摘 要
随着现代电力系统向智能化方向发展，谐波污染问题日益突出，严重影响了电网的稳定运行和电能质量。为解决这一问题，本文聚焦于电力电子技术在智能电网中的谐波抑制应用，旨在探索高效、可靠的谐波治理方法。研究通过分析智能电网中谐波产生的机理及其传播特性，结合先进电力电子器件的动态补偿能力，提出了一种基于自适应滤波算法的混合型有源电力滤波器（APF）设计方案。该方案利用数字信号处理器（DSP）实现对谐波电流的实时检测与补偿，并通过优化控制策略显著提升了系统的响应速度和补偿精度。实验结果表明，所提出的谐波抑制技术能够有效降低电网中的谐波含量，使总谐波畸变率（THD）满足国际标准要求，同时具备良好的鲁棒性和经济性。
关键词：谐波抑制 自适应滤波算法 有源电力滤波器
Abstract
As modern power systems evolve towards intelligence, harmonic pollution has become increasingly prominent, severely impacting the stable operation of power grids and electrical quality. To address this issue, this paper focuses on the application of power electronics technology in harmonic suppression within smart grids, aiming to explore efficient and reliable methods for harmonic management. The study analyzes the mechanisms and propagation characteristics of harmonics in smart grids, combining the dynamic compensation capabilities of advanced power electronic devices, to propose an adaptive filter algorithm-based hybrid active power filter (APF) design. This scheme utilizes digital signal processors (DSPs) for real-time detection and compensation of harmonic currents, significantly enhancing system response speed and compensation accuracy through optimized control strategies. Experimental results show that the proposed harmonic suppression technology can effectively reduce harmonic content in power grids, meeting international standards for total harmonic distortion (THD), while also demonstrating good robustness and economic efficiency.
Keyword:Harmonic Suppression Adaptive Filtering Algorithm Active Power Filter
目 录
引言 1
1智能电网谐波问题分析 1
1.1谐波产生的机理与特性 1
1.2智能电网中的谐波来源 2
1.3谐波对智能电网的影响评估 2
1.4当前谐波抑制技术的局限性 3
2电力电子技术基础及应用 3
2.1电力电子器件的发展概述 3
2.2电力电子在智能电网中的作用 3
2.3主动谐波抑制的关键技术 4
2.4电力电子装置的性能要求 4
3基于电力电子的谐波抑制方法研究 5
3.1有源滤波器的设计与实现 5
3.2自适应谐波抑制算法研究 5
3.3高效谐波检测技术分析 6
3.4动态谐波补偿策略优化 6
4实验验证与系统优化 6
4.1实验平台搭建与测试方法 7
4.2谐波抑制效果的实验分析 7
4.3系统稳定性的评估与改进 7
4.4技术经济性与可行性分析 8
结论 8
参考文献 10
致谢 11
