Some techniques for the analysis and visualization of time-varying waveform distortions

被引：8
|
作者：
Xu, J. [1 ]
Senrou, N. [2 ]
Suryanarayanan, S. [2 ]
Ribeiro, P. [2 ,3 ]
机构：
[1] Florida State Univ, Dept Elect & Comp Engn, Tallahassee, FL 32310 USA
[2] Florida State Univ, Ctr Adv Power Syst, Tallahassee, FL 32310 USA
[3] Calvin Coll, Dept Engn, Grand Rapids, MI 49646 USA
来源：
2006 38TH ANNUAL NORTH AMERICAN POWER SYMPOSIUM, NAPS-2006 PROCEEDINGS | 2006年
关键词：
fast Fourier transform; power quality; S-Transform; short time Fourier transform; time-varying waveform distortions; wavelet transform;
D O I：
10.1109/NAPS.2006.360153
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The time-varying nature of waveform distortions requires a precise analytical tool that is essential in power quality analysis. The time-frequency representation (TFR) provides a powerful method for identification of the time-varying nature of the waveform distortions. The paper presents a comparative study on four techniques for analysis and visualization of waveform distortions with time-varying amplitudes. The techniques include the traditional fast Fourier transform (FFT) and three TFR techniques, which are the Short Time Fourier Transform (STFT), the Discrete Wavelet Transform (DWT), and the S-Transform.
引用
收藏
页码：257 / +
页数：2
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