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Impact of synchronous machine constants and models on the analysis of torsional dynamics

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3 Author(s)
V. Atarod ; Dept. of Electr. Eng., Toronto Univ., Ont., Canada ; P. L. Dandeno ; M. R. Iravani

The authors investigate the impact of synchronous machine parameters and second-order and third-order models on the phenomenon of torsional dynamics. The results were compared with those obtained from the conventional (2d, 1q) model. For each model, the effect of rotor-field differential leakage flux on the damping of the torsional oscillations is studied. Numerical values of the elements corresponding to each model were obtained based on a parameter fitting process to a set of stand-still frequency response (SSFR) test results. An eigen analysis method was used for the studies. The eigen analysis results were verified by digital time-domain simulation, using the electromagnetic transients program (EMTP)

Published in:

IEEE Transactions on Power Systems  (Volume:7 ,  Issue: 4 )