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，不仅影响电能质量，还对电力系统的稳定运行构成威胁。为解决这一问题，本文旨在深入研究电力系统中谐波的产生机理、传播特性及其治理技术。通过建立精确的谐波源数学模型，结合时域和频域分析方法，揭示了非线性负荷对电网谐波的影响规律。在此基础上，提出了一种基于自适应滤波算法与智能控制策略相结合的新型谐波抑制方法，该方法能够实时跟踪并补偿谐波电流，有效提高了谐波治理的效果。实验结果表明，所提出的治理方案在不同工况下均能显著降低谐波畸变率，改善电能质量，尤其在复杂多变的配电网环境中表现出色。此外，本文还探讨了谐波与其他电能质量问题之间的相互作用关系，提出了综合评估体系，为电力系统的谐波监测与治理提供了理论依据和技术支持，具有重要的工程应用价值。本文的研究成果不仅丰富了谐波分析理论，还为实际工程应用提供了有效的解决方案，推动了电力系统电能质量领域的技术进步。
关键词：谐波污染；谐波抑制方法；自适应滤波算法
Abstract
With the widespread application of modern power electronic devices, harmonic pollution in power systems has become increasingly severe, not only affecting power quality but also posing a threat to the stable operation of power systems. To address this issue, this paper aims to conduct an in-depth study on the generation mechanisms, propagation characteristics, and mitigation technologies of harmonics in power systems. By establishing accurate mathematical models of harmonic sources and employing both time-domain and frequency-domain analysis methods, the impact patterns of nonlinear loads on grid harmonics are revealed. On this basis, a novel harmonic suppression method combining adaptive filtering algorithms with intelligent control strategies is proposed. This method can track and compensate harmonic currents in real-time, significantly enhancing the effectiveness of harmonic mitigation. Experimental results demonstrate that the proposed solution can substantially reduce harmonic distortion rates and improve power quality under various operating conditions, particularly excelling in complex and dynamic distribution network environments. Furthermore, this paper explores the interaction between harmonics and other power quality issues, proposing a comprehensive evaluation system that provides theoretical foundations and technical support for harmonic monitoring and mitigation in power systems, offering significant engineering application value. The research outcomes not only enrich the theoretical fr amework of harmonic analysis but also provide effective solutions for practical engineering applications, promoting technological advancements in the field of power quality within power systems.
Keywords：Harmonic Pollution; Harmonic Suppression Methods; Adaptive Filtering Algorithm
目 录
摘要 I
Abstract II
一、绪论 1
(一) 电力系统谐波问题的背景与意义 1
(二) 国内外谐波研究现状综述 1
(三) 本文研究方法与技术路线 2
二、谐波分析理论基础 2
(一) 谐波的基本概念与特性 2
(二) 谐波分析的数学模型 3
(三) 常用谐波分析方法比较 4
三、谐波源识别与监测技术 4
(一) 谐波源的主要类型 4
(二) 实时谐波监测系统设计 5
(三) 谐波源定位与追踪方法 6
四、谐波治理技术及应用 6
(一) 主动谐波治理策略 7
(二) 被动谐波抑制方法 7
(三) 治理效果评估体系构建 8
结 论 10
参考文献 11
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，不仅影响电能质量，还对电力系统的稳定运行构成威胁。为解决这一问题，本文旨在深入研究电力系统中谐波的产生机理、传播特性及其治理技术。通过建立精确的谐波源数学模型，结合时域和频域分析方法，揭示了非线性负荷对电网谐波的影响规律。在此基础上，提出了一种基于自适应滤波算法与智能控制策略相结合的新型谐波抑制方法，该方法能够实时跟踪并补偿谐波电流，有效提高了谐波治理的效果。实验结果表明，所提出的治理方案在不同工况下均能显著降低谐波畸变率，改善电能质量，尤其在复杂多变的配电网环境中表现出色。此外，本文还探讨了谐波与其他电能质量问题之间的相互作用关系，提出了综合评估体系，为电力系统的谐波监测与治理提供了理论依据和技术支持，具有重要的工程应用价值。本文的研究成果不仅丰富了谐波分析理论，还为实际工程应用提供了有效的解决方案，推动了电力系统电能质量领域的技术进步。
关键词：谐波污染；谐波抑制方法；自适应滤波算法
Abstract
With the widespread application of modern power electronic devices, harmonic pollution in power systems has become increasingly severe, not only affecting power quality but also posing a threat to the stable operation of power systems. To address this issue, this paper aims to conduct an in-depth study on the generation mechanisms, propagation characteristics, and mitigation technologies of harmonics in power systems. By establishing accurate mathematical models of harmonic sources and employing both time-domain and frequency-domain analysis methods, the impact patterns of nonlinear loads on grid harmonics are revealed. On this basis, a novel harmonic suppression method combining adaptive filtering algorithms with intelligent control strategies is proposed. This method can track and compensate harmonic currents in real-time, significantly enhancing the effectiveness of harmonic mitigation. Experimental results demonstrate that the proposed solution can substantially reduce harmonic distortion rates and improve power quality under various operating conditions, particularly excelling in complex and dynamic distribution network environments. Furthermore, this paper explores the interaction between harmonics and other power quality issues, proposing a comprehensive evaluation system that provides theoretical foundations and technical support for harmonic monitoring and mitigation in power systems, offering significant engineering application value. The research outcomes not only enrich the theoretical fr amework of harmonic analysis but also provide effective solutions for practical engineering applications, promoting technological advancements in the field of power quality within power systems.
Keywords：Harmonic Pollution; Harmonic Suppression Methods; Adaptive Filtering Algorithm
目 录
摘要 I
Abstract II
一、绪论 1
(一) 电力系统谐波问题的背景与意义 1
(二) 国内外谐波研究现状综述 1
(三) 本文研究方法与技术路线 2
二、谐波分析理论基础 2
(一) 谐波的基本概念与特性 2
(二) 谐波分析的数学模型 3
(三) 常用谐波分析方法比较 4
三、谐波源识别与监测技术 4
(一) 谐波源的主要类型 4
(二) 实时谐波监测系统设计 5
(三) 谐波源定位与追踪方法 6
四、谐波治理技术及应用 6
(一) 主动谐波治理策略 7
(二) 被动谐波抑制方法 7
(三) 治理效果评估体系构建 8
结 论 10
参考文献 11
