Wind turbine rotor blade and wind turbine for wind power generation

Abstract

To provide a wind turbine rotor blade capable of protecting a base material in the blade tip portion of the wind turbine blade from liquid droplet erosion due to raindrops to improve durability of the wind turbine rotor blade, thereby lengthening the interval of maintenance of the wind turbine rotor blade. It is provided with a base material provided with an outer skin material formed of fiber-reinforced plastic, a protective coating having wear resistance that is applied over the entire surface of the base material, and a protective tape having wear resistance that is affixed to the leading edge portion of the protective coating in the blade tip portion.

1 . A wind turbine rotor blade, comprising:
 a base material provided with an outer skin material formed of fiber-reinforced plastic;   a protective coating having wear resistance that is applied over the entire surface of the base material; and   a protective tape having wear resistance that is affixed to a leading edge portion of the protective coating in the blade tip portion.   
     
     
         2 . A wind turbine rotor blade, comprising:
 a base material provided with an outer skin material formed of fiber-reinforced plastic;   a protective coating having wear resistance that is applied to a leading edge portion of the base material in the blade tip portion; and   a protective tape having wear resistance that is affixed to the entire surface of the protective coating.   
     
     
         3 . The wind turbine rotor blade according to  claim 1 , wherein the leading edge portion in the blade tip portion is a region in which liquid droplet erosion may occur due to raindrops. 
     
     
         4 . The wind turbine rotor blade according to  claim 1 , wherein:
 the blade tip portion is a region ranging from 80% to 100% given that a blade root is 0% and a blade tip is 100%, or a region in which a tip speed is 100 m/sec to 80 m/sec when the wind turbine rotor blade is rotating at rated rotor speed; and   the leading edge portion is a region ranging from 0% to 10% of the rear surface given that a leading edge is 0% and a trailing edge is 100%, and a region ranging from 0% to 10% of the rear surface.   
     
     
         5 . A wind turbine for wind power generation, comprising the wind turbine rotor blade according to any one of  claims 1 .