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The impact of turbulent renewable energy production on power grid stability and quality

  • Katrin SchmietendorfEmail author
  • Joachim Peinke
  • Oliver Kamps
Regular Article

Abstract

Feed-in fluctuations induced by renewables are one of the key challenges to the stability and quality of electrical power grids. In particular short-term fluctuations disturb the system on a time scale, on which load balancing does not operate yet and the system is intrinsically governed by self-organized synchronization. Wind and solar power are known to be strongly non-Gaussian with intermittent increment statistics in these time scales. We investigate the impact of short-term wind fluctuations on the basis of a Kuramoto-like power grid model considering stability in terms of desynchronization and frequency and voltage quality aspects. We present a procedure to generate realistic feed-in fluctuations with temporal correlations, Kolmogorov power spectrum and intermittent increments. By comparison to correlated Gaussian noise of the same spectrum and Gaussian white noise, we found out that while the correlations are essential to capture the likelihood of severe outages, the intermittent nature of wind power has significant consequences on power quality: intermittency is directly transferred into frequency and voltage fluctuations yielding a novel type of fluctuations, which is beyond engineering status of knowledge.

Keywords

Statistical and Nonlinear Physics 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  • Katrin Schmietendorf
    • 1
    Email author
  • Joachim Peinke
    • 1
  • Oliver Kamps
    • 2
  1. 1.ForWind and Institute of Physics, Carl von Ossietzky Universität OldenburgOldenburgGermany
  2. 2.Center for Nonlinear Science and Institute for Theoretical Physics, Westfälische Wilhelms-Universität MünsterMünsterGermany

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