面对全球日趋严重的能源危机问题，可再生能源的开发和利用得到了人们的高度重视。其中辐射到地球太阳能资源是十分富饶的，绿色清洁的太阳能不会危害我们的生存环境，因而受到了人们的广泛利用。光伏发电作为可再生能源被广泛的应用，技术不断革新。为了提高光伏发电系统的光电转换效率，需要系统实时的进行最大功率点跟踪。

首先对光伏发电系统的运行进行了全面的理论分析，将研究对象进行理想化处理，通过对两个理想电源并联运行的深入思考，揭示了在并网模式下电能质量的影响因素，为控制策略的研究提供了方向。

随后，从用户对光伏发电系统的实际需求出发，设计了光伏供电系统的功能和工作模式，通过理论分析和仿真实验确定了比较恰当的主电路形式，并对电路中各模块进行了设计和参数选择。

在MATLAB/Simulink仿真环境下搭建了单相无变压器并网光伏供电系统仿真模型，采用最大功率点跟踪算法，对提出的控制方案进行了一系列仿真实验，从多角度验证了所提出控制方法的灵活性和可靠性。

关键词：光伏发电，并网，MATLAB仿真，最大功率点跟踪，抑制谐波

Abstract

In the face of the increasingly serious global energy crisis, the development and utilization of renewable energy has attracted great attention.Among them, radiation to the earth's solar energy resources is very rich, green and clean solar energy will not harm our living environment, so it has been widely used by people.Photovoltaic power generation as a renewable energy is widely used, technology innovation.In order to improve the photoelectric conversion efficiency of photovoltaic power generation system, the system needs to track the maximum power point in real time.

Firstly, a comprehensive theoretical analysis of grid-connected operation of photovoltaic power generation system is carried out, and the research object is idealized. Through in-depth thinking of the parallel operation of two ideal power supplies, the influencing factors of power quality in grid-connected mode are revealed, which provides a direction for the study of control strategy.

Then, based on the user's actual demand for photovoltaic power generation system, the function and working mode of single-phase photovoltaic power supply system is designed. Through theoretical analysis and simulation experiments, the proper main circuit form is determined, and the design and parameter selection of each module in the circuit are carried out.

In the MATLAB/Simulink simulation environment, a simulation model of the single-phase transformer-free grid-connected photovoltaic power supply system was built, and a series of simulation experiments were carried out to verify the flexibility and reliability of the proposed control method from multiple perspectives.

Keywords: Photovoltaic power generation, grid-connected, MATLAB simulation, maximum power point tracking, harmonic suppression

完整论文点击如下链接下载：

https://download.csdn.net/download/weixin_45905610/88575342

含光伏发电的变电站供电系统设计资源-CSDN文库

matlab建模仿真点击如下链接下载：

https://download.csdn.net/download/weixin_45905610/88575343

含光伏发电的变电站供电系统设计-matlab仿真资源-CSDN文库