摘要
随着全球能源结构转型和可再生能源的快速发展，分布式发电系统成为构建智能电网的重要组成部分。电力电子变换器作为连接分布式电源与电网的关键设备，在提高系统效率、稳定性和灵活性方面发挥着不可替代的作用。本文针对分布式发电系统中电力电子变换器的应用与优化展开研究，旨在解决现有系统中存在的能量转换效率低、电能质量差以及并网稳定性不足等问题。通过建立多端口变换器拓扑模型，提出了一种基于自适应控制算法的优化策略，该方法能够在不同工况下实现对变换器参数的实时调整，显著提高了系统的动态响应速度和稳态精度。实验结果表明，所提出的优化方案不仅有效提升了变换器的能量转换效率，还改善了输出电能质量，增强了系统的鲁棒性。此外，本文创新性地引入了模块化设计思想，实现了变换器硬件结构的标准化和通用化，降低了制造成本，简化了维护流程。通过对实际工程案例的分析验证，证明了该方案在分布式发电系统中的可行性和优越性，为未来相关领域的研究提供了新的思路和技术参考。
关键词：分布式发电系统；电力电子变换器；自适应控制算法
Abstract
With the global energy structure transformation and rapid development of renewable energy, distributed generation systems have become an essential component in constructing smart grids. Power electronic converters, as critical devices connecting distributed power sources to the grid, play an irreplaceable role in enhancing system efficiency, stability, and flexibility. This paper focuses on the application and optimization of power electronic converters in distributed generation systems, aiming to address issues such as low energy conversion efficiency, poor power quality, and insufficient grid-connected stability. By establishing a multi-port converter topology model, an optimization strategy based on adaptive control algorithms is proposed. This method enables real-time adjustment of converter parameters under different operating conditions, significantly improving the dynamic response speed and steady-state accuracy of the system. Experimental results demonstrate that the proposed optimization scheme not only effectively enhances the energy conversion efficiency of the converter but also improves the output power quality and robustness of the system. Furthermore, this paper innovatively introduces modular design concepts, achieving standardization and generalization of the converter hardware structure, thereby reducing manufacturing costs and simplifying maintenance procedures. Through the analysis and verification of actual engineering cases, the feasibility and superiority of this solution in distributed generation systems are confirmed, providing new ideas and technical references for future research in related fields.
Keywords：Distributed Generation System; Power Electronic Converter; Adaptive Control Algorithm
目 录
摘要 I
Abstract II
一、绪论 1
(一) 研究背景与意义 1
(二) 国内外研究现状 1
(三) 本文研究方法 2
二、分布式发电系统中的变换器需求分析 2
(一) 分布式电源特性分析 2
(二) 变换器功能需求 3
(三) 关键性能指标要求 4
三、电力电子变换器的拓扑结构优化 4
(一) 常用拓扑结构综述 4
(二) 拓扑结构优化设计 5
(三) 效率与可靠性提升 6
四、控制策略对变换器性能的影响 6
(一) 控制策略概述 6
(二) 稳定性与动态响应 7
(三) 控制算法优化方向 8
结 论 10
参考文献 12
随着全球能源结构转型和可再生能源的快速发展，分布式发电系统成为构建智能电网的重要组成部分。电力电子变换器作为连接分布式电源与电网的关键设备，在提高系统效率、稳定性和灵活性方面发挥着不可替代的作用。本文针对分布式发电系统中电力电子变换器的应用与优化展开研究，旨在解决现有系统中存在的能量转换效率低、电能质量差以及并网稳定性不足等问题。通过建立多端口变换器拓扑模型，提出了一种基于自适应控制算法的优化策略，该方法能够在不同工况下实现对变换器参数的实时调整，显著提高了系统的动态响应速度和稳态精度。实验结果表明，所提出的优化方案不仅有效提升了变换器的能量转换效率，还改善了输出电能质量，增强了系统的鲁棒性。此外，本文创新性地引入了模块化设计思想，实现了变换器硬件结构的标准化和通用化，降低了制造成本，简化了维护流程。通过对实际工程案例的分析验证，证明了该方案在分布式发电系统中的可行性和优越性，为未来相关领域的研究提供了新的思路和技术参考。
关键词：分布式发电系统；电力电子变换器；自适应控制算法
Abstract
With the global energy structure transformation and rapid development of renewable energy, distributed generation systems have become an essential component in constructing smart grids. Power electronic converters, as critical devices connecting distributed power sources to the grid, play an irreplaceable role in enhancing system efficiency, stability, and flexibility. This paper focuses on the application and optimization of power electronic converters in distributed generation systems, aiming to address issues such as low energy conversion efficiency, poor power quality, and insufficient grid-connected stability. By establishing a multi-port converter topology model, an optimization strategy based on adaptive control algorithms is proposed. This method enables real-time adjustment of converter parameters under different operating conditions, significantly improving the dynamic response speed and steady-state accuracy of the system. Experimental results demonstrate that the proposed optimization scheme not only effectively enhances the energy conversion efficiency of the converter but also improves the output power quality and robustness of the system. Furthermore, this paper innovatively introduces modular design concepts, achieving standardization and generalization of the converter hardware structure, thereby reducing manufacturing costs and simplifying maintenance procedures. Through the analysis and verification of actual engineering cases, the feasibility and superiority of this solution in distributed generation systems are confirmed, providing new ideas and technical references for future research in related fields.
Keywords：Distributed Generation System; Power Electronic Converter; Adaptive Control Algorithm
目 录
摘要 I
Abstract II
一、绪论 1
(一) 研究背景与意义 1
(二) 国内外研究现状 1
(三) 本文研究方法 2
二、分布式发电系统中的变换器需求分析 2
(一) 分布式电源特性分析 2
(二) 变换器功能需求 3
(三) 关键性能指标要求 4
三、电力电子变换器的拓扑结构优化 4
(一) 常用拓扑结构综述 4
(二) 拓扑结构优化设计 5
(三) 效率与可靠性提升 6
四、控制策略对变换器性能的影响 6
(一) 控制策略概述 6
(二) 稳定性与动态响应 7
(三) 控制算法优化方向 8
结 论 10
参考文献 12
