公开(公告)号：US20230253901A1

公开(公告)日：2023-08-10

申请号：US17665908

申请日：2022-02-07

Applicant: ABB Schweiz AG

Inventor： Frederick L. Hoadley ,  Hoat V. Phung ,  Timothy S. Collins ,  Robert F. McElveen, JR.

IPC: H02P21/12 ,  H02P21/22 ,  H02P21/34

CPC classification number: H02P21/12 ,  H02P21/22 ,  H02P21/34 ,  H02P2207/05

Abstract: A system comprising a synchronous three-phase electric motor and a controller is provided. The synchronous three-phase electric motor comprises a rotor, a stator, a plurality of coils, and a plurality of switching devices. The plurality of coils formed from conductive windings each wound around one or more of a plurality of stator teeth of the stator. The plurality of coils comprises a plurality of permanent coils and a plurality of bypass coils. The plurality of switching devices configured to selectively switch between a tapped position and a primary position. The controller is configured to provide a first switching command to the plurality of switching devices to switch from the primary position to the tapped position based on a transition signal. The transition signal is based on comparing an electrical characteristic associated with one or more input currents to the plurality of switching devices with a threshold value.

公开(公告)号：US11949354B2

公开(公告)日：2024-04-02

申请号：US17665908

申请日：2022-02-07

Applicant: ABB Schweiz AG

Inventor： Frederick L. Hoadley ,  Hoat V. Phung ,  Timothy S. Collins ,  Robert F. McElveen, Jr.

IPC: H02P21/12 ,  H02P21/22 ,  H02P21/34

CPC classification number: H02P21/12 ,  H02P21/22 ,  H02P21/34 ,  H02P2207/05

Abstract: A system comprising a synchronous three-phase electric motor and a controller is provided. The synchronous three-phase electric motor comprises a rotor, a stator, a plurality of coils, and a plurality of switching devices. The plurality of coils formed from conductive windings each wound around one or more of a plurality of stator teeth of the stator. The plurality of coils comprises a plurality of permanent coils and a plurality of bypass coils. The plurality of switching devices configured to selectively switch between a tapped position and a primary position. The controller is configured to provide a first switching command to the plurality of switching devices to switch from the primary position to the tapped position based on a transition signal. The transition signal is based on comparing an electrical characteristic associated with one or more input currents to the plurality of switching devices with a threshold value.