摘要
对交直交型电力机车HXD30017谐波电流进行小波分析,并运用小波包理论及MATLAB工具箱计算得到了该谐波电流的有效值。同时对机车谐波电流的傅里叶分析,得到了信号的频谱图。结果表明小波变换对电气化铁路产生的谐波有很好的分析效果。
The Wavelet analysis is carried on the harmonic current of AC-DC-AC electric locomotive HXD]0017, and the harmonic current effective value is dervied by using wavelet packet theory and MATLAB toolbox. While the harmonic current of loeomotive is analiyzed by Fourier to obtain the signal spectrum. The results show that wavelet transform for the harmonic produced by electrification railway has very good effects.
出处
《电气传动自动化》
2012年第6期22-25,共4页
Electric Drive Automation
关键词
小波变换
傅立叶分析
谐波分析
wavelet transform
Fourier transform
harmonic analysis
