Permanent magnet machine with hybrid cage and methods for operating same

    公开(公告)号:US10468952B2

    公开(公告)日:2019-11-05

    申请号:US14650857

    申请日:2013-11-20

    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.

    PERMANENT MAGNET MACHINE WITH HYBRID CAGE AND METHODS FOR OPERATING SAME
    5.
    发明申请
    PERMANENT MAGNET MACHINE WITH HYBRID CAGE AND METHODS FOR OPERATING SAME 审中-公开
    具有混合笼的永久磁铁机及其操作方法

    公开(公告)号:US20150318774A1

    公开(公告)日:2015-11-05

    申请号:US14650857

    申请日:2013-11-20

    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。

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