Unlike flat terrain, when air flows through mountainous terrain, it is affected by undulating terrain and ground obstacles, forming complex wind field basins. This leads to the actual power generated by wind turbines being lower than the predicted power. Due to the complexity and uncertainty of the terrain and environment of wind farms, there is a significant difference between the measured power of wind farms and the actual output power of wind turbines. Therefore, studying the influence of complex terrain on wind speed in wind farms is of great significance for the site selection and construction of wind turbines. This paper adopts numerical reconstruction of the actual complex mountain terrain to determine the computational domain of the complex terrain, and compares the existing data to verify the reliability of the model. By changing the ground roughness of the mountain model, the influence of roughness on the wind speed variation at different measurement points in the mountain was analyzed. The variation characteristics of wind speed at various environmental measurement points under different terrain positions and wind turbine operation conditions under complex terrain conditions were mainly studied. Through the numerical calculation of wind speed measurement data and the wind speed variation data table of wind speed measurement points, the accuracy of wind power numerical calibration in wind farms under complex terrain conditions was studied.
Guan et al. (Thu,) studied this question.