Wake interference between turbines in wind farms can lead to significant losses in the overall power output from farms. Wake steering is a strategy in which yaw is introduced in the upstream turbines with respect to
The wake steering method was tested in an array of six utility-scale turbines where it increased the power production for wind speeds near the site annual average between 7 % and 13 % and decreased variability by up to
Additionally, the momentum-conserving wake superposition method is extended to combine the transverse velocities induced by yawed wind turbines, and the secondary wake steering effect
A leading wind farm control strategy to mitigate wake effects is wake steering, which involves the intentional misalignment of upstream turbines with respect to the wind direction to deflect their
Wake steering is a type of wind farm control in which wind turbines in a wind farm operate with an intentional yaw misalignment to mitigate the effects of its wake on downstream turbines in order to increase overall
Finally, the new proposed multiple wake model is applied to wind farm modelling and optimization framework, which enables the maximization of wind farm power production by wake steering control. The wind sector width of 2° with the wind speed bin of 0.5 m/s is proposed for the lookup-table-based wake steering optimization.
Our method increased the power production for these wind directions between 7%and 13%for moderate wind speeds near the site annual average and up to 47%for low wind speeds, representing a statistically significant demonstration of wake steering power optimization for a multiturbine wind farm.
An application of wake steering for a six-turbine wind farm is shown in Fig. 1 Band C. Such a control strategy has been shown to be beneficial for downwind turbines in a number of wind tunnel experiments (32, 33) and computational studies (34???37).
This chapter describes the evolution of analytical models to describe wake steering and that better captures the secondary aerodynamic effects of wake steering in a large wind farm. These secondary effects include yaw-added wake recovery as well as secondary wake steering that significantly boosts the impact of wake steering.
Wind farm control strategies are being developed to mitigate wake losses in wind farms, increasing energy production. Wake steering is a type of wind farm control in which a wind turbine's yaw position is misaligned from the wind direction, causing its wake to deflect away from downstream turbines.
Because wake steering can either increase or decrease turbine loads, future work should improve optimization-oriented load models that can be leveraged for multi-objective wind farm control optimization that maximizes energy and minimizes fatigue.
