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    ELECTRICAL MACHINE ROTORS
    2.
    发明申请
    ELECTRICAL MACHINE ROTORS 审中-公开
    电机转子

    公开(公告)号：US20150280523A1

    公开(公告)日：2015-10-01

    申请号：US14432918

    申请日：2013-09-13

    Applicant: Darren D Tremelling ,  Yujing Liu ,  ABB RESEARCH LTD.

    Inventor： Darren D. Tremelling ,  Yujing Liu

    IPC: H02K9/19 ,  H02K15/03 ,  H02K7/09

    CPC classification number: H02K9/19 ,  H02K1/278 ,  H02K1/2786 ,  H02K1/32 ,  H02K7/09 ,  H02K15/03 ,  Y10T29/49012

    Abstract: Rotors for electrical machines and methods of fabricating the same are disclosed. Electrical machine rotors may include a hollow non-magnetic shaft, an active region, and a plurality of coolant passages extending within the active region. The hollow non-magnetic shaft may extend along an axis and have an exterior surface that defines a shaft space extending along the axis. At least a portion of the active region may be disposed within the shaft space.

    Abstract translation: 公开了用于电机的转子及其制造方法。 电机转子可以包括中空非磁性轴，有源区和在有源区内延伸的多个冷却剂通道。 中空非磁性轴可以沿轴线延伸并且具有限定沿轴线延伸的轴空间的外表面。 有源区域的至少一部分可以设置在轴空间内。

    Modular Rotor For Synchronous Reluctance Machine
    3.
    发明申请
    Modular Rotor For Synchronous Reluctance Machine 审中-公开
    同步磁阻电机模块转子

    公开(公告)号：US20120146448A1

    公开(公告)日：2012-06-14

    申请号：US13396244

    申请日：2012-02-14

    Applicant: Reza Rajabi Moghaddam ,  Yujing Liu ,  Cedric Monnay ,  Pierluigi Tenca

    Inventor： Reza Rajabi Moghaddam ,  Yujing Liu ,  Cedric Monnay ,  Pierluigi Tenca

    IPC: H02K1/30

    CPC classification number: H02K1/246

    Abstract: A rotor for a synchronous reluctance machine includes a plurality of rotor modules disposed in an axial sequence along a common axis. Each rotor module includes a plurality of poles disposed in adjacent sectors about the common axis, each pole including a plurality of magnetic segments spaced apart from one another in radial direction, a support plate, provided on an axial side of the plurality of poles, and fastening means for fastening the plurality of poles to the support plate. The fastening means, preferably a plurality of axially arranged bolts or an adhesive, bonds the plurality of poles to the support plate.

    Abstract translation: 用于同步磁阻电机的转子包括沿公共轴线轴向排列的多个转子模块。 每个转子模块包括围绕公共轴设置在相邻扇区中的多个极，每个极包括在径向上彼此间隔开的多个磁段，设置在多个极的轴向侧上的支撑板，以及 用于将所述多个极紧固到所述支撑板的紧固装置。 紧固装置，优选多个轴向布置的螺栓或粘合剂，将多个极接合到支撑板。

    System And Method For Controlling A Synchronous Motor
    5.
    发明申请
    System And Method For Controlling A Synchronous Motor 有权
    用于控制同步电机的系统和方法

    公开(公告)号：US20140232317A1

    公开(公告)日：2014-08-21

    申请号：US14259934

    申请日：2014-04-23

    Applicant: Yujing Liu ,  Hongyang Zhang ,  Djordje Savinovic

    Inventor： Yujing Liu ,  Hongyang Zhang ,  Djordje Savinovic

    IPC: H02P1/50

    CPC classification number: H02P1/50 ,  H02P25/026 ,  H02P25/03

    Abstract: A synchronous electrical motor includes a rotor with a DC field winding. An exciter is configured to energize the DC field winding by generating a DC current in a first direction across the DC field winding when activated. A control system is configured to control a current flow across the DC field winding, the control system including a field discharge resistor and a by-passing circuitry. The by-passing circuitry is configured to implement a first by-passing to electrically by-pass the field discharge resistor during a current flow in the first direction across the DC field winding, and to implement a second by-passing to electrically by-pass the field discharge resistor during a current flow in a second direction across the DC field winding. The control system is able to direct all the DC current generated by the exciter to flow across the DC field winding.

    Abstract translation: 同步电动机包括具有直流励磁绕组的转子。 激励器被配置为通过在激活时在DC场绕组上沿着第一方向产生DC电流来激励DC场绕组。 控制系统被配置为控制跨过DC场绕组的电流，所述控制系统包括场放电电阻器和旁路电路。 旁路电路被配置为在跨过DC场绕组的第一方向上的电流期间实现第一旁路以电旁路励磁放电电阻器，并且实现第二旁路到电旁路 在跨过DC场绕组的第二方向上的电流期间的场放电电阻器。 控制系统能够引导由励磁机产生的所有直流电流流过直流励磁绕组。

    Rotating Electrical Machine And Corresponding Method
    6.
    发明申请
    Rotating Electrical Machine And Corresponding Method 审中-公开
    旋转电机及相应方法

    公开(公告)号：US20130241368A1

    公开(公告)日：2013-09-19

    申请号：US13892715

    申请日：2013-05-13

    Applicant: Yujing Liu ,  Pierluigi Tenca

    Inventor： Yujing Liu ,  Pierluigi Tenca

    IPC: H02K11/00

    CPC classification number: H02K11/33 ,  H02P6/085

    Abstract: A rotating electrical machine including a stator or rotor including a plurality of serially connected switching cells. Each switching cell includes a winding subsection and a current reverser arranged to controllably alter a current direction through the winding subsection, and each current reverser includes a capacitor arranged to form a resonant circuit in cooperation with the winding subsection.

    Abstract translation: 一种包括定子或转子的旋转电机，包括多个串联连接的开关单元。 每个开关单元包括绕组子部分和电流反向器，其布置成可控地改变通过绕组子部分的电流方向，并且每个电流反向器包括布置成与绕组子部分协作形成谐振电路的电容器。

    Device and a method for heat treatment of an object in a susceptor
    7.
    发明授权
    Device and a method for heat treatment of an object in a susceptor 有权
    用于对基座中的物体进行热处理的装置和方法

    公开(公告)号：US06481368B1

    公开(公告)日：2002-11-19

    申请号：US09431047

    申请日：1999-11-01

    Applicant: Peter Löfgren ,  Yujing Liu

    Inventor： Peter Löfgren ,  Yujing Liu

    IPC: C23C16507

    CPC classification number: F27D99/0006 ,  C23C16/46 ,  C30B25/10 ,  C30B31/12 ,  F27D2099/0016 ,  F27D2099/002

    Abstract: A device for heat treatment of an object comprises a susceptor (9) having walls (10) surrounding an inner room (11) adapted to receive the object and Rf-field radiating means (12, 15) arranged outside the walls and adapted to heat the walls and by that said object. Said means comprises at least two coils (12, 15) with at least one turn each following upon each other in a longitudinal direction of the susceptor and a current source (17) arranged to cause a current to flow in each coil in a direction of rotation around the susceptor walls opposite to that of the other coil for heating said walls.

    Abstract translation: 用于对物体进行热处理的装置包括：基座（9），其具有围绕适于接收物体的内部空间（11）的壁（10）和布置在壁外部并适于加热的Rf场辐射装置（12,15） 墙壁和所述物体。 所述装置包括至少两个具有至少一个匝的线圈（12,15），每个线圈在基座的纵向方向上彼此相邻;以及电流源（17），其布置成使电流在每个线圈中沿着 围绕与另一个线圈相反的基座壁旋转以加热所述壁。

    System and method for controlling a synchronous motor
    8.
    发明授权
    System and method for controlling a synchronous motor 有权
    用于控制同步电机的系统和方法

    公开(公告)号：US09018888B2

    公开(公告)日：2015-04-28

    申请号：US14259934

    申请日：2014-04-23

    Applicant: Yujing Liu ,  Hongyang Zhang ,  Djordje Savinovic

    Inventor： Yujing Liu ,  Hongyang Zhang ,  Djordje Savinovic

    IPC: H02P1/50 ,  H02P25/02

    CPC classification number: H02P1/50 ,  H02P25/026 ,  H02P25/03

    Abstract: A synchronous electrical motor includes a rotor with a DC field winding. An exciter is configured to energize the DC field winding by generating a DC current in a first direction across the DC field winding when activated. A control system is configured to control a current flow across the DC field winding, the control system including a field discharge resistor and a by-passing circuitry. The by-passing circuitry is configured to implement a first by-passing to electrically by-pass the field discharge resistor during a current flow in the first direction across the DC field winding, and to implement a second by-passing to electrically by-pass the field discharge resistor during a current flow in a second direction across the DC field winding. The control system is able to direct all the DC current generated by the exciter to flow across the DC field winding.

    Abstract translation: 同步电动机包括具有直流励磁绕组的转子。 激励器被配置为通过在激活时在DC场绕组上沿着第一方向产生DC电流来激励DC场绕组。 控制系统被配置为控制跨过DC场绕组的电流，所述控制系统包括场放电电阻器和旁路电路。 旁路电路被配置为在跨过DC场绕组的第一方向上的电流期间实现第一旁路以电旁路励磁放电电阻器，并且实现第二旁路到电旁路 在跨过DC场绕组的第二方向上的电流期间的场放电电阻器。 控制系统能够引导由励磁机产生的所有直流电流流过直流励磁绕组。

    Electrical machine rotors
    10.
    发明授权
    Electrical machine rotors 有权

    公开(公告)号：US10594190B2

    公开(公告)日：2020-03-17

    申请号：US16030173

    申请日：2018-07-09

    Applicant: ABB Research, Ltd.

    Inventor： Darren D. Tremelling ,  Yujing Liu

    IPC: H02K9/00 ,  H02K9/19 ,  H02K1/32 ,  H02K1/27 ,  H02K7/09 ,  H02K15/03

    Abstract: Rotors for electrical machines and methods of fabricating the same are disclosed. Electrical machine rotors may include a hollow non-magnetic shaft, an active region, and a plurality of coolant passages extending within the active region. The hollow non-magnetic shaft may extend along an axis and have an exterior surface that defines a shaft space extending along the axis. At least a portion of the active region may be disposed within the shaft space.

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