公开(公告)号：US11594944B2

公开(公告)日：2023-02-28

申请号：US16930788

申请日：2020-07-16

Applicant: ABB Schweiz AG

Inventor： Áron Szücs ,  Juhani Mantere ,  Jahirul Islam

IPC: H02K16/04 ,  H02K1/12 ,  H02K1/276 ,  H02K21/14 ,  H02K29/03 ,  H02P23/04 ,  H02P27/06

Abstract: A method for controlling a synchronous double stator electric machine. A first stator and a first set of magnetic poles on a common rotor forms a first electric machine. A second stator and a second set of magnetic poles on the rotor forms a second electric machine. The first electric machine and the second electric machine is shifted mechanically by a predetermined angle. An electrical shift is produced to the control of at least the mechanically shifted electric machine with a respective frequency converter in order to at least partly compensate for the mechanical shift in the mechanically shifted electric machine.

公开(公告)号：US20240072592A1

公开(公告)日：2024-02-29

申请号：US18260347

申请日：2021-07-11

Applicant: ABB Schweiz AG

Inventor： Jori Keitamo ,  Aron Szucs ,  Ari Vartiainen ,  Juhani Mantere ,  Klas Sandholm

IPC: H02K3/28 ,  H02K21/22

CPC classification number: H02K3/28 ,  H02K21/22 ,  H02K29/03

Abstract: An annular stator provided with axial stator slots and stator teeth formed between adjacent stator slots. Each stator slot receives a conductor of a stator winding. The stator is formed of stator sectors. Each stator sector includes two outermost stator teeth and intermediate stator teeth between the two outermost stator teeth. A width of the two outermost stator teeth is equal. Adjacent stator slots within each stator sector are distanced by a first slot pitch and adjacent stator slots belonging to different stator sectors are distanced by a second slot pitch. The first slot pitch is smaller than the second slot pitch.