Title :
Is strong modal resonance a precursor to power system oscillations?
Author :
Dobson, Ian ; Zhang, Jianfeng ; Greene, Scott ; Engdahl, Henrik ; Sauer, Peter W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
We suggest a new mechanism for interarea electric power system oscillations in which two oscillatory modes interact near a strong resonance to cause one of the modes to subsequently become unstable. The possibility of this mechanism for oscillations is shown by theory and computational examples. Theory suggests that passing near strong resonance can be expected in general power system models. The mechanism for oscillations is illustrated in 3- and 9-bus examples with detailed generator models
Keywords :
busbars; power system stability; modal resonance; multi-bus system; power system oscillations; stability model; Bifurcation; Damping; Eigenvalues and eigenfunctions; Frequency; Power generation; Power system analysis computing; Power system modeling; Power system stability; Power systems; Resonance;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
