摘要经济科技的飞速发展对能源的需求越来越多，不可再生能源的大量开采与消耗，使得传统化石能源日益短缺，并带来了严重的污染。太阳能因其具有储量大、无污染的优点，已受到越来越多人的关注，太阳能光伏发电技术因此不断得到发展。34029
本文首先从世界能源危机和环境变化的角度出发，分析了国内外太阳能光伏发电的现状和趋势，阐明了新能源太阳能的使用可以解决能源危机和环境污染等问题。接着，分析了光伏电池的工作原理及等效电路，得出光伏电池的理论数学模型，并运用Matlab软件的Simulink功能，建立光伏电池的工程仿真模型，得出光伏电池的输出特性曲线。然后，分析了Buck硬件电路实现MPPT的原理，结合光伏电池的工程仿真模型建立了光伏电池的MPPT仿真模型。在分析了常用最大功率点跟踪方法之后，针对电导增量法进行了改进，并将S-function算法应用于光伏电池的MPPT仿真模型。最后进行实验模拟，使用太阳能光伏系统的完成了实验。
毕业论文关键词：光伏发电；最大功率点跟踪；S-function；建模与仿真
毕业设计说明书外文摘要
Title Design of a photovoltaic solar power generation experiment system
Abstract
• The rapid development of economic and science & technology brings more and more demand for energy. Exploitation and consumption of much non-renewable energy resource make the traditional fossil energy resource shortage, and bring serious pollution. More and more people pay close attention to the solar energy because of its advantages of large reserves and pollution-free. Solar photovoltaic technology has achieved continuous growth.
First, from the point of view about the world's energy crisis and environmental pollution, this thesis analyzes the trends of the solar photovoltaic power generation, and shows that the solar photovoltaic power is a new energy to solve the energy crisis and environmental pollution. Then, this thesis analyzes the working principle of the photovoltaic cells and the equivalent circuits, and transforms the theoretical mathematical model of the photovoltaic cells into engineering mathematical model. In the following, this thesis constructs a photovoltaic cell engineering simulation model, and uses the software of Matlab to do the simulation for the output characteristic curves of photovoltaic cells. By analyzing the Buck hardware circuit and finding out the realization theory of MPPT, this thesis proposes the MPPT simulation model according to the engineering simulation model of the photovoltaic cells. After analyzing the advantage and disadvantage of MPPT , we conclude the better method to adjust the algorithm. Finally, we use the solar photovoltaic experiment system to finish the simulation experiments.
Keywords Power Generation；MPPT；S-function；Modeling and Simulation
目 次
1 引言1
1.1 全球能源危机及环境问题1
1.2 光伏发电的现状1
1.3 本文主要研究内容与章节安排2
2 太阳能光伏发电系统 3
2.1 独立光伏发电系统 3
2.2 光伏电池工作原理 3
2.3 光伏电池工作特性 4
2.4 光伏电池的数学模型5
2.5 光伏电池的仿真6
2.5.1 仿真平台6
2.5.2 模型推导7
2.5.3 仿真建模8
2.5.4 仿真结果分析12
2.6 本章小结15
3 Buck变换器 16
3.1 Buck降压电路 16
3.2 建模仿真16
3.2.1 设计参数16
3.2.2 建立仿真模型17
3.2.3 仿真结果与分析17
3.3 本章小结18
4 最大功率点跟踪技术19
4.1 最大功率点跟踪的原理19
4.2 实现最大功率点跟踪的方法19 Matlab光伏太阳能发电实验系统的设计:http://www.youerw.com/zidonghua/lunwen_31381.html