摘要社会和技术一直在不断地发展和进步，能源紧缺和环境污染问题随之而来，并且形势愈发严峻，人们迫切需要开发新能源来解决发展面临的困境，利用太阳能进行光伏发电的方式以其易获取、无污染的优势聚集了世界的目光，是目前研究的热点。论文以光伏发电系统为主要内容，从光伏电池原理入手，研究了一些目前常见的最大功率点控制技术并探讨了各自具备的优势和劣势，深入分析了光伏系统的结构和主要模块的控制方法，包括直流-直流和直流-交流两大变换电路部分，建立出单相光伏并网和三相光伏并网系统模型，并在matlab的simulink环境下构建出动态仿真模型进行仿真，证明了构建所得各种模型和采用的控制方法是正确可执行的。30310
关键词 光伏发电 MPPT控制 逆变器 两级式并网
毕业论文设计说明书外文摘要
Title Photovoltaic power generation system and the research of grid-tied control strategy
Abstract
The society and technology has been in constant developed and progressed, the problem of energy shortages and environmental pollution has emerged, the situation has become increasingly serious,the human being cry for developing new energy to solve the plight of development.Solar photovoltaic power generation has gathered the widespread attention of the world because of its advantages that it can be accessed easily and has no pollution,it’s becoming a hot spot of current research.This paper regarded the photovoltaic power generation system as the main content,studied the principle of photovoltaic power generation and some common maximum power tracking control methods and it’t advantages and disadvantages,analysed the structure and control methods of photovoltaic power generation system deeply,including DC-DC and DC-AC conversion circuit.After that,this paper established the model of single-phase photovoltaic grid system and three-phase photovoltaic grid system,and built the dynamic simulation model in the simulink of matlab for the simulation,the model has been verified to be reasonable and effective.
Keywords photovoltaic power generation;maximum power point tracking control ;inverter;two levels of grid
目 次
1 绪论 1
1.1 课题研究的背景及意义 1
1.2 光伏并网发电的发展现状 1
1.3 光伏并网发电技术的研究现状 3
1.4 相关文献的研究状况 5
1.5 论文的主要研究内容 6
2 光伏电池的模型建立以及仿真 7
2.1 光伏发电的工作原理 7
2.2 光伏电池的等效模型建立以及仿真 7
2.3 本章小结 12
3 光伏发电系统的MPPT控制方法的研究 13
3.1 MPPT（最大功率跟踪）原理 13
3.2 常用的MPPT控制算法及仿真 13
3.3 MPPT控制的建模与仿真 18
3.4 本章小结 26
4 光伏发电系统单相并网的设计与仿真 27
4.1 并网逆变器的选取 27
4.2 单相光伏发电并网结构 29
4.3 并网控制策略的选取和设计 29
4.4 单相并网仿真电路的搭建及仿真结果 31
4.5 本章小结 33 matlab光伏发电系统并网控制策略研究:http://www.751com.cn/zidonghua/lunwen_25969.html