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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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Discussion papers
https://doi.org/10.5194/wes-2019-5
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2019-5
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research articles 18 Feb 2019

Research articles | 18 Feb 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Wind Energy Science (WES).

Initial Results From a Field Campaign of Wake Steering Applied at a Commercial Wind Farm: Part 1

Paul Fleming1, Jennifer King1, Katherine Dykes1, Eric Simley1, Jason Roadman1, Andrew Scholbrock1, Patrick Murphy1,3, Julie K. Lundquist1,3, Patrick Moriarty1, Katherine Fleming1, Jeroen van Dam1, Christopher Bay1, Rafael Mudafort1, Hector Lopez2, Jason Skopek2, Michael Scott2, Brady Ryan2, Charles Guernsey2, and Dan Brake2 Paul Fleming et al.
  • 1National Wind Technology Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA
  • 2NextEra Energy Resources, 700 Universe Blvd, Juno Beach, FL, 33408, USA
  • 3Dept. Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, 80303, USA

Abstract. Wake steering is a form of wind farm control in which turbines use yaw offsets to affect wakes in order to yield an increase in total energy production. In this first phase of a study of wake steering at a commercial wind farm, two turbines implement a schedule of offsets. Results exploring the observed performance of wake steering are presented, as well as some first lessons learned. For two closely spaced turbines, an approximate 13 % increase in energy was measured on the downstream turbine over a 10° sector. Additionally, the increase of energy for the combined upstream/downstream pair was found to be in line with prior predictions. Finally, the influence of atmospheric stability over the results is explored.

Paul Fleming et al.
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Paul Fleming et al.
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Wake steering is a form of wind farm control in which turbines use yaw offsets to affect wakes in order to yield an increase in total energy production. In this first phase of a study of wake steering at a commercial wind farm, two turbines implement wake steering. Results exploring the observed performance of wake steering are presented, as well as some first lessons learned. For two closely spaced turbines, an approximate 13 % increase in energy was measured on the downstream turbine.
Wake steering is a form of wind farm control in which turbines use yaw offsets to affect wakes...
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