Tower and related method for protecting a tower against wind-induced vibrations

A tower, comprising:

• an elongated and upright support structure;
• at least one movable mass device, said at least one movable mass device comprising:
• a chassis mechanically connected to said support structure;
• at least one mass configured for a movement in at least one linear direction;
• and
• at least one actuator configured to move said at least one mass in a controlled manner;
• and wherein said tower further comprises:
• at least one sensor configured to detect a vibration of said support structure;
• and
• at least one control unit operatively connected to said at least one sensor and to said at least one actuator, said at least one control unit being configured to control an inertial movement of said at least one mass in real time in order to counteract said vibration of said support structure.

A method for protecting a tower against wind-induced vibrations, wherein said tower comprises an elongated and upright support structure, said method comprising the steps of:

• providing said tower with at least one movable mass device comprising:
• a chassis mechanically connected to said support structure, at least one mass which is movable in at least one linear direction, at least one actuator to move said at least one mass in a controlled manner;
• detecting a vibration induced by wind on said support structure by at least one sensor;
• and
• controlling an inertial movement of said at least one mass in real time in order to counteract said wind-induced vibration.