下载后可任意编辑2024 届 分 类 号 : TP273 单位代码 :10452 毕业论文电力谐波检测与分析 姓 名 刘明吉 学 号 202415840309 年 级 06 级 专 业 电气工程及其自动化 系 (院) 信息学院 指导老师 周海玲 2010 年 03 月 27 日摘 要随着电子电力技术的进展,电力电子装置带来的谐波问题对电力系统安全、稳定构成潜在威胁,给周围电器环境带来了极大影响。如何能把谐波的危害最大限度地减少,是目前电力系统领域极为关注的问题,而解决这一问题的关键下载后可任意编辑在于定量地确定谐波的成分、幅值和相位等。提高电网谐波监测分析水平,对于抑制高次谐波含量是十分必要和有价值的。论文首先对目前国内外电力谐波检测与分析方法进行了综述与展望,然后对电力谐波的基本概念和特征参数进行了说明。简单阐述了基于模拟滤波器、神经网络、傅立叶变换、瞬时无功功率理论、小波变换算法的电力系统谐波检测和分析方法,并给出了相应装置的框图。关键词:谐波; 检测; 电力系统;傅里叶变换AbstractWith the development of power electronics,harmonics have become a potential threat to the secure , stable and economic operation of power system and have greatly influenced the surrounding electrical atmosphere.How to minimize the damage of harmonics is an issue of 下载后可任意编辑great concern to the field of power systems. The key to solution of this issue lies in the quantitative determination of the composition magnitude and phases of harmonious waves. It is vital to improve the monitoring and analysis of harmonious wave in the electric network in order to inhibit the high-frequency harmonious wave.This paper first of all made a review and prospective study of the detection and analysis approaches of the harmonious wave both in China and abroad,specified the basic concepts and characteristic parameters of power harmonies. The harmonic detection and analysis method based on Analog Filter, neural network Frayzer transformation, instantaneous reactive power theory,wavelet...