| 摘要 |
A wind turbine rotor (2), supported on a nacelle of a wind turbine to be freely rotatable, includes: at least two blades (3); a hub (4) to which the at least two blades (3) are attached; a spinner (5) disposed so as to cover the hub (4), the spinner (5) including an insulating material; a blade lightning-protection system (10) provided for each of the at least two blades; and a spinner lightning-protection system (20) provided for the spinner, the spinner lightning-protection system including at least one receptor (21,22). The at least one receptor is disposed so that, when being projected on a rotational plane (M) of the wind turbine rotor (2), at least a part of the at least one receptor being projected is positioned within an angular range corresponding to a circular-arc region between blade root portions of adjacent two of the at least two blades (3), the circular-arc region being a portion of a virtual circle, on the rotational plane, passing through the blade root portions of the at least two blades. The at least one receptor is disposed so that, when being projected on a plane including a rotation axis of the wind turbine rotor, at least a part of the at least one receptor being projected is positioned at a front side with respect of the blade root portions of the at least two blades, the front side being a hub side and a rear side being a nacelle side in an axial direction of the rotation axis. |
