US 12,281,638 B2
Control of wind turbine during mechanical oscillation damping
Thomas Esbensen, Herning (DK)
Assigned to SIEMENS GAMESA RENEWABLE ENERGY A/S, Brande (DK)
Appl. No. 17/633,662
Filed by Siemens Gamesa Renewable Energy A/S, Brande (DK)
PCT Filed Jul. 24, 2020, PCT No. PCT/EP2020/070992
§ 371(c)(1), (2) Date Feb. 8, 2022,
PCT Pub. No. WO2021/028198, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 19191805 (EP), filed on Aug. 14, 2019.
Prior Publication US 2022/0316444 A1, Oct. 6, 2022
Int. Cl. F03D 7/02 (2006.01); F03D 7/04 (2006.01); F03D 9/11 (2016.01); H02P 9/10 (2006.01); H02P 101/15 (2016.01)
CPC F03D 7/0296 (2013.01) [F03D 7/0284 (2013.01); F03D 7/048 (2013.01); F03D 9/11 (2016.05); H02P 9/105 (2013.01); F05B 2260/964 (2013.01); F05B 2270/337 (2013.01); H02P 2101/15 (2015.01)] 15 Claims
OG exemplary drawing
 
1. A method of controlling a wind turbine during damping a mechanical oscillation of the wind turbine having a generator system coupled to a rotor at which a plurality of rotor blades are mounted, the method comprising:
generating a damping control signal to dampen the mechanical oscillation of one or more mechanical components of the wind turbine, the damping control signal generated based on a measurement of the one or more mechanical components;
performing damping control of the generator system based on the damping control signal causing damping related power output variation at an output terminal of the generator system; and
controlling an energy storage device connected to the output terminal of the generator system and connected to an output terminal of the wind turbine based on the damping control signal;
wherein controlling the energy storage based on the damping control signal comprises:
supplying an energy storage controller input signal based on the damping control signal to an energy storage controller;
generating an energy storage device control signal by the energy storage controller; and
controlling the energy storage by the energy storage device control signal;
wherein the generator system active power reference includes a preliminary power reference, being dynamic to comply to an operating point of the wind turbine, and a damping related power reference or damping control signal, being composed of one or more AC components.