| 摘要 |
Disclosed is a wind power plant comprising a rotor that is equipped with pitch-adjustable rotor blades (4) and a central control device (55). Individual pitch devices (6) encompassing an adjusting drive unit (7), a communication link (56) to the central control device (55), and a regulator (60) is provided for adjusting the rotor blades (4). Said individual pitch devices (6) further encompass a fault detector which is configured so as to recognize abnormal operating states as well as a triggering mechanism that causes the respective rotor blade (4) to be moved into an off position. The invention allows the individual pitch devices (6) to self-sufficiently recognize a fault and react accordingly, the adjustment of the rotor blades (4) being monitored. The invention makes it possible to correctively intervene in the blade adjustment such that the wind power plant can be shut off as quickly and safely as possible, thus making it possible to minimize unfavorable conditions, especially great stress on the rotor blade (4) or the entire wind power plant. The adjusting movement of the rotor blades (4) can be varied according to the requirements, such as different wind speed, turbulence, or even air flowing against the blades at an angle.
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