METHOD FOR OPERATING A WIND TURBINE, AND WIND TURBINE

摘要

A method for operating a wind turbine having a nacelle disposed in a rotatable manner on a tower and a rotor having three rotor blades, which can be brought into a standstill position after a stoppage command, and in which at least two of the three rotor blades can be pitched about a rotor-blade longitudinal axis, which includes rotating the nacelle into an azimuth position transverse to a wind direction to attain the standstill position, bringing/holding a rotor blade into a range of an operating position that corresponds substantially to a blade pitch angle in a partial-load range below a full-load range of the wind turbine and bringing/holding each of the other two rotor blades into a range of a feathered position, wherein the rotor, after attainment of the standstill position, is stabilized by incident wind flowing transversely in relation to a direction of a rotor axis.

主权项

1. A method for bringing a wind turbine into a standstill position after a stoppage command, wherein the wind turbine includes a nacelle disposed in a rotatable manner on a tower and a rotor having three rotor blades, and wherein at least two of the three rotor blades can be pitched about a rotor-blade longitudinal axis, the method comprising:
rotating the nacelle into an azimuth position transverse to a wind direction; bringing a rotor blade into, or holding the rotor blade in, a range of an operating position that corresponds substantially to a blade pitch angle in a partial-load range below a full-load range of the wind turbine; and bringing each of the other two rotor blades into, or holding each of the two other two rotor blades in, a range of a feathered position; wherein the rotor, after attainment of the standstill position, is stabilized by incident wind flowing transversely in relation to a direction of a rotor axis.