Proposal of nonlinear stability indices of power swing oscillation in a multimachine power system

In this paper, we propose new nonlinear stability indices for multimode oscillations in power systems by using normal form analysis. One of the indices indicates the characteristics of damping factor with regard to its amplitude change, and the other indicates the stability region for each oscillati...

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Veröffentlicht in:	Electrical engineering in Japan 2005-06, Vol.151 (4), p.16-24
Hauptverfasser:	Amano, Hiroyuki, Kumano, Teruhisa, Inoue, Toshio, Taniguchi, Haruhito
Format:	Artikel
Sprache:	eng
Schlagworte:	modal interaction multimachine power system nonlinearity normal form theory stability index of power swing oscillation
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Zusammenfassung:	In this paper, we propose new nonlinear stability indices for multimode oscillations in power systems by using normal form analysis. One of the indices indicates the characteristics of damping factor with regard to its amplitude change, and the other indicates the stability region for each oscillation mode. We could obtain more detailed information on the stability of power system by using the proposed indices together with eigenvalues in comparison with eigenvalue analysis. We show the validity of the proposed indices by numerical simulation in a multimachine power system. © 2005 Wiley Periodicals, Inc. Electr Eng Jpn, 151(4): 16–24, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20070
ISSN:	0424-7760 1520-6416
DOI:	10.1002/eej.20070