US 11,994,106 B2
Method for adapting an operating characteristic of a wind power installation
Ralf Messing, Aurich (DE); Hendrik Schnell, Aurich (DE); Harro Harms, Wiesmoor (DE); and Kemal Kartal, Bremerhaven (DE)
Assigned to Wobben Properties GmbH, Aurich (DE)
Filed by Wobben Properties GmbH, Aurich (DE)
Filed on Sep. 9, 2022, as Appl. No. 17/941,730.
Claims priority of application No. 21195819 (EP), filed on Sep. 9, 2021.
Prior Publication US 2023/0073582 A1, Mar. 9, 2023
Int. Cl. F03D 7/02 (2006.01)
CPC F03D 7/0276 (2013.01) [F05B 2260/70 (2013.01); F05B 2270/32 (2013.01); F05B 2270/324 (2013.01); F05B 2270/327 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for configuring an operating characteristic of a wind power installation,
wherein:
the wind power installation has a rotor, and the rotor has rotor blades having adjustable blade angles, and
the rotor is operable with a variable rotor rotational speed, and
wherein the method comprises:
controlling the wind power installation using the operating characteristic, wherein the operating characteristic represents a relationship between the variable rotor rotational speed and an operating variable, wherein the operating characteristic has a first characteristic portion with a first rotational speed range, and a second characteristic portion with a second rotational speed range, wherein the first rotational speed range has lower rotational speeds than the second rotational speed range; and
configuring the operating characteristic by:
increasing values of the operating variable of the first characteristic portion;
changing values of the operating variable of the second characteristic portion towards higher rotational speeds; and
increasing a rotational speed of the wind power installation in the second characteristic portion and decreasing a rotational speed of the wind power installation in the first characteristic portion, such that an expected total number of revolutions of the rotor over a predetermined lifetime of the wind power installation remains substantially the same.