SYSTEM FOR TWISTING CABLES IN A WIND TURBINE TOWER

摘要

The invention relates to a wind turbine having a wind turbine tower and a nacelle provided on top of the tower to which a rotor hub with one or more wind turbine blades is rotatably mounted. A cable twisting system is arranged inside the tower and suspended from the bottom of the nacelle. The cable twisting system comprises cable spacing plates coupled to a suspension element. Guiding means guide the electrical cables from the nacelle to the bottom of the tower. The suspension element is a torsion element having a first end capable of twisting relative to a second end when torque is applied to the first end therefore allowing individual cable spacing plates to be rotated in a more uniform manner when the nacelle is yawing. This also allows upwards movement of the cable spacing plates caused by the applied torque to start at the uppermost cable spacing plate.

主权项

1. A wind turbine comprising:
a wind turbine tower having an inner side, a bottom, and a top; a nacelle provided on top of the wind turbine tower, the nacelle arranged on one or more yaw bearings configured to rotate the nacelle relative to the wind turbine tower; a rotor hub rotatably mounted to the nacelle and one or more wind turbine blades mounted to the rotor hub; a cable twisting system arranged inside the wind turbine tower, the cable twisting system comprising one or more cable spacing plates coupled to at least one suspension element, the cable spacing plates being distributed along a length of the cable twisting system, the cable spacing plates having one or more guides configured to guide one or more electrical cables from the top of the wind turbine tower towards the bottom of the wind turbine tower, the electrical cables being connected to the nacelle and extending inside the wind turbine tower through the top thereof; the suspension element having a first end facing the nacelle and a second end facing the bottom of the wind turbine tower, the wind turbine tower and suspension element having a common center axis; and wherein the first end of the suspension element is configured to twist relative to the second end when torque is applied to the first end, and the first end is configured to return to its initial position when the torque is removed.