| 摘要 |
The invention relates to a device for monitoring a wind energy installation (1) comprising a tower (2) and a rotor provided with rotor blades (5) and arranged on the tower, in terms of a possible collision of a rotor blade (5) with the tower (2). Said device comprises at least one distance sensor (7a, 7b) which is arranged on the wind energy installation (1) and used for the non-contact measurement of the distance between the rotor blades (5) and a pre-determined point on the wind energy installation (1). The device also comprises an electronic evaluation system in which the distance data measured by the at least one distance sensor (7a, 7b) is evaluated, said system emitting a collision warning in the event of a critical distance not being reached. |
