Patent ID: 8334608

Claim:
A locking mechanism for a wind turbine, wherein the wind turbine has a rotor shaft of a drive train rotatably mounted on a main frame of the wind turbine, wherein the rotor shaft is connectable to a rotor, the locking mechanism comprising: locking means configured to create a torque-proof connection between the rotor shaft and the main frame through form-locking, wherein the locking means is configured to be automatically engaged when reaching a target position; at least one braking device for supplying a braking torque to the drive train; a control unit; and first sensor means, wherein: the control unit is connected to the first sensor means, wherein the first sensor means is configured to detect at least a position of the rotor shaft, a rotational direction of the rotor shaft, a rotational speed of the rotor shaft and a status of the at least one braking device, and further wherein the at least one braking device is configured to be controlled by the control unit using sensor data from the first sensor means such that the rotor shaft is decelerated and brought to a complete stop in the target position.