Application of Morlet wavelets to supervise power system disturbances

被引：116

作者：

Huang, SJ ^{[1
]}

Hsieh, CT ^{[1
]}

Huang, CL ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1999年 / 14卷 / 01期

关键词：

Morlet wavelet; arc furnace; disturbances;

D O I：

10.1109/61.736728

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A wavelet transform approach using Morlet basis function is proposed to supervise power system disturbances in this paper. With the time-frequency localization characteristics embedded in wavelets, the time and frequency information of a waveform can be presented as a visualized scheme. Different from the fast Fourier transform, the wavelet transform approach is more efficient in monitoring various disturbances as time varies. The method has been tested on the detection of various simulated disturbances including voltage sag voltage swell, momentary interruption and oscillatory transients, and on the harmonic analysis of the are furnace from the field test data. Testing results demonstrated the practicality and advantages of the proposed method for the applications.

引用

页码：235 / 243

页数：9

共 22 条

[1]

[Anonymous], 1993, Ten Lectures of Wavelets

[2]

Chui C.K., 1992, An introduction to wavelets, V1, DOI DOI 10.1109/99.388960

[3] THE WAVELET TRANSFORM, TIME-FREQUENCY LOCALIZATION AND SIGNAL ANALYSIS [J].