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29 条记录 (耗时 0.03 秒)

    Methods and systems for induction motor control
    21.
    发明授权
    Methods and systems for induction motor control 有权
    感应电动机控制的方法和系统

    公开(公告)号：US08339082B2

    公开(公告)日：2012-12-25

    申请号：US12784873

    申请日：2010-05-21

    申请人： Mengwei Campbell ,  Bon Ho Bae ,  Milun Perisic ,  Yo Chan Son

    发明人： Mengwei Campbell ,  Bon Ho Bae ,  Milun Perisic ,  Yo Chan Son

    IPC分类号： H02P7/00

    CPC分类号： H02P21/16

    摘要： A method is provided for controlling an induction motor having a rotor. The method includes receiving a torque command; comparing the torque command to a threshold torque value; generating, with a first estimation module, a first estimated rotor resistance when the torque command is less than or equal to the threshold torque value; generating, with a second estimation module, a second estimated rotor resistance when the torque command is greater than the threshold torque value; and generating control signals for the induction motor based on the first estimated rotor resistance or the second estimated rotor resistance.

    摘要翻译： 提供一种用于控制具有转子的感应电动机的方法。 该方法包括：接收扭矩指令; 将所述转矩指令与阈值转矩值进行比较; 当所述转矩指令小于或等于所述阈值转矩值时，利用第一估计模块产生第一估计转子电阻; 当转矩指令大于阈值转矩值时，利用第二估计模块产生第二估计转子电阻; 以及基于所述第一估计转子电阻或所述第二估计转子电阻产生所述感应电动机的控制信号。

    Position error correction for electric motors
    23.
    发明授权
    Position error correction for electric motors 有权

    公开(公告)号：US10895866B1

    公开(公告)日：2021-01-19

    申请号：US16290007

    申请日：2019-03-01

    申请人： Bon Ho Bae ,  Jihoon Jang

    发明人： Bon Ho Bae ,  Jihoon Jang

    IPC分类号： G05B19/406 ,  G05B19/4155 ,  H02K24/00

    摘要： Position and speed correction are applied to observed values from a position sensor in order to operate an electric motor. Observed position values and observed speed values are obtained from the position sensor for time points during a sampling window, ideal position values and ideal speed values are determined for each of the time points, and position and speed error values are determined based on the observed and ideal values. Stored position information is updated using the position error values and the speed error values. The electric motor is operated using corrected position values and corrected speed values that are determined from the observed position values, the observed speed values, and the stored position information.

    Method and circuit for processing a resolver fault
    24.
    发明授权
    Method and circuit for processing a resolver fault 有权
    用于处理分解器故障的方法和电路

    公开(公告)号：US08198841B2

    公开(公告)日：2012-06-12

    申请号：US12543708

    申请日：2009-08-19

    申请人： Wei D. Wang ,  Bon Ho Bae ,  Stephen T. West ,  Rick H. Schroeder

    发明人： Wei D. Wang ,  Bon Ho Bae ,  Stephen T. West ,  Rick H. Schroeder

    IPC分类号： H02P6/16

    CPC分类号： G01D5/24476

    摘要： A method of processing a resolver fault in a motor generator unit (MGU) includes receiving a position signal from a resolver describing a measured angular position of a rotor of the MGU, determining the presence of the resolver fault using the position signal, and calculating or extrapolating an estimated rotor position when the resolver fault is determined. A predetermined resolver fault state may be determined using a measured duration of the resolver fault, and the MGU may be controlled using the estimated rotor position for at least a portion of the duration of the resolver fault. A motor control circuit is operable for processing the resolver fault using the above method, and may automatically vary a torque output or a pulse-width modulation (PWM) of the MGU depending on the duration of the resolver fault.

    摘要翻译： 一种处理电动发电机单元（MGU）中的解算器故障的方法包括从解析器接收描述MGU的转子的测量角位置的位置信号，使用位置信号确定解析器故障的存在，以及计算或 当确定旋转变压器故障时，外推估计的转子位置。 可以使用解析器故障的测量持续时间来确定预定的解算器故障状态，并且可以使用估计的转子位置来控制解调器故障持续时间的至少一部分的MGU。 电动机控制电路可操作以使用上述方法处理旋转变压器故障，并且可以根据解算器故障的持续时间自动地改变MGU的转矩输出或脉冲宽度调制（PWM）。

    System and method for detecting loss of isolation while an AC motor is operating
    26.
    发明授权
    System and method for detecting loss of isolation while an AC motor is operating 有权
    交流电机工作时检测隔离损失的系统和方法

    公开(公告)号：US08164298B2

    公开(公告)日：2012-04-24

    申请号：US12412053

    申请日：2009-03-26

    申请人： Mohammad N. Anwar ,  Bryan M. Ludwig ,  S.M. N. Hasan ,  Sean E. Gleason ,  Bon Ho Bae

    发明人： Mohammad N. Anwar ,  Bryan M. Ludwig ,  S.M. N. Hasan ,  Sean E. Gleason ,  Bon Ho Bae

    IPC分类号： H02P3/18

    CPC分类号： G01R31/343 ,  G01R31/025 ,  H02P29/00

    摘要： Methods and systems are provided for detecting loss of isolation of a motor, connections, or phase cables while an AC motor is operating. The system includes a power supply that is substantially isolated from the ground or chassis having a power supply voltage, and a power inverter electrically coupled to the power supply. The power inverter is configured to provide AC current from the power supply in an AC phase at an AC terminal, with the phase having current at a fundamental frequency that controls the motor speed. An electric motor is electrically coupled to the AC terminal of the power inverter and has a chassis that is substantially electrically isolated from the AC terminal of the power inverter under normal operating conditions. A processor is configured to control the AC current provided by the power inverter. The processor is configured to receive a first voltage signal related to current flowing through a motor chassis. The first voltage signal includes a first component related to the fundamental frequency of the phases, and a second component related to the power supply voltage. The processor is further configured to filter the first voltage signal to attenuate the second component, to measure an amplitude of the first component, and to determine if an AC loss of isolation condition exists by comparing the amplitude of the first component to a fault value.

    摘要翻译： 提供了用于在AC电动机运行时检测电动机，连接或相位电缆的隔离损失的方法和系统。 该系统包括与具有电源电压的地面或底盘基本上隔离的电源，以及电耦合到电源的功率逆变器。 电力逆变器被配置为在AC端子处的AC相中提供来自电源的AC电流，其中相位具有控制电动机速度的基频的电流。 电动机电耦合到电力逆变器的AC端子，并且具有在正常操作条件下与电力逆变器的AC端子基本上电隔离的底盘。 处理器被配置为控制由电力逆变器提供的AC电流。 处理器被配置为接收与流过马达机箱的电流相关的第一电压信号。 第一电压信号包括与相的基频相关的第一分量和与电源电压有关的第二分量。 处理器还被配置为对第一电压信号进行滤波以衰减第二分量，以测量第一分量的振幅，并且通过将第一分量的幅度与故障值进行比较来确定是否存在隔离条件的AC损失。

    Permanent magnet motor start-up
    27.
    发明授权
    Permanent magnet motor start-up 有权
    永磁电机启动

    公开(公告)号：US07932691B2

    公开(公告)日：2011-04-26

    申请号：US12107132

    申请日：2008-04-22

    申请人： Yo Chan Son ,  Bon Ho Bae ,  Michael Milani

    发明人： Yo Chan Son ,  Bon Ho Bae ,  Michael Milani

    IPC分类号： H02P1/24

    CPC分类号： H02P23/04 ,  H02P1/46 ,  H02P6/10 ,  H02P21/26 ,  H02P21/34

    摘要： Methods and apparatus are provided for startup of a permanent magnet alternating current (AC) motor. The method comprises the steps of detecting startup of the permanent magnet AC motor; detecting a mechanical oscillation of the permanent magnet AC motor when startup of the permanent magnet AC motor is detected; and, in response to detection of the mechanical oscillation of the permanent magnet AC motor when startup is detected, suppressing the mechanical oscillation of the permanent magnet AC motor.

    摘要翻译： 提供用于启动永磁交流（AC）电动机的方法和装置。 该方法包括以下步骤：检测永磁体AC电动机的启动; 在检测到永久磁铁AC电动机的启动时检测永久磁铁AC电动机的机械振动; 并且响应于检测到启动时永久磁铁AC电动机的机械振动的检测，抑制了永久磁铁AC电动机的机械振动。

    SYSTEM AND METHOD FOR DETECTING LOSS OF ISOLATION WHILE AN AC MOTOR IS OPERATING
    29.
    发明申请
    SYSTEM AND METHOD FOR DETECTING LOSS OF ISOLATION WHILE AN AC MOTOR IS OPERATING 有权
    用于检测交流电机运行时的隔离损失的系统和方法

    公开(公告)号：US20100244760A1

    公开(公告)日：2010-09-30

    申请号：US12412053

    申请日：2009-03-26

    申请人： Mohammad N. Anwar ,  Bryan M. Ludwig ,  S.M. N. Hasan ,  Sean E. Gleason ,  Bon Ho Bae

    发明人： Mohammad N. Anwar ,  Bryan M. Ludwig ,  S.M. N. Hasan ,  Sean E. Gleason ,  Bon Ho Bae

    IPC分类号： H02P29/02 ,  H02H9/08 ,  G01R31/34

    CPC分类号： G01R31/343 ,  G01R31/025 ,  H02P29/00

    摘要： Methods and systems are provided for detecting loss of isolation of a motor, connections, or phase cables while an AC motor is operating. The system includes a power supply that is substantially isolated from the ground or chassis having a power supply voltage, and a power inverter electrically coupled to the power supply. The power inverter is configured to provide AC current from the power supply in an AC phase at an AC terminal, with the phase having current at a fundamental frequency that controls the motor speed. An electric motor is electrically coupled to the AC terminal of the power inverter and has a chassis that is substantially electrically isolated from the AC terminal of the power inverter under normal operating conditions. A processor is configured to control the AC current provided by the power inverter. The processor is configured to receive a first voltage signal related to current flowing through a motor chassis. The first voltage signal includes a first component related to the fundamental frequency of the phases, and a second component related to the power supply voltage. The processor is further configured to filter the first voltage signal to attenuate the second component, to measure an amplitude of the first component, and to determine if an AC loss of isolation condition exists by comparing the amplitude of the first component to a fault value.

    摘要翻译： 提供了用于在AC电动机运行时检测电动机，连接或相位电缆的隔离损失的方法和系统。 该系统包括与具有电源电压的地面或底盘基本上隔离的电源，以及电耦合到电源的功率逆变器。 电力逆变器被配置为在AC端子处的AC相中提供来自电源的AC电流，其中相位具有控制电动机速度的基频的电流。 电动机电耦合到电力逆变器的AC端子，并且具有在正常操作条件下与电力逆变器的AC端子基本上电隔离的底盘。 处理器被配置为控制由电力逆变器提供的AC电流。 处理器被配置为接收与流过马达机箱的电流相关的第一电压信号。 第一电压信号包括与相的基频相关的第一分量和与电源电压有关的第二分量。 处理器还被配置为对第一电压信号进行滤波以衰减第二分量，以测量第一分量的振幅，并且通过将第一分量的幅度与故障值进行比较来确定是否存在隔离条件的AC损失。