摘 要
随着现代电力电子设备的广泛应用，电力系统中的谐波污染问题日益严重，对电网的安全稳定运行和电能质量造成了显著影响，因此深入研究谐波检测与抑制技术具有重要的理论意义和实际价值本研究旨在提出一种高效、精确的谐波检测方法及相应的抑制策略，以提升电力系统的运行性能基于瞬时无功功率理论，本文改进了传统ip-iq算法，通过引入自适应滤波器优化检测精度，并结合滑模变结构控制设计了一种新型有源电力滤波器控制系统仿真与实验结果表明，所提方法能够快速准确地提取谐波分量，在动态响应和稳态误差方面表现出明显优势此外，该研究还探讨了多谐波源环境下的协调抑制方案，为复杂电网条件下的谐波治理提供了新思路总体而言，本文提出的检测与抑制技术在提高检测效率和抑制效果方面具有创新性，可为实际工程应用提供有力支持
关键词：谐波检测；瞬时无功功率理论；自适应滤波器；滑模变结构控制；有源电力滤波器
Abstract
With the widespread application of modern power electronic devices, harmonic pollution in power systems has become increasingly severe, significantly affecting the safe and stable operation of the grid as well as power quality. Therefore, in-depth research on harmonic detection and suppression technologies holds important theoretical significance and practical value. This study aims to propose an efficient and accurate harmonic detection method along with a corresponding suppression strategy to enhance the operational performance of power systems. Based on the instantaneous reactive power theory, the traditional ip-iq algorithm is improved by introducing an adaptive filter to optimize detection accuracy. Furthermore, a novel active power filter control system is designed by incorporating sliding mode variable structure control. Simulation and experimental results demonstrate that the proposed method can rapidly and accurately extract harmonic components, showing evident advantages in dynamic response and steady-state error. Additionally, this research explores a coordinated suppression scheme under multi-harmonic source environments, providing new insights for harmonic management in complex grid conditions. Overall, the detection and suppression techniques proposed in this paper exhibit innovation in improving detection efficiency and suppression effectiveness, offering strong support for practical engineering applications.
Keywords: Harmonic Detection；Instantaneous Reactive Power Theory；Adaptive Filter；Sliding Mode Variable Structure Control；Active Power Filter
目 录
摘 要 I
Abstract II
一、绪论 1
（一）电力系统谐波问题的研究背景与意义 1
（二）国内外谐波检测与抑制技术研究现状 1
（三）本文研究方法与技术路线 1
二、谐波检测技术原理与方法 2
（一）谐波检测的基本理论框架 2
（二）基于傅里叶变换的谐波分析方法 2
（三）小波变换在谐波检测中的应用 3
（四）新型谐波检测算法的比较与选择 3
三、谐波抑制技术的关键策略 4
（一）谐波抑制的基本原理与分类 4
（二）有源滤波器在谐波抑制中的作用 4
（三）无源滤波器的设计与优化方法 5
（四）混合滤波技术的应用与性能评估 5
四、谐波检测与抑制的实际应用案例 6
（一）实际电力系统的谐波特性分析 6
（二）谐波检测技术在工业场景中的应用 6
（三）谐波抑制方案在配电网中的实施效果 7
（四）谐波治理综合策略的经济性与可行性分析 7
结 论 8
致 谢 9
参考文献 10
