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On the impact of stochastic wind feed-in on power grid stability and frequency quality
Held by Katrin Schmietendorf (Universität Münster)
20.11.2018, 16:15 Uhr
EW 731
Abstract:
Katrin Schmietendorf1,2, Hauke Hähne1,
Samyak R. Tamrakar3, Joachim Peinke1, and Oliver
Kamps2
1 Carl von Ossietzky
Universität Oldenburg
2 Westfälische
Wilhelms-Universität Münster
3 Jacobs University
Bremen
Feed-in fluctuations are one of the major challenges
for future power grids with a high share of renewables. Wind power is
one of the main renewable energy sources. It features turbulent-like
non-Gaussian statistics including correlations, extreme events,
Kolmogorov power spectrum, and intermittent increments.
We
present our results on the implications of progressive wind power
integration on grid stability and frequency quality. These results are
based on Kuramoto-like power grid models subjected to realistic wind
feed-in and supported by in-house grid frequency measurements.
We
show that intermittency is transferred into frequency fluctuations and
significantly reduces frequency quality. This phenomenon is beyond the
scope of electrical engineering up to now.
We conclude with an
outlook on the integration of storage units into Kuramoto-like models
and their potential with respect to frequency quality
improvement.