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    Method and apparatus for communication in a motor drive application
    4.
    发明授权
    Method and apparatus for communication in a motor drive application 有权

    公开(公告)号：US10375216B2

    公开(公告)日：2019-08-06

    申请号：US15719925

    申请日：2017-09-29

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Dayin Xu ,  Zhenhuan Yuan ,  Robert H. Schmidt ,  Guolin Zhang ,  Scott D. Braun ,  Fuhua Ding

    IPC: H04L29/06 ,  H04L29/08

    Abstract: The subject matter disclosed herein describes a switch embedded in a motor controller and a network protocol executing on the switch to provide communication between devices connected to the motor controller in a motor drive application. The embedded switch is configured to communicate via separate ports with an external controller, a network interface for the motor controller, additional motor controllers, and with the motor or other devices mounted on the motor. The network protocol includes a first tier for data that requires deterministic delivery at a high data rate, a second tier for data that requires a high delivery rate but is also tolerant of some variation in delivery time, and a third tier for data that may be delivered at a slower data rate. The embedded switch receives data at any port, identifies the communication tier to which the data belongs, and delivers it to another port accordingly.

    CONVERTER LIFETIME IMPROVEMENT METHOD FOR DOUBLY FED INDUCTION GENERATOR
    6.
    发明申请
    CONVERTER LIFETIME IMPROVEMENT METHOD FOR DOUBLY FED INDUCTION GENERATOR 审中-公开
    双极电感诱导发生器的转换器寿命改进方法

    公开(公告)号：US20140253055A1

    公开(公告)日：2014-09-11

    申请号：US14285497

    申请日：2014-05-22

    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    Inventor： Lixiang Wei ,  Russel J. Kerkman ,  Richard A. Lukaszewski ,  Haihui Lu ,  Zhenhuan Yuan

    IPC: H02M7/537 ,  H02P9/00

    CPC classification number: H02M7/537 ,  G01B3/52 ,  G05F1/67 ,  H02M1/32 ,  H02P9/007

    Abstract: The present techniques include methods and systems for operating converter to maintain a lifespan of the converter. In some embodiments, the operating frequency of the converter may be increased such that stress may be reduced on the bond wires of the converter. More specifically, embodiments involve calculating the aging parameters for certain operating conditions of the converter operating in a maximum power point tracking (MPPT) mode and determining whether the MPPT operation results in aging the converter to a point which reduces the converter lifespan below a desired lifespan. If the MPPT operation reduces the converter lifespan below the desired lifespan, the frequency of the converter may be increased such that the converter may be controlled to operate at a percentage of MPPT. Thus, in some embodiments, power output may be optimized with respect to maintaining a desired lifespan of the converter.

    Abstract translation: 本技术包括用于操作转换器以保持转换器寿命的方法和系统。 在一些实施例中，可以增加转换器的工作频率，使得可以在转换器的接合线上减小应力。 更具体地，实施例涉及为以最大功率点跟踪（MPPT）模式操作的转换器的某些操作条件计算老化参数，并且确定MPPT操作是否导致转换器老化到将转换器寿命降低到期望寿命以下的点 。 如果MPPT操作将转换器寿命降低到期望的寿命以下，则可以增加转换器的频率，使得可以将转换器控制为以MPPT的百分比进行操作。 因此，在一些实施例中，可以相对于维持转换器的期望寿命来优化功率输出。

    Method and apparatus for communication in a motor drive application
    7.
    发明授权
    Method and apparatus for communication in a motor drive application 有权

    公开(公告)号：US10938967B2

    公开(公告)日：2021-03-02

    申请号：US16522875

    申请日：2019-07-26

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Dayin Xu ,  Zhenhuan Yuan ,  Robert H. Schmidt ,  Guolin Zhang ,  Scott D. Braun ,  Fuhua Ding

    IPC: H04L29/06 ,  H04L29/08 ,  H04L12/46 ,  H04L12/725 ,  H04L12/931 ,  G05B19/418

    Abstract: The subject matter disclosed herein describes a switch embedded in a motor controller and a network protocol executing on the switch to provide communication between devices connected to the motor controller in a motor drive application. The embedded switch is configured to communicate via separate ports with an external controller, a network interface for the motor controller, additional motor controllers, and with the motor or other devices mounted on the motor. The network protocol includes a first tier for data that requires deterministic delivery at a high data rate, a second tier for data that requires a high delivery rate but is also tolerant of some variation in delivery time, and a third tier for data that may be delivered at a slower data rate. The embedded switch receives data at any port, identifies the communication tier to which the data belongs, and delivers it to another port accordingly.

    System and Method for Detection of Motor Vibration
    8.
    发明申请
    System and Method for Detection of Motor Vibration 有权
    电机振动检测系统及方法

    公开(公告)号：US20150288257A1

    公开(公告)日：2015-10-08

    申请号：US14243353

    申请日：2014-04-02

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Mark Cooper ,  Kelly J. Bronk ,  Wei Qian ,  Zhenhuan Yuan ,  Shankernarayan Ramanarayanan ,  Manas Sawant ,  Shun Feng ,  Robert H. Schmidt

    IPC: H02K11/00 ,  H02P21/14 ,  G01M1/14

    CPC classification number: H02K11/20 ,  G01M1/14 ,  H02K5/24 ,  H02P21/14

    Abstract: An improved system for monitoring vibration of an electric machine is disclosed. According to one embodiment, sensors are positioned in a plane orthogonal to the motor shaft and each sensor detects vibration along at least one axis of the motor. The sensors are oriented such that the polarity of each sensor is reversed. The pairs of sensors may be used to isolate specific vibrations within the motor. According to another embodiment, a sensor may be mounted directly to the motor shaft. The sensor on the motor shaft directly detects vibrations along the motor shaft. Optionally, a second sensor may be mounted to a fixed location within the motor housing, and the combination of the sensor on the motor shaft and the sensor at a fixed location may be used to isolate specific vibrations within the motor. A motor controller may adjust operation of the motor to reduce the isolated vibration.

    Abstract translation: 公开了一种用于监测电机振动的改进系统。 根据一个实施例，传感器定位在与电动机轴正交的平面中，并且每个传感器沿着电动机的至少一个轴检测振动。 传感器被定向成使得每个传感器的极性相反。 传感器对可用于隔离电动机内的特定振动。 根据另一个实施例，传感器可以直接安装到电动机轴上。 电机轴上的传感器直接检测电机轴的振动。 可选地，第二传感器可以安装到电动机壳体内的固定位置，并且电动机轴上的传感器和固定位置处的传感器的组合可用于隔离电动机内的特定振动。 电机控制器可以调节电机的运行，以减少隔离振动。

    PARAMETER ESTIMATION SYSTEM AND METHOD FOR AN INDUCTION MOTOR
    9.
    发明申请
    PARAMETER ESTIMATION SYSTEM AND METHOD FOR AN INDUCTION MOTOR 审中-公开
    用于感应电动机的参数估计系统和方法

    公开(公告)号：US20140285230A1

    公开(公告)日：2014-09-25

    申请号：US14295123

    申请日：2014-06-03

    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    Inventor： David M. Messersmith ,  Douglas J. Bader ,  Haihui Lu ,  Thomas A. Nondahl ,  Zhenhuan Yuan

    IPC: G01R31/34 ,  G01R27/26 ,  G01R27/08

    CPC classification number: G01R31/343 ,  G01R27/08 ,  G01R27/2611 ,  H02P23/14

    Abstract: A method of estimating stator resistance of an induction motor is provided. The method includes applying voltage pulses through two phase paths of the motor for a plurality of electrical cycles to inject current in the motor, wherein the voltage pulses are applied until rotor flux of the motor is substantially stabilized and measuring stator voltage and stator current in response to the applied voltage pulses for each of the plurality of electrical cycles. The method also includes calculating the stator resistance based upon the measured stator voltages and the stator currents.

    Abstract translation: 提供了一种估计感应电动机的定子电阻的方法。 该方法包括通过电动机的两个相位路径施加电压脉冲多个电循环以在电动机中注入电流，其中施加电压脉冲直到电动机的转子磁通基本稳定并且响应于测量定子电压和定子电流 对于多个电循环中的每一个的施加的电压脉冲。 该方法还包括基于所测量的定子电压和定子电流来计算定子电阻。

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