A Novel Wake Control Approach for Power Generation Improvement of Three Wind Turbines in a Wind Farm

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The total power generation of a wind farm is significantly affected by the adverse wake generation of upstream wind turbines on the aerodynamic performance of the downstream wind turbines. This paper aims to provide a novel hybrid wake control strategy to improve the power generation of horizontal-axis wind turbines in a wind-farm layout. A numerical simulation based on the actuator line method with large eddy simulation (ALM-LES) is performed to investigate the airflow around three-dimensional NREL 5MW turbines in a three-by-one layout. The yaw angle and tilt angle of the wind turbines are in the range of (-30 < yaw < 30) and ( 0 < titl < 35), respectively. Firstly, the combined effects of yaw-control and tilt-control methods on the velocity profile, vorticity generation and turbulent kinetic energy in the wake region of the multiscale wind farm are investigated. Afterwards, the total power generation of the wind farm is compared with previous wake control methods of wind turbines. It was observed that the proposed hybrid wake control method could improve the total power generation by 9.94% compared to the previous wind turbine wake control techniques. The hybrid control strategy can deviate the wake much better than typical single-control methods. An optimization analysis is also provided to find the most appropriate yaw angles and tilt angles of the wind turbines subject to varying wind speeds.
Original languageEnglish
Article number121001
Number of pages9
JournalJournal of Engineering for Gas Turbines and Power
Issue number12
Early online date28 Sept 2022
Publication statusPublished - 1 Dec 2022
EventASME Turbo Expo 2022
: Turbomachinery Technical Conference & Exposition
- Rotterdam Ahoy Convention Centre, Rotterdam, Netherlands
Duration: 13 Jun 202217 Jun 2022


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