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)


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.


Turbulence Intensity Turbine Power Velocity Increment Simulated Power Offshore Wind Farm 
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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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