摘要
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。
由于国内人民生活水平的提高，科技不断地进步，控制不断地完善，导致不
可再生能源消耗严重，甚至殆尽，从而促使可再生能源成为行业的主导。光伏发
电成为现阶段一处亮丽的风景线，由于其拥有成熟的开发技术，成本相对较小，
几乎无污染的优势，使得在新能源发电行业具有很高的前景，成为世界各国关注
的焦点。同时，因为光照强度可变性、随机性以及不可控制性较强，光伏发电系
统的稳定性影响较大。光伏发电行业不断革新，发电的数量越来越大。因此新一
代的我们要认真去钻研光伏发电的影响。
现如今，全球都将遭受能源匮乏和大气污染严重得重大问题，在当前这种情
况下，单相光伏并网逆变器控制系统成为世界各国关注的焦点和研发的重点方向。
然而，单相光伏并网逆变器控制系统中的 LCL 型并网逆变器成为系统的重要角
色，对电流的控制成为当前设计人员研究的重点方向。
关键词：LCL 型滤波器，并网逆变器，电流控制，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.
Due to the improvement of people's living standard, the continuous progress of
science and technology, and the continuous improvement of control, the consumption
of non-renewable energy is serious or even exhausted, thus promoting the renewable
energy to become the leading industry.Photovoltaic power generation has become a
beautiful landscape at the present stage. Due to its advantages of mature development
technology, relatively small cost and almost no pollution, it has a high prospect in the
new energy power generation industry and has become the focus of attention of all
countries in the world.At the same time, due to the variability, randomness and
uncontrollability of light intensity, the stability of photovoltaic power generation
system is greatly affected.The photovoltaic power generation industry continues to
innovate, generating more and more electricity.Therefore, the new generation of us
should seriously study the impact of photovoltaic power generation.
Nowadays, the whole world will suffer from the serious problems of energy
shortage and air pollution. In this situation, the single-phase photovoltaic grid-
connected inverter control system has become the focus of attention and the key
direction of research and development all over the world.However, the LCL grid-
connected inverter in the single-phase photovoltaic grid-connected inverter control
system has become an important role of the system, and the current control has become
the focus of current designers.
Keywords: Wind Photovoltaic power generation; Maximum power tracking; Inverter;
DC/DC
目录
摘要 ....................................................................................................................................................I
Abstract...........................................................................................................................................III
第一章 绪论 .....................................................................................................................................1
1.1 研究课题背景......................................................................................................................1
1.2 国内外关于光伏发电并网控制的发展状况......................................................................5
1.3 并网逆变器发展现状和发展趋势�� ...............................................................................6
1.4 课题研究意义......................................................................................................................7
1.5 研究内容及章节安排.........................................................................................................8
第二章 光伏发电系统的组成 .........................................................................................................8
2.1 光伏发电系统的基本组成..................................................................................................8
2.2 光伏发电系统的分类..........................................................................................................9
2.3 光伏发电系统的应用........................................................................................................10
2.4 小结....................................................................................................................................11
第三章 光伏并网逆变系统及其控制技术 ...................................................................................11
3.1 光伏并网逆变系统............................................................................................................12
3.2 并网逆变系统滤波器..................................................................................................12
3.2.1 LCL 型滤波器模型........................................................................................13
3.2.2 无源阻尼..........................................................................................................15
3.2.3 有源阻尼..........................................................................................................17
3.2.4 混合阻尼..........................................................................................................19
3.3 光储发电系统并网系统模型分析�� .......................................................................20
3.3.1 光储发电系统并网系统概述�� ...................................................................20
3.4 LCL 型滤波器控制策略............................................................................................22
3.4.1 网侧电流反馈模型..........................................................................................23
3.5 本章小结......................................................................................................................24
第四章 光伏发电光储发电系统并网的仿真 ...............................................................................24
4.1 光伏发电光储发电系统并网的仿真模型搭建...............................................................24
4.2 仿真结果分析....................................................................................................................26
4.3 小结....................................................................................................................................29
第五章 总结 ...................................................................................................................................29
参考文献..........................................................................................................................................30
致 谢..........................................................................................................................................31
