Title :
Measurement of Power Frequency Fluctuations Using the FFT
Author :
Ham, Fredric M. ; Girgis, Adly A.
Author_Institution :
The Government Aerospace Systems Division, Harris Corporation, Melbourne, FL 32902.
Abstract :
A new method for detecting fluctuations in the fundamental frequency component of a power system, by relating it to a leakage coefficient in the FFT, is presented. The phenomenon of leakage in the FFT is used advantageously to increase spectral resolution. The leakage coefficient is a quantitative measure of the deviation from the fundamental frequency component with respect to the sampling frequency. Theoretical aspects are considered along with a method for on-line implementation.
Keywords :
Circuits; Discrete Fourier transforms; Fast Fourier transforms; Fluctuations; Fourier transforms; Frequency domain analysis; Frequency measurement; Power measurement; Power system restoration; Power systems;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.1985.350158
