Objective With the rapid development of the wind power sector, the planning and construction of wind farms have become a hot topic of current concern. Wind farm wake is one of the most significant influencing factors in the planning and construction of wind farms. This article aims to analyze the characteristics of wake interaction among multiple wind turbines, providing some reference value for wind farm layout.

Method Based on the FAST.Farm simulation software, this article investigated the wake effects of a wind farm consisting of six NREL-5 MW wind turbines. By altering the spacing between wind turbines within the wind farm, the output power and aerodynamic performance of the wind farm were analyzed. Subsequently, the wind turbines within the wind farm were staggered to study the changes in the wind farm's output power.

Result Research indicates that increasing the spacing between upstream and downstream wind turbines can significantly enhance the output power of the three downstream wind turbines. Furthermore, staggering individual wind turbines within a wind farm does not improve the overall output power of the wind farm. However, staggering multiple downstream wind turbines leads to a more significant increase in output power.

Conclusion Adjusting only the layout of turbine T3 in the upstream wind farm cannot improve the total power of the wind farm; when turbines T1 and T2 in the upstream wind farm adopt a staggered layout, the total power does not increase linearly with the increase of staggered spacing.