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    System and method for heating ferrite magnet motors for low temperatures
    1.
    发明公开
    System and method for heating ferrite magnet motors for low temperatures 审中-公开
    用于低温加热铁氧体磁体电机的系统和方法

    公开(公告)号：EP2866334A3

    公开(公告)日：2015-12-16

    申请号：EP14190298.1

    申请日：2014-10-24

    申请人： General Electric Company

    发明人： Reddy, Patel Bhageerath ,  El-Refaie, Ayman Mohamed Fawzi ,  Huh, Kum-Kang

    IPC分类号： H02K15/12 ,  H02K1/30 ,  H02K21/44 ,  H02K21/12 ,  H02K21/26 ,  H02K1/27

    CPC分类号： H02P29/60 ,  H02K1/17 ,  H02K1/246 ,  H02K1/2766 ,  H02K1/30 ,  H02K11/25 ,  H02K15/12 ,  H02K15/125 ,  H02K21/12 ,  H02K21/26 ,  H02K21/44

    摘要： A system and method for heating ferrite permanent magnets in an electrical machine is disclosed. The permanent magnet machine (10) includes a stator assembly (12) and a rotor assembly (14), with a plurality of ferrite permanent magnets (32) disposed within the stator assembly or the rotor assembly to generate a magnetic field that interacts with a stator magnetic field to produce a torque. A controller (22) of the electrical machine is programmed to cause a primary field current to be applied to the stator windings to generate the stator magnetic field, so as to cause the rotor assembly to rotate relative to the stator assembly. The controller (22) is further programmed to cause a secondary current to be applied to the stator windings to selectively generate a secondary magnetic field, the secondary magnetic field inducing eddy currents in at least one of the stator assembly and the rotor assembly to heat the ferrite permanent magnets.

    摘要翻译： 公开了一种用于加热电机中的铁氧体永磁体的系统和方法。 永磁电机（10）包括定子组件（12）和转子组件（14），多个铁氧体永磁体（32）设置在定子组件或转子组件内以产生磁场，该磁场与 定子磁场产生转矩。 电机的控制器（22）被编程为使主场电流施加到定子绕组以产生定子磁场，以使转子组件相对于定子组件旋转。 控制器（22）进一步被编程以使次级电流被施加到定子绕组以选择性地产生次级磁场，次级磁场在定子组件和转子组件中的至少一个中感应涡电流以加热 铁氧体永磁体。

    System and method for heating ferrite magnet motors for low temperatures
    4.
    发明公开
    System and method for heating ferrite magnet motors for low temperatures 审中-公开
    系统与Verfahren zurErwärmungvon Ferritmagnetmotorenfürniedrige温度

    公开(公告)号：EP2866334A2

    公开(公告)日：2015-04-29

    申请号：EP14190298.1

    申请日：2014-10-24

    申请人： General Electric Company

    发明人： Reddy, Patel Bhageerath ,  El-Refaie, Ayman Mohamed Fawzi ,  Huh, Kum-Kang

    IPC分类号： H02K15/12

    CPC分类号： H02P29/60 ,  H02K1/17 ,  H02K1/246 ,  H02K1/2766 ,  H02K1/30 ,  H02K11/25 ,  H02K15/12 ,  H02K15/125 ,  H02K21/12 ,  H02K21/26 ,  H02K21/44

    摘要： A system and method for heating ferrite permanent magnets in an electrical machine is disclosed. The permanent magnet machine (10) includes a stator assembly (12) and a rotor assembly (14), with a plurality of ferrite permanent magnets (32) disposed within the stator assembly or the rotor assembly to generate a magnetic field that interacts with a stator magnetic field to produce a torque. A controller (22) of the electrical machine is programmed to cause a primary field current to be applied to the stator windings to generate the stator magnetic field, so as to cause the rotor assembly to rotate relative to the stator assembly. The controller (22) is further programmed to cause a secondary current to be applied to the stator windings to selectively generate a secondary magnetic field, the secondary magnetic field inducing eddy currents in at least one of the stator assembly and the rotor assembly to heat the ferrite permanent magnets.

    摘要翻译： 公开了一种用于在电机中加热铁氧体永磁体的系统和方法。 永磁机（10）包括定子组件（12）和转子组件（14），多个铁氧体永久磁体（32）设置在定子组件或转子组件内，以产生与一个 定子磁场产生转矩。 电机的控制器（22）被编程为使得一次励磁电流施加到定子绕组以产生定子磁场，从而使转子组件相对于定子组件旋转。 控制器（22）还被编程为使得次级电流被施加到定子绕组以选择性地产生次级磁场，次级磁场在定子组件和转子组件中的至少一个中感应涡流以加热 铁氧体永磁体。

    Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof
    5.
    发明公开
    Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof 审中-公开
    永磁体电机与辐条和具有降低的扭矩波动和其制造方法

    公开(公告)号：EP2840692A2

    公开(公告)日：2015-02-25

    申请号：EP14179274.7

    申请日：2014-07-31

    申请人： General Electric Company

    发明人： Reddy, Patel Bhageerath ,  El-Refaie, Ayman Mohamed Fawzi ,  Huh, Kum-Kang ,  Alexander, James Pellegrino

    IPC分类号： H02K21/16 ,  H02K29/03

    CPC分类号： H02K1/272 ,  H02K1/30 ,  H02K15/03 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/06 ,  Y10T29/49012

    摘要： An internal permanent magnet machine 10 includes a rotor assembly 12 having a shaft 18 comprising a plurality of protrusions 22 extending radially outward from a main shaft body 24 and being formed circumferentially about the main shaft body 24 and along an axial length of the main shaft body 24. A plurality of stacks of laminations 30 are arranged circumferentially about the shaft to receive the plurality of protrusions 22 therein, with each stack of laminations 30 including a plurality of lamination groups arranged axially along a length of the shaft and with permanent magnets 34 being disposed between the stacks of laminations 30. Each of the laminations 30 includes a shaft protrusion cut formed therein to receive a respective shaft protrusion 22 and, for each of the stacks of laminations 30, the shaft protrusion cuts formed in the laminations of a respective lamination group are angularly offset from the shaft protrusion cuts formed in the laminations in an adjacent lamination group.

    摘要翻译： 内部永磁体电机10包括具有转子组件12的轴18包括凸部22的多个从主轴主体24径向向外延伸，并在轴向长度上的主轴主体被沿周向形成在主轴主体24和沿着 24.叠片30的堆叠的多个周向布置围绕轴以接收突出部22的多元性其中，与叠片30包括沿所述轴的长度，并与永久磁铁34被轴向布置层压组的多个各堆 叠片30的堆叠之间设置在每个铁心片30的在其中包括形成为接收一个respectivement轴突出部22，并且对于每个叠片30的堆叠中的轴突出部切割，轴突出部切口在层叠respectivement的叠片FORMED 组有角度地在邻近层压GROU在叠片形成在轴突出部切口偏移 页。