职业技术学院2016届毕业设计毕业设计专业：光伏发电技术及应用班级学号：光伏1302班-1313207学生姓名：陈旭恩指导教师：侯文东助教二〇一六年三月甘肃有色冶金职业技术学院2016届毕业设计甘肃有色冶金职业技术学院毕业设计太阳能光伏发电并网技术的研究Researchonsolarphotovoltaicpowergenerationandnetworktechnology专业班级：光伏1302班学生姓名：陈旭恩指导教师：侯文东助教系别：冶金与材料工程系2016年03月摘要光伏发电作为最有发展前景的一种可再生绿色能源，已经成为当今能源发电领域的研究热点，介绍了中国光伏发电并网技术的研究现状、发展趋势及关键技术，重点对光伏发电的逆变器最大功率点跟踪技术、孤岛检测技术以及光伏电站并网控制技术进行了讨论，并且预测了光伏发电技术的发展趋势。首先介绍了太阳能光伏发电并网分类及特点等，分析了国内外光伏发电产业的现状。接着对光伏发电并网面临的困难及相关技术解决方案进行分析，同时对中国光伏发电产业存在的问题提出了相关的对策和建议，最后预测了太阳能光伏发电产业的未来前景。关键词：太阳能光伏发电系统；可再生能源；光电效应；MPPT最大功率点跟踪；并网光伏电站甘肃有色冶金职业技术学院2016届毕业设计abstractPhotovoltaicpowergenerationasthemostpromisingrenewablegreenenergy，Ithasbecomethehottopicinthefieldofenergygeneration，ItintroducesthestatusquoofChinesephotovoltaicpowergenerationandnetworktechnology、Islandingdetectiontechnologyandphotovoltaicpowerplantsandnetworkcontroltechnologyisdiscussed，Andforecaststhedevelopmenttrendofphotovoltaictechnology。Firstintroducedthesolarphotovoltaicpowergenerationandnetworkclassificationandcharacteristics，ItanalyzesthepresentsituationofthePVindustry。Nextphotovoltaicpowergenerationandnetworkfacingdifficultiesandrelatedtechnologysolutionsforanalysis，AtthesametimeChinesePVindustrytheproblemsputforwardrelevantcountermeasuresandsuggestions，Finallypredictedfutureprospectsofsolarphotovoltaicindustry。Keywords：PhotovoltaicPowerGeneratingSystem；RenewableEnergy；Photoelectriceffect；MaximumPowerPointTracking，MPPT；Grid-connectedPVpowerplant甘肃有色冶金职业技术学院2016届毕业设计目录一.光伏发电系统背景......................................................................................................................61.1介绍..........................................................................................................................................61.2人口与能源需求....................................................................................................................71.3能量单位.................................................................................................................................81.4当前世界能源使用模式......................................................................................................81.5净能、英热单位经济和可持续性试验...........................................................................91.6光伏实现的阳光向电力直接转换..................................................................................101.7太阳能的利弊.....................................................................................................................11二.国内外发展现状........................................................................................................................112.1中国光伏发电产业状况与技术前景.............................................................................122.1.1中国光伏发电的市场发展...................................................................................122.1.2我国光伏发电市场已涉及区域..........................................................................142.1.3中国光伏发电技术前景.......................................................................................152.2国外光伏发电发展现状及前景......................................................................................16三.太阳能光伏发电系统概要......................................................................................................203.1太阳能光伏发电系统的构成..........................................................................................203.2PV系统的种类....................................................................................................................21四.太阳能光伏电池及其特性......................................................................................................224.1太阳能电池的原理.............................................................................................................224.2太阳能电池的种类.............................................................................................................234.3太阳能电池伏安特性及影响因素..................................................................................25五.无电流传感器型MPPT控制策略...........................................................................................285.1MPPT原理.............................................................................................................................285.2系统组成与整体控制策略..............................................................................................285.2.1双级式光伏并网发电系统组成.........................................................................285.2.2无电流传感器的MPPT整体控制策略.............................................................29六结论.................................................................................................................................................31七参考文献........................................................................................................................................32八.致谢.................................................................................................................................................33甘肃有色冶金职业技术学院2016届毕业设计引言太阳能一般是指太阳光的辐射能量，在现代一般用作发电。自地球形成生物就主要以太阳提供的热和光生存，而自古人类也懂得以阳光晒干物件，并作为保存食物的方法，如制盐和晒咸鱼等。但在化石燃料减少下，才有意把太阳能进一步发展。太阳能的利用有光热转换和光电转