Title :
Estimating Electromechanical Mode Shape From Synchrophasor Measurements
Author :
Trudnowski, Daniel J.
Author_Institution :
Univ. of Montana, Butte, MT
Abstract :
A theoretical basis and signal-processing approach for estimating a power system´s electromechanical mode-shape properties using time-synchronized phasor measurements are presented. The relationship between modal eigenvectors and measurable power system quantities are derived. Spectral correlation analysis is used to implement the approach with demonstrative examples. This includes simulation examples as well as measured data from the western North American power system.
Keywords :
correlation methods; eigenvalues and eigenfunctions; modal analysis; phase measurement; power system measurement; signal processing; spectral analysis; electromechanical mode shape estimation; modal eigenvector; power system measurement; signal-processing; spectral correlation analysis; time-synchrophasor measurement; Electromechanical dynamics; mode shape; small-signal stability; synchronized phasor measurements;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2008.922226
