Abstract:For the use of small and medium-sized wind power test sites and the effective use of wind energy resources, provided two layout plans: “trapezoidal layout” and “distributed layout”. Based on WAsP to simulate the annual generating capacity and wake losses for both plans. It is concluded that the annual generating capacity and wake loss of the “distributed layout” are better than the “trapezoidal layout”. Based on the characteristics of the prevailing wind direction and the second main wind direction in the area, carried out numerical simulation of two different plans. Using CFD numerical simulation method to deeply analyze the specific reasons of wake loss, obtained the relationship between the wake velocity interaction of the position, and the third wind direction is added to adjust the position, and finally got the optimal layout. The annual generating capacity of the wind power test site is increased to 142.323 MWh, and the wake loss of the wind turbine is reduced to 0.219%.