large-scaled blade has posed many problems related to design and production. After introducing the features of
blade with thick airfoils and flatback, based on relevant parameters of Huaren 100 kW wind turbine, the paper designed
blade with thick airfoils and flatback, introduced blade parameter design, and analyzed the aerodynamic performance of
blades using GH bladed software, obtaining the relationship between power output of wind turbine with blade tip speed
ratio Cp. Furthermore, it analyzed the aerodynamic performance of original design blades, modified blades and Huaren
100 kW blades, and assessed the aerodynamic performance of modified blade.