| 摘要 |
A blade for a wind turbine comprises a first free end and a second end attachable a wind turbine shaft, a first surface joining a second surface along a first side edge and a second side edge, the first and second surfaces defining an airfoil section. At the first end, a first portion of the airfoil section extending from the first side edge to the longitudinal axis is symmetrical about the longitudinal axis with a second portion of the airfoil section extending from the second side edge to the longitudinal axis. There is also disclosed a wind turbine comprising an even number of blades, the even number being four or more. In addition, there is disclosed a method of processing a radar signal reflected from a wind turbine having an even number of blades to reduce an amplitude of a clutter signal generated by the wind turbine, as well as a tower for a wind turbine. |
