电力电子技术在可再生能源并网中的应用

摘    要

随着全球能源结构的转型和可再生能源的快速发展，电力电子技术在可再生能源并网中的作用日益凸显。本文首先介绍了研究背景与意义，强调了电力电子技术对于提高可再生能源并网效率、保障电网稳定性的关键作用，并回顾了国内外的研究现状，指出了当前研究的不足之处。接着，本文详细阐述了电力电子技术的基础知识，包括各类变换器的原理、控制策略以及在可再生能源并网中的应用方式。同时，对可再生能源并网进行了概述，介绍了其结构、工作原理及关键技术。在此基础上，本文重点讨论了电力电子技术在可再生能源并网中的应用原理，包括光伏发电并网、风力发电并网、储能系统并网以及微电网与分布式能源并网等方面的内容，并展望了电力电子技术在可再生能源并网中的发展趋势。在应用分析部分，本文详细介绍了电力电子技术在可再生能源并网中的具体应用案例，如光伏逆变器的优化设计、风电变流器的精确控制、储能系统的高效管理以及微电网与分布式能源的智能化调度等。然而，本文也指出了电力电子技术在可再生能源并网中面临的一些问题，包括技术应用难题、电网稳定性与安全性挑战、经济性与成本考量以及标准化与互操作性问题。针对这些问题，本文提出了相应的对策，如加强技术创新与优化、提高电网稳定性与安全性、开展经济性与成本效益分析以及推动标准化与互操作性建设等。最后，本文总结了研究成果，并对未来的研究方向进行了展望。


关键词：电力电子技术  可再生能源并网  应用分析  


Abstract 
With the transformation of global energy structure and the rapid development of renewable energy, power electronics technology plays an increasingly prominent role in the grid connection of renewable energy. This paper first introduces the research background and significance, emphasizes the key role of power electronics technology in improving the efficiency of renewable energy grid connection and ensuring the stability of power grid, and reviews the current research situation at home and abroad, and points out the shortcomings of current research. Then, the basic knowledge of power electronics technology is described in detail, including the principle of various converters, control strategy and the application in the grid connection of renewable energy. At the same time, the grid connection of renewable energy is summarized, and its structure, working principle and key technologies are introduced. On this basis, this paper focuses on the application principle of power electronics technology in renewable energy grid connection, including photovoltaic power generation grid connection, wind power generation grid connection, energy storage system grid connection, micro-grid and distributed energy grid connection, and looks forward to the development trend of power electronics technology in renewable energy grid connection. In the application analysis part, this paper introduces the specific application cases of power electronics technology in the grid connection of renewable energy, such as the optimal design of photovoltaic inverter, the precise control of wind power converter, the efficient management of energy storage system, and the intelligent scheduling of microgrid and distributed energy. However, the paper also points out some problems that power electronics technology faces in the grid connection of renewable energy, including technical application challenges, grid stability and security challenges, economic and cost considerations, and standardization and interoperability issues. To solve these problems, this paper puts forward corresponding countermeasures, such as strengthening technological innovation and optimization, improving power grid stability and security, carrying out economic and cost-benefit analysis, and promoting standardization and interoperability construction. Finally, this paper summarizes the research results and looks forward to the future research direction.


Keyword:Power electronic technology  Renewable energy grid connection  Application analysis 




目    录
1引言 1
2电力电子技术与可再生能源并网理论 1
2.1电力电子技术基础 1
2.2可再生能源并网概述 2
2.3电力电子技术在可再生能源并网中的应用原理 2
3电力电子技术在可再生能源并网中的应用分析 3
3.1光伏发电并网 3
3.2风力发电并网 3
3.3储能系统并网 3
3.4微电网与分布式能源并网 4
4电力电子技术在可再生能源并网中面临的问题 4
4.1技术应用难题 4
4.2电网稳定性与安全性挑战 5
4.3经济性与成本考量 6
4.4标准化与互操作性问题 7
5电力电子技术在可再生能源并网中的对策 7
5.1技术创新与优化 7
5.2提高电网稳定性与安全性 8
5.3经济性与成本效益分析 8
5.4推动标准化与互操作性建设 9
6结论 10
参考文献 11
致谢 12