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    Permanent Magnet Electrical Machine Rotors and Construction Methods Therefor
    1.
    发明申请
    Permanent Magnet Electrical Machine Rotors and Construction Methods Therefor 有权
    永磁电机转子及其施工方法

    公开(公告)号：US20130062984A1

    公开(公告)日：2013-03-14

    申请号：US13419898

    申请日：2012-03-14

    申请人： Darren Dale Tremelling

    发明人： Darren Dale Tremelling

    IPC分类号： H02K1/28

    CPC分类号： H02K1/2733 ,  H02K1/12 ,  H02K1/28 ,  H02K1/30

    摘要： Permanent magnet electrical machine rotors and construction methods therefor are disclosed. Permanent magnet electrical machine rotors may include at least one magnet and at least one retention element. The at least one magnet may have a surface. An axial relative force maintained between the at least one magnet and the at least one retention element may urge the retention element along the surface to induce a hoop stress in the at least one retention element and a compressive stress within the at least one magnet.

    摘要翻译： 公开了永磁电机转子及其施工方法。 永磁电机转子可以包括至少一个磁体和至少一个保持元件。 至少一个磁体可以具有表面。 保持在所述至少一个磁体和所述至少一个保持元件之间的轴向相对力可以沿着所述表面推动所述保持元件以在所述至少一个保持元件中引起环向应力以及所述至少一个磁体内的压缩应力。

    Permanent magnet machine with hybrid cage and methods for operating same
    4.
    发明授权
    Permanent magnet machine with hybrid cage and methods for operating same 有权

    公开(公告)号：US10468952B2

    公开(公告)日：2019-11-05

    申请号：US14650857

    申请日：2013-11-20

    申请人： ABB Research Ltd. ,  Darren Dale Tremelling ,  Wen Ouyang

    发明人： Darren Dale Tremelling ,  Wen Ouyang

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

    摘要： 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.