Aerodynamic design of blade and partial load calculation for wind turbine

A blade aerodynamic design method for a 1MW stall-regulated wind turbine based on Schmitz theory was presented. To aquire optimum aerodynamic performance and satisfy strength s conditions, 6 airfoils were selected acording to specified rules. The blade tip, blade root and the conections of diffirent airfoils were processed to satisfy technics and real situations. To account for the invalidation of schmitz theory at low or high wind speed, the schmitz theory was amended to calculate the partial load character of designed wind turbine, in which swirl losses, airfoil losses, tip losses were taken into consideration. The blade design results and partial load characters are in good agreement with real wind turbine.