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    Methods, systems and apparatus for detecting abnormal operation of an inverter sub-module
    3.
    发明授权
    Methods, systems and apparatus for detecting abnormal operation of an inverter sub-module 有权
    用于检测逆变器子模块异常运行的方法，系统和装置

    公开(公告)号：US07977963B2

    公开(公告)日：2011-07-12

    申请号：US12506760

    申请日：2009-07-21

    申请人： Bon Ho Bae ,  Leah Dunbar

    发明人： Bon Ho Bae ,  Leah Dunbar

    IPC分类号： G01R31/40

    CPC分类号： G01R31/42

    摘要： Methods and apparatus are provided for determining whether one or more inverter sub-modules of an inverter module is operating properly. Amplitude of each stator current signal is regularly measured. For each current signal, a positive counter counts a number of consecutive times the amplitude of that current signal is less than a positive current threshold, while a negative counter counts a number of consecutive times the amplitude of that current signal is greater than a negative current threshold. If the positive counter or the negative counter exceeds a maximum count, it is determined that an inverter sub-module is operating abnormally.

    摘要翻译： 提供了用于确定逆变器模块的一个或多个逆变器子模块是否正常工作的方法和装置。 每个定子电流信号的幅度被定期测量。 对于每个电流信号，正计数器对该电流信号的振幅小于正电流阈值的连续次数进行计数，而负计数器对该电流信号的幅度大于负电流的连续次数进行计数 阈。 如果正计数器或负计数器超过最大计数，则确定逆变器子模块异常运行。

    Induction motor control systems and methods
    4.
    发明授权
    Induction motor control systems and methods 有权
    感应电动机控制系统及方法

    公开(公告)号：US08294413B2

    公开(公告)日：2012-10-23

    申请号：US12652448

    申请日：2010-01-05

    申请人： Min Dai ,  Bon Ho Bae ,  Leah Dunbar

    发明人： Min Dai ,  Bon Ho Bae ,  Leah Dunbar

    IPC分类号： H02P23/00 ,  H02P27/00

    CPC分类号： H02P21/06 ,  H02P21/141 ,  H02P2207/01

    摘要： A control system is provided for an inverter assembly associated with an induction motor. The system includes a current determination module configured to generate q- and d-axis current commands based on a torque command. The current determination module is further configured to generate the q-axis current command based on an observed flux linkage and a flux linkage command. The system further includes a motor current control module coupled to the current determination module and configured to generate q- and d-axis voltage commands based on the q- and d-axis current commands generated by the current determination module and a PWM modulator coupled to the motor current control module configured to generate duty cycle signals for operating the inverter assembly based on the q- and d-axis voltage commands generated by the motor current control module.

    摘要翻译： 为与感应电动机相关联的逆变器组件提供控制系统。 该系统包括电流确定模块，其配置为基于转矩指令产生q轴和d轴电流指令。 当前确定模块还被配置为基于观察到的磁链和磁链指令来生成q轴电流命令。 该系统还包括电动机电流控制模块，该电动机电流控制模块耦合到电流确定模块并被配置为基于由电流确定模块产生的q轴和d轴电流指令产生q轴和d轴电压指令，以及PWM调制器 电动机电流控制模块被配置为基于由电动机电流控制模块产生的q轴和d轴电压指令产生用于操作逆变器组件的占空比信号。

    Method and system for sensorless control of an electric motor
    7.
    发明授权
    Method and system for sensorless control of an electric motor 有权
    电动机无传感器控制的方法和系统

    公开(公告)号：US09106177B2

    公开(公告)日：2015-08-11

    申请号：US13344241

    申请日：2012-01-05

    申请人： Yo Chan Son ,  Leah Dunbar ,  Silva Hiti

    发明人： Yo Chan Son ,  Leah Dunbar ,  Silva Hiti

    IPC分类号： H02P21/00 ,  H02P21/14 ,  H02P21/13 ,  H02P27/06

    CPC分类号： H02P21/14 ,  H02P21/13 ,  H02P27/06

    摘要： Methods and systems for controlling an electric motor are provided. An estimated rotor flux angular position error is generated based on estimated back electromotive force (EMF) values, and based on the estimated rotor flux angular position error, an estimated rotor flux angular position, an estimated electrical synchronous frequency and/or an estimated rotor frequency can be generated.

    摘要翻译： 提供了用于控制电动机的方法和系统。 基于估计的反向电动势（EMF）值产生估计的转子磁通角位置误差，并且基于估计的转子磁通角位置误差，估计的转子磁通角位置，估计的电同步频率和/或估计的转子频率 可以生成。