NWP-CFD 축소화에 의한 육상풍력 자원지도 고해상도화

Abstract

An accurate prediction of the wind energy production is essential in the initial design process of wind farms. Many researchers use meteorological data obtained from Numerical Weather Prediction (NWP) methods to predict wind energy production. The NWP method does not consider the influence of local topography and surface roughness on wind conditions. In Korea, most of onshore wind farms are installed in mountainous areas with complex topography, which makes the meteorological data obtained from only NWP method not applicable for the generation of wind resource map. The NWP-CFD coupled method, which uses the meteorological data from NWP method as the boundary condition of the CFD simulation, is adopted to overcome the limitations inherent in the NWP method. In this way, the spatial resolution of onshore wind resource map is downscaled to 100m-level considering the effects of the complex topography on the wind conditions.