US 12,140,122 B2
Wind turbine electrical power generating system
Marco Matuonto, Vizcaya (ES); José Luis Rodriguez Izal, Burlada (ES); and Erhan Demirok, Izmir (TR)
Assigned to Siemens Gamesa Renewable Energy Innovation & Technology S.L., Sarriguren (ES)
Appl. No. 17/919,600
Filed by Siemens Gamesa Renewable Energy Innovation & Technology S.L., Sarriguren (ES)
PCT Filed Apr. 27, 2021, PCT No. PCT/EP2021/060941
§ 371(c)(1), (2) Date Oct. 18, 2022,
PCT Pub. No. WO2021/219610, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 20382340 (EP), filed on Apr. 27, 2020.
Prior Publication US 2023/0160365 A1, May 25, 2023
Int. Cl. F03D 9/25 (2016.01)
CPC F03D 9/255 (2017.02) [F05B 2220/70646 (2013.01); F05B 2220/7068 (2013.01); F05B 2260/4031 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A wind turbine electrical power generating system, comprising:
a first generator configured to be mechanically coupled to a rotor of a wind turbine to receive rotational mechanical energy from the rotor;
a second generator configured to be mechanically coupled to the rotor of the wind turbine to receive rotational mechanical energy from the rotor; and
an electrical power conversion system including at least a first power converter section and a second power converter section,
wherein the first power converter section is electrically coupled between a rotor winding of the first generator and a coupling point and wherein a stator winding of the first generator is electrically coupled to the coupling point such that in operation, only a fraction of electrical power generated by the first generator passes through the power conversion system, wherein electrical coupling between the stator winding of the first generator and the coupling point bypasses the power conversion system, and
wherein the second power converter section is electrically coupled between an electrical power output of the second generator and the coupling point such that in operation, the electrical power provided by the second generator to the coupling point passes through the power conversion system.