Effects of turbine layout spacing and angle on wake interference of floating offshore wind farms

Wind turbines (WTs) operating downstream are often disturbed by the wake of WTs operating upstream, which often occurs in floating offshore wind farms (FOWFs). The phenomenon of wake interference can be reduced by a reasonable layout, which makes the wind farm (WF) more economical. Based on the blade element momentum (BEM) theory and dynamic wake meandering (DWM) model, this paper explores the optimal layout of WTs in FOWFs by simulating wake field and power variation under different spacing and angles. The results show that the changes of layout spacing and angle have little effect on WTs with different floating platforms. When the wind speed at the hub of the downstream WTs reaches the ambient wind, the required layout spacing increases with the increase of the inflow wind. With the increase of the layout angle, the layout spacing required for the floating offshore wind turbine (FOWT) to reach the rated power becomes smaller. The simulation of wake interference in FOWFs provides a reference for the layout of FOWT, which is beneficial for increasing the power density and economic benefits of WF.