Identification of Interarea Modes From Ringdown Data by Curve-Fitting in the Frequency Domain

Abstract

Low damping ratios of interarea modes in the power system result in peaks at their natural frequencies in the discrete Fourier transform (DFT) representation of ringdown data. This has been a motivation to develop a nonparametric DFT-based modal identification method. However, this method has difficulty estimating damping ratios. This paper proposes a… (More)

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@article{Hwang2017IdentificationOI, title={Identification of Interarea Modes From Ringdown Data by Curve-Fitting in the Frequency Domain}, author={Jin Kwon Hwang and Yong Liu}, journal={IEEE Transactions on Power Systems}, year={2017}, volume={32}, pages={842-851} }