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Real-Time Optimization of Yaw Angle and Tip-Speed Ratio for a Six-Turbine Plant of NREL 5-MW Wind Turbine

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Engineering to Adapt (TELAC 2023)

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Energy loss in wind farms primarily occurs due to the aerodynamic interactions among wind turbines. Every wind turbine produces long aerodynamic wakes characterized by significant wind speed deficits and heightened turbulent kinetic energy. These wakes have a notable impact on the energy production of downstream turbines that overlap with them. Designing a wind farm that remains unaffected by the aforementioned energy losses is not feasible due to the constant variation in wind direction and short distances between the wind turbines. Using active control techniques, such as yaw control to redirect the wake or tip-speed ratio (TSR) control to weaken it, has emerged as a potential strategy to mitigate this issue partially. These techniques can adapt to changes in wind direction and speed, offering a means to address the problem to some extent. This study examines the effectiveness of implementing simultaneous yaw and TSR control in a wind farm comprising six turbines under a constant wind speed condition. Comparatively, TSR control proved to be more effective than yaw control. However, it is worth noting that the simultaneous application of both techniques resulted in even more significant energy savings. It is important to emphasize that the results are specific to the particular wind farm layout considered, and they are expected to vary if there are any changes in the farm’s configuration.

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Correspondence to Daniel Trevor Cannon .

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Hosseini, A., Cannon, D.T., Vasel-Be-Hagh, A. (2023). Real-Time Optimization of Yaw Angle and Tip-Speed Ratio for a Six-Turbine Plant of NREL 5-MW Wind Turbine. In: Ting, D.SK., Vasel-Be-Hagh, A. (eds) Engineering to Adapt. TELAC 2023. Springer Proceedings in Energy. Springer, Cham.

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