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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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https://doi.org/10.5194/wes-2020-76
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2020-76
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  04 May 2020

04 May 2020

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A revised version of this preprint was accepted for the journal WES and is expected to appear here in due course.

Numerical and Experimental Simulation of Extreme Operational Conditions for Horizontal Axis Wind Turbines Based on the IEC Standard

Kamran Shirzadeh1,2, Horia Hangan1,3, and Curran Crawford1,4 Kamran Shirzadeh et al.
  • 1WindEEE Research Institute, University of Western Ontario, London, Ontario, N6M 0E2, Canada
  • 2Mechanical and Material Engineering, Western University, London, N6A 3K7, Canada
  • 3Civil and Environment Engineering, Western University, London, N6A 3K7, Canada
  • 4Mechanical Engineering, Victoria University, Victoria, V8W 2Y2, Canada

Abstract. In this study, the possibility of simulating some transient and deterministic extreme operational conditions for horizontal axis wind turbines based on the IEC 61400-1 standard in the Wind Engineering, Energy and Environment (WindEEE) Dome at Western University was investigated. There are 60 fans (a matrix of 4 by 15 with 0.8 m diameter each) on one of the walls of this hexagonal wind tunnel for creating straight flows which the power set-points for each fan can be specified individually. In addition, these fans have adjustable Inlet Guiding Vanes (IGV) that can be controlled uniformly across all of the fans. Using these capabilities, experiments were carried out for the Extreme Operational Gust (EOG), positive and negative Extreme Vertical Shear (EVS), and Extreme Horizontal Shear (EHS) cases, tailored for a 2.2 m HAWT scaled turbine. This study started by developing a numerical model for the test chamber, then using it to tune the fan setups for each extreme condition with proper scaling. Physical experiments then carried out using those settings, then a comparison made between the flow field time history and the prescribed conditions from the standard. The comparisons show promising results, this can be a contribution to future scholars investigating the interaction of the HAWT with these conditions in physical experiments.

Kamran Shirzadeh et al.

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Kamran Shirzadeh et al.

Kamran Shirzadeh et al.

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Latest update: 01 Dec 2020
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Short summary
The main goal of this study was to develop a physical simulation of some simplified extreme wind conditions that are defined by a standard for wind turbines. Most of the research works in this area are limited to numerical and theoretical studies. Being able to simulate these dynamic flow fields can be a contribution for future scholars working in the wind energy areas to make these wind energy systems more reliable which finally helps to accelerate the reduction of the cost of electricity.
The main goal of this study was to develop a physical simulation of some simplified extreme wind...
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