摘要
电网谐波电流检测是电力系统质量分析和谐波补偿的关键技术,对小波变换在电网中的谐波电流检测原理进行了研究。根据小波变换的多分辨率分析,采用Mallat算法对电网谐波电流检测进行实现,将电网电流中的基波电流和谐波电流分离,并对小波变换谐波检测小波基的选取原则进行了分析,在基于TMS320F2812DSP的实验装置上进行了小波变换谐波检测实验。实验结果表明,该方法具有较高的检测精度。
Harmonic current detecting in power system is the key technology of power system quality and harmonic compensation. A method for harmonic current detecting in power system based on wavelet transform is proposed. Based on multi-resolution analysis and Mallat algorithm, the fundamental current is separated from the total harmonic current in power system. And the wavelet basis of harmonic detecting based on wavelet transform is analyzed. The method is realized on experimental platform based on TMS320F2812 and the result shows that this method has high precision.
出处
《计算机工程与设计》
CSCD
北大核心
2009年第3期732-734,共3页
Computer Engineering and Design
关键词
小波变换
多分辨率分析
MALLAT算法
电网谐波
谐波检测
wavelet transform
multi-resolution analysis
Mallat algorithm
power system harmonic
harmonic current detecting
