FAST MEASUREMENT OF POWER SYSTEM FREQUENCY IN THE FREQUENCY DOMAIN

• Abstract:

  In paper, an algorithm for fast measurement and estimation of power system frequency is presented. The frequency is calculated by an interpolation of the amplitude coefficients of the discrete Fourier transform (DFT). An analysis is made to study the influence of the leakage effect when the rectangular window and the Hanning window are used. Interpolations with longer time of measurement and with larger number of points decrease the systematic errors. The proposed method achieves accuracy in measuring the frequency under a hundredth of Hertz.
• Keywords:

  power system, frequency estimation, interpolated DFT
• Download:

  PWC-2006-TC4-041u.pdf
• DOI:

  _unreg_wc-2006.TC4-041

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