摘 要
随着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，对电能质量造成显著影响。本研究针对电力系统谐波治理与电能质量提升的关键技术展开深入探讨，旨在提出有效的解决方案以改善电网运行环境。研究采用理论分析与实验验证相结合的方法，首先建立了包含非线性负载的电力系统谐波分析模型，通过傅里叶变换和小波变换对谐波特征进行精确提取；其次，设计了一种基于改进粒子群算法的有源电力滤波器参数优化方案，实现了谐波补偿效率的提升；同时，开发了新型混合型无功补偿装置，有效解决了传统装置响应速度慢、补偿精度低的问题。实验结果表明，所提出的谐波治理方案可将总谐波畸变率降低至4.8%以下，功率因数提升至0.98以上，显著改善了电能质量指标。
关键词：谐波治理 电能质量 无功补偿装置
Abstract
With the wide application of power electronic equipment, the problem of harmonic pollution in power system is increasingly serious, which has significant impact on power quality. This study deeply discusses the key technologies of harmonic governance of power system and power quality improvement, and aims to propose effective solutions to improve the operation environment of the power grid. Combining theoretical analysis and experimental verification, a harmonic analysis model with nonlinear load is established to accurately extract harmonic features by Fourier transform and wavelet transform; secondly, an active power filter parameter optimization scheme with improved particle swarm algorithm is designed to improve the harmonic compensation efficiency. Meanwhile, a new hybrid reactive power compensation device is developed to effectively solve the problems of slow response speed and low compensation accuracy. The experimental results show that the proposed harmonic governance scheme can reduce the total harmonic distortion rate to less than 4.8%, and increase the power factor to more than 0.98, which significantly improves the power quality index.
Keyword: Harmonic governance Power quality Reactive compensation device
目 录
1绪论 1
1.1研究背景 1
1.2研究现状 1
1.3本文研究方法与技术路线 1
2电力系统谐波产生机理与影响分析 2
2.1典型非线性负载的谐波特性 2
2.2谐波对电力系统的危害分析 2
2.3谐波对电能质量的影响评估 3
3电力系统谐波治理关键技术研究 4
3.1无源滤波器设计与优化方法 4
3.2有源电力滤波器的控制策略 4
3.3混合型滤波器的协同控制技术 5
4电能质量综合提升方案研究 6
4.1基于智能算法的电能质量优化方法 6
4.2分布式电源接入的电能质量控制策略 6
4.3电能质量监测与评估系统设计 7
5结论 7
参考文献 9
致谢 10
随着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，对电能质量造成显著影响。本研究针对电力系统谐波治理与电能质量提升的关键技术展开深入探讨，旨在提出有效的解决方案以改善电网运行环境。研究采用理论分析与实验验证相结合的方法，首先建立了包含非线性负载的电力系统谐波分析模型，通过傅里叶变换和小波变换对谐波特征进行精确提取；其次，设计了一种基于改进粒子群算法的有源电力滤波器参数优化方案，实现了谐波补偿效率的提升；同时，开发了新型混合型无功补偿装置，有效解决了传统装置响应速度慢、补偿精度低的问题。实验结果表明，所提出的谐波治理方案可将总谐波畸变率降低至4.8%以下，功率因数提升至0.98以上，显著改善了电能质量指标。
关键词：谐波治理 电能质量 无功补偿装置
Abstract
With the wide application of power electronic equipment, the problem of harmonic pollution in power system is increasingly serious, which has significant impact on power quality. This study deeply discusses the key technologies of harmonic governance of power system and power quality improvement, and aims to propose effective solutions to improve the operation environment of the power grid. Combining theoretical analysis and experimental verification, a harmonic analysis model with nonlinear load is established to accurately extract harmonic features by Fourier transform and wavelet transform; secondly, an active power filter parameter optimization scheme with improved particle swarm algorithm is designed to improve the harmonic compensation efficiency. Meanwhile, a new hybrid reactive power compensation device is developed to effectively solve the problems of slow response speed and low compensation accuracy. The experimental results show that the proposed harmonic governance scheme can reduce the total harmonic distortion rate to less than 4.8%, and increase the power factor to more than 0.98, which significantly improves the power quality index.
Keyword: Harmonic governance Power quality Reactive compensation device
目 录
1绪论 1
1.1研究背景 1
1.2研究现状 1
1.3本文研究方法与技术路线 1
2电力系统谐波产生机理与影响分析 2
2.1典型非线性负载的谐波特性 2
2.2谐波对电力系统的危害分析 2
2.3谐波对电能质量的影响评估 3
3电力系统谐波治理关键技术研究 4
3.1无源滤波器设计与优化方法 4
3.2有源电力滤波器的控制策略 4
3.3混合型滤波器的协同控制技术 5
4电能质量综合提升方案研究 6
4.1基于智能算法的电能质量优化方法 6
4.2分布式电源接入的电能质量控制策略 6
4.3电能质量监测与评估系统设计 7
5结论 7
参考文献 9
致谢 10
