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    SYSTEM AND METHOD FOR CONTROLLING TORQUE RIPPLES IN SYNCHRONOUS MACHINES
    1.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING TORQUE RIPPLES IN SYNCHRONOUS MACHINES 有权
    同步机控制扭矩的系统与方法

    公开(公告)号：US20090085354A1

    公开(公告)日：2009-04-02

    申请号：US11863352

    申请日：2007-09-28

    申请人： Zhuohui Tan ,  Xiaoming Yuan ,  Changyong Wang ,  Ronghai Qu ,  Robert William Delmerico ,  Patrick Lee Jansen

    发明人： Zhuohui Tan ,  Xiaoming Yuan ,  Changyong Wang ,  Ronghai Qu ,  Robert William Delmerico ,  Patrick Lee Jansen

    IPC分类号： F03D9/00 ,  H02P6/10 ,  H02P9/00 ,  H02P9/14

    CPC分类号： H02P6/183 ,  H02P9/42 ,  H02P21/22 ,  H02P29/50 ,  H02P2101/15

    摘要： A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.

    摘要翻译： 一种用于控制永磁同步电机中的转矩脉动的系统，包括配置为耦合到永磁同步电机并接收转换器控制信号的电力转换器和耦合到功率转换器的系统控制器。 系统控制器包括配置用于提供基本电压命令的基波电流控制器，配置为使用谐波电流指令的谐波电流控制器，来自永磁电机的电流反馈信号以及与正序和负序调节器组合的基波电流命令以获得谐波 电压指令以及被配置用于增加基本电压指令和谐波电压指令以获得转换器控制信号的求和元件。

    ELECTRICAL MACHINE WITH IMPROVED WINDINGS
    2.
    发明申请
    ELECTRICAL MACHINE WITH IMPROVED WINDINGS 有权
    具有改进的绕线的电机

    公开(公告)号：US20070296299A1

    公开(公告)日：2007-12-27

    申请号：US11426756

    申请日：2006-06-27

    申请人： Ronghai Qu ,  Patrick Lee Jansen

    发明人： Ronghai Qu ,  Patrick Lee Jansen

    IPC分类号： H02K11/00 ,  H02K23/02 ,  H02K3/04 ,  H02K1/22 ,  H02K19/26 ,  H02K23/26 ,  H02K21/00 ,  H02K17/00

    CPC分类号： H02K3/28 ,  H02K21/12 ,  Y02E10/725

    摘要： This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coil provide transposition to reduce circulating current loss. The increased fill factor reduces further current losses. Such a stator is used in a dual rotor, permanent magnet machine, for example, in a compressor pump, wind turbine gearbox, wind turbine rotor.

    摘要翻译： 本文件还讨论了在绕组或线圈之间具有转置的定子。 线圈没有转置以增加定子槽的填充系数。 内部线圈和外部线圈之间的端部连接处的转置提供换位以减少循环电流损耗。 增加的填充因子减少了进一步的电流损耗。 这种定子用于例如压缩机泵，风力涡轮机齿轮箱，风力涡轮机转子中的双转子永磁机。

    Permanent magnet machine with windings having strand transposition
    5.
    发明授权
    Permanent magnet machine with windings having strand transposition 有权
    带绕组转子的永磁机

    公开(公告)号：US07521835B2

    公开(公告)日：2009-04-21

    申请号：US11426756

    申请日：2006-06-27

    申请人： Ronghai Qu ,  Patrick Lee Jansen

    发明人： Ronghai Qu ,  Patrick Lee Jansen

    IPC分类号： H02K1/00

    CPC分类号： H02K3/28 ,  H02K21/12 ,  Y02E10/725

    摘要： This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coil provide transposition to reduce circulating current loss. The increased fill factor reduces further current losses. Such a stator is used in a dual rotor, permanent magnet machine, for example, in a compressor pump, wind turbine gearbox, wind turbine rotor.

    摘要翻译： 本文件还讨论了在绕组或线圈之间具有转置的定子。 线圈没有转置以增加定子槽的填充系数。 内部线圈和外部线圈之间的端部连接处的转置提供换位以减少循环电流损耗。 增加的填充因子减少了进一步的电流损耗。 这种定子用于例如压缩机泵，风力涡轮机齿轮箱，风力涡轮机转子中的双转子永磁机。

    Method and apparatus for wind turbine air gap control
    6.
    发明授权
    Method and apparatus for wind turbine air gap control 有权
    风力发电机气隙控制的方法和装置

    公开(公告)号：US07180204B2

    公开(公告)日：2007-02-20

    申请号：US11031259

    申请日：2005-01-07

    申请人： James Jonathan Grant ,  Bharat Sampathkumaran Bagepalli ,  Patrick Lee Jansen ,  Paul Stephen DiMascio ,  Aniruddha Dattatraya Gadre ,  Ronghai Qu

    发明人： James Jonathan Grant ,  Bharat Sampathkumaran Bagepalli ,  Patrick Lee Jansen ,  Paul Stephen DiMascio ,  Aniruddha Dattatraya Gadre ,  Ronghai Qu

    IPC分类号： F03D9/00

    CPC分类号： F03D9/25 ,  F03D15/20 ,  F03D80/70 ,  F05B2220/7066 ,  H02K7/1838 ,  Y02E10/725

    摘要： Methods and apparatus for assembling a wind turbine generator are provided. The wind turbine generator includes a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis, a rotor rotatable about the generator longitudinal axis wherein the rotor includes a plurality of magnetic elements coupled to a radially outer periphery of the rotor such that an airgap is defined between the stator windings and the magnetic elements and the plurality of magnetic elements including a radially inner periphery having a first diameter. The wind turbine generator also includes a bearing including a first member in rotatable engagement with a radially inner second member, the first member including a radially outer periphery, a diameter of the radially outer periphery of the first member being substantially equal to the first diameter, the rotor coupled to the stator through the bearing such that a substantially uniform airgap is maintained.

    摘要翻译： 提供了组装风力涡轮发电机的方法和装置。 风力涡轮发电机包括一个铁芯和围绕发电机纵向轴线周向隔开的多个定子绕组，围绕发电机纵向轴线可转动的转子，其中转子包括耦合到转子的径向外周边的多个磁性元件， 在定子绕组和磁性元件之间限定气隙，并且多个磁性元件包括具有第一直径的径向内周边。 风力涡轮发电机还包括轴承，其包括与径向内部第二构件可旋转接合的第一构件，第一构件包括径向外周边，第一构件的径向外周的直径基本上等于第一直径， 所述转子通过所述轴承联接到所述定子，使得保持基本均匀的气隙。

    Electrical machine with improved stator flux pattern across a rotor that permits higher torque density
    8.
    发明授权
    Electrical machine with improved stator flux pattern across a rotor that permits higher torque density 有权
    电机具有改进的转子上的定子通量图，允许更高的转矩密度

    公开(公告)号：US08847464B2

    公开(公告)日：2014-09-30

    申请号：US12138182

    申请日：2008-06-12

    申请人： Ronghai Qu ,  Patrick Lee Jansen

    发明人： Ronghai Qu ,  Patrick Lee Jansen

    IPC分类号： H02K16/02 ,  H02K21/12 ,  H02K21/24 ,  H02K21/02 ,  H02K16/00 ,  H02K7/18

    CPC分类号： H02K1/276 ,  H02K1/145 ,  H02K1/2773 ,  H02K1/2793 ,  H02K7/1823 ,  H02K16/02 ,  H02K16/04 ,  H02K21/02 ,  H02K21/12 ,  H02K21/24

    摘要： An electrical machine is provided. The electrical machine includes a rotor comprising an inner rotor having a plurality of inner rotor poles and an outer rotor having a plurality of outer rotor poles. The electrical machine further comprises a stator configured to modulate a magnetic flux and to transmit torque to inner rotor and the outer rotor, the stator comprising a stator core interposed concentrically between the inner rotor and the outer rotor; a multiple of stator windings disposed in a plurality of stator slots, the stator windings configured to form a multiple of stator poles. The stator further comprises a plurality of stator teeth interposed between the plurality of stator slots, wherein an arithmetic sum or difference of twice number of stator teeth and a number of the stator poles equals a number of rotor poles.

    摘要翻译： 提供电机。 电机包括转子，该转子包括具有多个内转子极的内转子和具有多个外转子极的外转子。 该电机还包括定子，该定子构造成调制磁通量并将转矩传递到内转子和外转子，该定子包括同心地插在内转子和外转子之间的定子芯; 设置在多个定子槽中的定子绕组的倍数，所述定子绕组被配置为形成多个定子极。 定子还包括插入在多个定子槽之间的多个定子齿，其中定子齿数量和数量的定数极数的算术和或差等于多个转子极数。