Phasor Estimation at off-nominal Frequencies using Frequency Domain Interpolation

Kumar, V Seshadri Sravan and Kumar, G Manoj and Kumar, A Santosh and Thukaram, D (2017) Phasor Estimation at off-nominal Frequencies using Frequency Domain Interpolation. In: IEEE Texas Power and Energy Conference (TPEC), FEB 09-10, 2017, College Station, TX.

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Abstract

Accurate estimation of phasor is essential for wide area monitoring and control of power systems. The accuracy requirements of phasor estimation for various class of applications are outlined by the IEEE Std. C37.118. This paper presents a frequency domain interpolation approach for phasor estimation at off-nominal frequencies. The proposed approach involves quadratic interpolation of complex DFT coefficients corresponding to fundamental and two side bin's namely the DC and second harmonic components. The advantage of the proposed approach is that an explicit knowledge of frequency is not essential. The performance of the proposed approach is analyzed using standard test signals and simulated voltage/current signals of practical equivalent systems.

Item Type:	Conference Proceedings
Publisher:	IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Additional Information:	IEEE Texas Power and Energy Conference (TPEC), College Station, TX, FEB 09-10, 2017
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	29 Jun 2017 06:47
Last Modified:	29 Jun 2017 06:47
URI:	http://eprints.iisc.ac.in/id/eprint/57302

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