公开(公告)号：US10097123B2

公开(公告)日：2018-10-09

申请号：US15726443

申请日：2017-10-06

Applicant: ABB Schweiz AG

Inventor： Ghanshyam Shrestha ,  Darren Tremeling ,  Waqas Arshad ,  Wen Ouyang ,  Jan Westerlund

IPC: H02P9/30 ,  H02K3/28 ,  H02K3/20 ,  H02K11/042 ,  H02K19/12

Abstract: A synchronous machine and related systems include a stator and rotor separated by an air gap. The rotor includes a rotating DC power supply coupled to exciter windings disposed adjacent the air gap. Power from air gap harmonics, including air gap slot harmonics induce current in the exciter windings, which is rectified and supplied to the rotor field windings. In operation, a desired current level in the rotor field windings can be achieved through control of the DC power supply or superposition of harmonics into the stator winding current which induces the prescribed current in exciter windings.

公开(公告)号：US20180034396A1

公开(公告)日：2018-02-01

申请号：US15726443

申请日：2017-10-06

Applicant: ABB Schweiz AG

Inventor： Ghanshyam Shrestha ,  Darren Tremeling ,  Waqas Arshad ,  Wen Ouyang ,  Jan Westerlund

IPC: H02P9/30 ,  H02K3/28 ,  H02K19/12 ,  H02K11/042

CPC classification number: H02P9/302 ,  H02K3/20 ,  H02K3/28 ,  H02K11/042 ,  H02K19/12

Abstract: A synchronous machine and related systems include a stator and rotor separated by an air gap. The rotor includes a rotating DC power supply coupled to exciter windings disposed adjacent the air gap. Power from air gap harmonics, including air gap slot harmonics induce current in the exciter windings, which is rectified and supplied to the rotor field windings. In operation, a desired current level in the rotor field windings can be achieved through control of the DC power supply or superposition of harmonics into the stator winding current which induces the prescribed current in exciter windings.