A channel matching approach for estimating electromechanical mode shape and coherence

@article{Dosiek2009ACM,
  title={A channel matching approach for estimating electromechanical mode shape and coherence},
  author={Luke Dosiek and J. W. Pierre and D. J. Trudnowski and Ning Zhou},
  journal={2009 IEEE Power & Energy Society General Meeting},
  year={2009},
  pages={1-8}
}
A method of estimating a power system's electromechanical mode shape and coherence from time synchronized phasor measurements is presented. The approach uses a parametric estimate of the transfer function (TF) between signals at different buses throughout the power system. The relationship between the TF and mode shape and coherence is reviewed. A non-causal autoregressive exogenous (ARX) model is used in a least squares (LS) minimization to estimate the TF parameters and to estimate the… CONTINUE READING
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