Aerodynamic Performance Evaluation and Layout Exploration of Wind Turbine in Typical Mountainous Terrain

The wind shear in a typical mountainous terrain was explored by numerical simulation. ERS-100 wind turbine was chosen to analyze the performance in the typical mountainous terrain from four respects of wind profile, turbulence intensity, yaw and terrain blockage. The results show that the turbulence intensity is the important factor affecting the aerodynamic performance, the increase of turbulence intensity will lead to the large performance loss of nearly 50% at leeward slope;only the wind profile near the top of the mountain is close to the ideal uniform flow and loss is lower, but the performance loss is nearly 30% at the foot of hill;the installation yaw angle is small, which has a minor effect on performance;terrain blockage only impacts on windward slope.