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Intermittent Fingerprints in Wind-Turbine Interactions

  • Emil Hedevang
  • Klaus Biß
  • Jochen Cleve
  • Martin Greiner
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 141)

Abstract

We show that the turbulent wind observed at an offshore wind farm is non-Gaussian through analysis of velocity increments, extended self-similarity and intermittency in the energy flux. We then modify Gaussian turbulence using multi-fractal fields and reproduce most of the observed non-Gaussianity. By using cubed velocities as a simplistic wind-turbine interaction model, we demonstrate how the turbulence intensity, integral length, and the intermittency seen in non-Gaussian turbulence make fingerprints on the turbine power. These fingerprints are to some extend verified by comparing measured power with simulated power using a wind-turbine interaction simulator.

Keywords

Turbulence Intensity Turbine Power Velocity Increment Simulated Power Offshore Wind Farm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Emil Hedevang
    • 1
    • 2
  • Klaus Biß
    • 3
  • Jochen Cleve
    • 2
  • Martin Greiner
    • 1
  1. 1.University of AarhusAarhusDenmark
  2. 2.Siemens Wind PowerHamburgGermany
  3. 3.Justus Liebig UniversitätGiessenGermany

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