Measurement of Power Frequency Fluctuations Using the FFT |
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| Authors: | Ham Fredric M. Girgis Adly A. |
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| Affiliation: | The Government Aerospace Systems Division, Harris Corporation, Melbourne, FL 32902.; |
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| 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. |
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