| 摘要 |
A method for controlling a pitch angle of blades of a wind turbine rotor during an emergency stop process of the rotor from an operating state, includes the steps of: (i) continuously determining a measure of an angular acceleration of the rotor, (ii) initiating pitching of the rotor blades and continuing pitching until a time (t2) where the determined angular acceleration of the rotor is substantially zero, and (iii) resuming pitching of the rotor blades at the end of a predetermined time period (t3-t2) after the time (t2) where the determined angular acceleration of the rotor was substantially zero. A wind turbine including an emergency stop control system having a mechanism for controlling an emergency stop process of the wind turbine rotor according to such a method is also contemplated.
|
