摘要
针对电力系统中的谐波干扰,提出一种基于正交小波变换分析方法,以Matlab仿真为基础,给出分析各次谐波特点的仿真结果.结果表明,小波变换不仅可以精确地分析谐波的特点,还可判断信号奇异性.这为抑制谐波干扰提供了理论依据,从而可使谐波分析准确度更高,误差更小.
A methed for analyzing the harmonic interference of the power system is put forward, which are based on wavelet transform and Matlab simulation and can show the simulation results of different harmonics It is shown that wavelet transform may analyze accurately characters of harmonic and estimate singularity of signal. This method offer a effective theoretical basis for restraining harmonic interference and improve analysis precision of the harmonic signal.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第1期43-46,共4页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(10474061)
关键词
谐波干扰
小波变换
信号分析
harmonic interference
wavelet transform
signal analysis
