Applications of the windowed FFT to electric power quality assessment

被引：202

作者：

Heydt, GT ^{[1
]}

Fjeld, PS

Liu, CC

Pierce, D

Tu, L

Hensley, G

机构：

[1] Arizona State Univ, Tempe, AZ 85287 USA

[2] Univ Washington, Seattle, WA 98195 USA

[3] Pacific Gas & Elect Co, San Francisco, CA 94106 USA

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1999年 / 14卷 / 04期

关键词：

power quality; FFT; windowed FFT; Fourier transform; frequency analysis; signal processing; IEEE standard 1159;

D O I：

10.1109/61.796235

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：

This paper discusses the application of the windowed fast Fourier transform to electric power quality assess; ment. The windowed FFT is a time windowed version of the discrete time Fourier transform. The window width may be adjusted and shifted to scan through large volumes of power quality data. Narrow window widths. are used for detailed analyses, and wide window widths are used to move rapidly across archived power quality data measurements. The mathematics of the method are discussed and applications are illustrated.

引用

页码：1411 / 1416

页数：6

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