Summary

International Symposium on Nonlinear Theory and its Applications

2009

Session Number:C1L-A

Session:

Number:C1L-A1

Coherent Dynamics and Instability of Power Grids

Yoshihiko Susuki,  Igor Mezi?,  Takashi Hikihara,  

pp.-

Publication Date:2009/10/18

Online ISSN:2188-5079

DOI:10.34385/proc.43.C1L-A1

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Summary:
We describe a structure of model for short-term swing dynamics of multi-machine power grids, exhibiting an instability phenomenon termed the Coherent Swing Stability (CSI). This model is based on the swing equations with a linear term representing the interconnection between synchronous machines in a power grid. We analyze the New England 39-bus test system exhibiting CSI and show that the phenomenon happens in the dynamical system with one nonlinear mode that is weak relative to many linear oscillatory modes.