US 12,341,445 B2
Position observer synchronization for three-phase generators
Nuno Miguel Amaral Freire, Brande (DK); Paul Godridge, Cheadle (GB); and Zhan-Yuan Wu, Sheffield (GB)
Assigned to Siemens Gamesa Renewable Energy A/S, Brande (DK)
Filed by Siemens Gamesa Renewable Energy A/S, Brande (DK)
Filed on Jul. 13, 2023, as Appl. No. 18/221,758.
Claims priority of application No. 22185938 (EP), filed on Jul. 20, 2022.
Prior Publication US 2024/0030848 A1, Jan. 25, 2024
Int. Cl. H02P 21/13 (2006.01); H02K 7/18 (2006.01); H02P 21/18 (2016.01)
CPC H02P 21/13 (2013.01) [H02K 7/183 (2013.01); H02P 21/18 (2016.02)] 14 Claims
OG exemplary drawing
 
1. A method of operating an electrical synchronous machine comprising a rotor and a stator having a first winding set and at least one second winding set, the method comprising:
using a first position observer configured to observe the first winding set in order to observe a first value of rotor position;
synchronizing the machine based on the first observed value or an external initial value of the rotor position, wherein operating the machine comprises:
controlling a first converter based on the first observed value of the rotor position, the first converter being connected to the first winding set; and
synchronizing a second converter based on the first observed value of the rotor position, the second converter being connected to the second winding set.