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@ARTICLE{Sharafutdinov:849934,
author = {Sharafutdinov, Konstantin and Rydin Gorjao, Leonardo and
Matthiae, Moritz and Faulwasser, Timm and Witthaut, Dirk},
title = {{R}otor-angle versus voltage instability in the third-order
model for synchronous generators},
journal = {Chaos},
volume = {28},
number = {3},
issn = {1089-7682},
address = {Woodbury, NY},
publisher = {American Institute of Physics},
reportid = {FZJ-2018-04029},
pages = {033117 -},
year = {2018},
abstract = {We investigate the interplay of rotor-angle and voltage
stability in electric power systems. To this end, we carry
out a local stability analysis of the third-order model
which entails the classical power-swing equations and the
voltage dynamics. We provide necessary and sufficient
stability conditions and investigate different routes to
instability. For the special case of a two-bus system, we
analytically derive a global stability map.A reliable supply
of electric power requires a stable operation of the
electric power grid. Thousands of generators must run in a
synchronous state with fixed voltage magnitudes and fixed
relative phases. The ongoing transition to a renewable power
system challenges the stability as line loads and temporal
fluctuations increase. Maintaining a secure supply thus
requires a detailed understanding of power system dynamics
and stability. Among various models describing the dynamics
of synchronous generators, analytic results are available
mainly for the simplest second-order model which describes
only the dynamics of nodal frequencies and voltage phase
angles. In this article, we analyze the stability of the
third order model including the transient dynamics of
voltage magnitudes. Within this model we provide analytical
insights into the interplay of voltage and rotor-angle
dynamics and characterize possible sources of instability.
We provide novel stability criteria and support our studies
with the analysis of a network of two coupled nodes, where a
full analytic solution for the equilibria is obtained and a
bifurcation analysis is performed.},
cin = {IEK-STE},
ddc = {530},
cid = {I:(DE-Juel1)IEK-STE-20101013},
pnm = {153 - Assessment of Energy Systems – Addressing Issues of
Energy Efficiency and Energy Security (POF3-153) /
VH-NG-1025 - Helmholtz Young Investigators Group
"Efficiency, Emergence and Economics of future supply
networks" $(VH-NG-1025_20112014)$ / CoNDyNet - Kollektive
Nichtlineare Dynamik Komplexer Stromnetze $(PIK_082017)$},
pid = {G:(DE-HGF)POF3-153 / $G:(HGF)VH-NG-1025_20112014$ /
$G:(Grant)PIK_082017$},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29604628},
UT = {WOS:000428818800020},
doi = {10.1063/1.5002889},
url = {https://juser.fz-juelich.de/record/849934},
}