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ABSTRACT
The wake effect will cause wind farm power loss. Wake redirection is a wind farm control strategy to reduce wake losses and increase total power output. In the previous research, analytical wake models with steady-wind-condition assumptions were always employed to optimize the yaw angle of wind turbines, in which wind direction change and yaw process were not considered. Therefore, this study proposes a dynamic yaw control methodology for wind farms to balance the energy gain and the number of yaw actions. It was found that when the dead band is 10°, the past time is 15 min, and the wind direction bins step is 8°, the number of yaws of the front row unit is only 97.2% of that under the conventional control, and the total power generation is increased by 3.41%.
Acknowledgements
This work was supported by the National Key Research and Development Program of China (No.2019YFE0104800) and National Natural Science Foundation of China project “Study on fluid-structure interaction of wind turbine blade with large deformation based on elastic actuator line model” (NSFC 52006071).
Disclosure statement
No potential conflict of interest was reported by the author(s).