초록 ▼

A wind turbine is configurable with at least one blade is pitched to provide relatively high sensitivity to wind direction or sheer so as to perform a rudder function which moves the blades such that the vertical plane defined by the blade ends is substantially parallel to the wind direction. In one

A wind turbine is configurable with at least one blade is pitched to provide relatively high sensitivity to wind direction or sheer so as to perform a rudder function which moves the blades such that the vertical plane defined by the blade ends is substantially parallel to the wind direction. In one aspect, the wind turbine has at least two different blades having two different blade pitches. In one embodiment, the rudder action configures a two bladed wind turbine such that a non-rudder blade, having a pitch different from the rudder blade, has its free end pointing substantially directly into the wind, providing relatively low cross-sectional resistance to the wind and accordingly relatively low load.

대표청구항 ▼

1. Apparatus for control of blade pitch in a wind turbine having a plurality of blades each having a blade pitch, comprising:a first pitch actuator, coupled to a first blade of said wind turbine, wherein said first blade has an adjustable blade pitch and wherein said first pitch actuator is controll

1. Apparatus for control of blade pitch in a wind turbine having a plurality of blades each having a blade pitch, comprising:a first pitch actuator, coupled to a first blade of said wind turbine, wherein said first blade has an adjustable blade pitch and wherein said first pitch actuator is controllable to adjust the pitch of said first blade, to position said first blade to have a first blade pitch different from the pitch of one of said plurality of blades.