公开(公告)号：US20150318774A1

公开(公告)日：2015-11-05

申请号：US14650857

申请日：2013-11-20

Applicant: ABB RESEARCH LTD.

Inventor： Darren Dale Tremelling ,  Wen Ouyang

IPC: H02K21/46

CPC classification number: H02K21/042 ,  H02K11/042 ,  H02K21/46 ,  H02K2213/06

Abstract: A permanent magnet machine with a hybrid cage and methods for operating same are disclosed. According to one aspect, the subject matter described herein includes a rotor and hybrid cage for an electrical machine, the rotor comprising a rotor body having a central axis and including a plurality of permanent magnets positioned to create a plurality of rotor magnetic poles distributed around a peripheral surface of the rotor. The rotor also includes a hybrid cage that includes conductive loops around each of the rotor magnetic poles, where the conductive loops are controllable to form a closed circuit or an open circuit around each of the rotor magnetic poles. A closed circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is present, such as during a fault condition, and an open circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is not present, such as during normal operation.

Abstract translation: 公开了一种具有混合笼的永久磁铁机及其操作方法。 根据一个方面，本文所述的主题包括用于电机的转子和混合笼，所述转子包括具有中心轴线的转子体，并且包括多个永磁体，所述多个永磁体被定位成产生分布在其周围的多个转子磁极 转子周边表面。 转子还包括一个混合笼，其包括围绕每个转子磁极的导电环，其中导电环可控制以形成围绕每个转子磁极的闭合回路或开路。 当存在具有超过阈值幅度的场强或场强的变化的磁场时，例如在故障状态期间，可产生闭合电路，并且当具有场强或 例如在正常操作期间，不存在超过阈值幅度的场强的变化。

公开(公告)号：US10468952B2

公开(公告)日：2019-11-05

申请号：US14650857

申请日：2013-11-20

Applicant: ABB Research Ltd. ,  Darren Dale Tremelling ,  Wen Ouyang

Inventor： Darren Dale Tremelling ,  Wen Ouyang

IPC: H02K21/46 ,  H02K21/04 ,  H02K11/042

Abstract: A permanent magnet machine with a hybrid cage and methods for operating same are disclosed. According to one aspect, the subject matter described herein includes a rotor and hybrid cage for an electrical machine, the rotor comprising a rotor body having a central axis and including a plurality of permanent magnets positioned to create a plurality of rotor magnetic poles distributed around a peripheral surface of the rotor. The rotor also includes a hybrid cage that includes conductive loops around each of the rotor magnetic poles, where the conductive loops are controllable to form a closed circuit or an open circuit around each of the rotor magnetic poles. A closed circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is present, such as during a fault condition, and an open circuit may be created when a magnetic field having a field strength or change of field strength that exceeds a threshold magnitude is not present, such as during normal operation.