电力系统保护与控制2012，Vol.40Issue(15)：35-39,5.
基于小波变换的电力系统谐波检测方法研究
A method of power system harmonic detection based on wavelet transform
曾瑞江 1杨震斌 2柳慧超2
作者信息
- 1. 广东电网公司电力科学研究院,广东广州510000
- 2. 安徽科大智能电网技术有限公司,安徽合肥230088
- 折叠
摘要
Abstract
Based on the wavelet multi-resolution analysis, a kind of sampling frequency selection method is proposed. It is effective in extracting the fundamental wave signal and the given harmonics signal. Harmonics signal is analyzed with wavelet transform, reasonable decomposition levels are selected, and then the harmonic detection results caused by sampling frequency in different ranges are discussed. The correctness of the method is tested by simulation. Finally, the method is used in F2812DSP based harmonic detection device for long time operation and test in the distribution network automation system. Results show that the method has a fast computing speed, a quick reaction, and a real-time tracking of harmonic changes.关键词
小波变换/谐波分析/DSPF2812/采样频率/多分辨分析Key words
wavelet transform/harmonic analysis/DSPF2812/sampling frequency/multi-resolution analysis分类
信息技术与安全科学引用本文复制引用
曾瑞江,杨震斌,柳慧超..基于小波变换的电力系统谐波检测方法研究[J].电力系统保护与控制,2012,40(15):35-39,5.
