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    Motor Fault Detector
    1.
    发明申请
    Motor Fault Detector 审中-公开
    电机故障检测器

    公开(公告)号：US20160315576A1

    公开(公告)日：2016-10-27

    申请号：US15200683

    申请日：2016-07-01

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Stephen John Fedigan ,  Sandun Shivantha Kuruppu ,  Paul LeRoy Brohlin

    IPC: H02P27/06 ,  G01R31/34

    CPC classification number: H02P27/06 ,  G01R27/16 ,  G01R31/343 ,  H02H7/0822 ,  H02P6/185 ,  H02P29/0241

    Abstract: A motor control circuit includes a processor configured to calculate a plurality of motor impedances from measurements of an excitation voltage on a power bus to a motor and measurements of a plurality of currents through the motor resulting from the excitation voltage, and the processor configured to calculate individual winding inductances in the motor, based on the measured motor impedances, and configured to determine whether there is an inter-turn winding fault based on the calculated individual winding inductances.

    Abstract translation: 电动机控制电路包括处理器，其被配置为从电力总线上的激励电压到电动机的测量值以及由激励电压产生的通过电动机的多个电流的测量来计算多个电动机阻抗，并且处理器被配置为计算 基于所测量的电动机阻抗，并且被配置为基于所计算的各个绕组电感来确定是否存在匝间绕组故障。

    Method and apparatus for multiphase inverter control
    4.
    发明授权
    Method and apparatus for multiphase inverter control 有权
    多相逆变器控制方法及装置

    公开(公告)号：US09225264B1

    公开(公告)日：2015-12-29

    申请号：US14468867

    申请日：2014-08-26

    Applicant: Texas Instruments Incorporated

    Inventor： Stephen John Fedigan ,  Paul LeRoy Brohlin

    IPC: H02M7/537 ,  H02M7/5395

    CPC classification number: H02M7/5395 ,  H02M7/53875 ,  H02M2001/0009

    Abstract: Systems, apparatus and methods are presented for multiphase inverter control in which PWM switching control signals are generated for operating inverter switching devices according to current feedback values, and a given inverter phase is identified in a given PWM switching cycle having the lowest low side duty cycle on-time. A phase current feedback value is selectively computed for the identified phase at least partially according to the low side current shunt voltage values corresponding to other output phases, and the phase current feedback values are updated with the computed phase current feedback value and the low side current shunt voltage values of the remaining output phases to provide feedback for closed loop PWM switching control.

    Abstract translation: 提出了用于多相逆变器控制的系统，装置和方法，其中根据电流反馈值为操作逆变器开关装置产生PWM开关控制信号，并且给定的反相器相位在具有最低低边占空比的给定PWM开关周期中被识别 准时。 根据与其他输出相位相对应的低侧电流分流电压值，至少部分地针对所识别的相位选择性地计算相电流反馈值，并且用计算出的相电流反馈值和低侧电流来更新相电流反馈值 分流剩余输出相的电压值，为闭环PWM开关控制提供反馈。

    MOTOR FAULT DETECTOR
    6.
    发明申请
    MOTOR FAULT DETECTOR 有权
    电机故障检测器

    公开(公告)号：US20150372631A1

    公开(公告)日：2015-12-24

    申请号：US14309735

    申请日：2014-06-19

    Applicant: Texas Instruments Incorporated

    Inventor： Stephen John Fedigan ,  Sandun Shivantha Kuruppu ,  Paul LeRoy Brohlin

    IPC: H02P23/00 ,  H02H7/08

    CPC classification number: H02P27/06 ,  G01R27/16 ,  G01R31/343 ,  H02H7/0822 ,  H02P6/185 ,  H02P29/0241

    Abstract: A motor control circuit includes a processor configured to calculate a plurality of motor impedances from measurements of an excitation voltage on a power bus to a motor and measurements of a plurality of currents through the motor resulting from the excitation voltage, and the processor configured to calculate individual winding inductances in the motor, based on the measured motor impedances, and configured to determine whether there is an inter-turn winding fault based on the calculated individual winding inductances.

    Abstract translation: 电动机控制电路包括处理器，其被配置为从电力总线上的激励电压到电动机的测量值以及由激励电压产生的通过电动机的多个电流的测量来计算多个电动机阻抗，并且处理器被配置为计算 基于所测量的电动机阻抗，并且被配置为基于所计算的各个绕组电感来确定是否存在匝间绕组故障。

    Motor fault detector
    10.
    发明授权
    Motor fault detector 有权
    电机故障检测器

    公开(公告)号：US09413163B2

    公开(公告)日：2016-08-09

    申请号：US14309735

    申请日：2014-06-19

    Applicant: Texas Instruments Incorporated

    Inventor： Stephen John Fedigan ,  Sandun Shivantha Kuruppu ,  Paul LeRoy Brohlin

    IPC: H02P27/06 ,  H02H7/08 ,  G01R31/34 ,  G01R27/16

    CPC classification number: H02P27/06 ,  G01R27/16 ,  G01R31/343 ,  H02H7/0822 ,  H02P6/185 ,  H02P29/0241

    Abstract: A motor control circuit includes a processor configured to calculate a plurality of motor impedances from measurements of an excitation voltage on a power bus to a motor and measurements of a plurality of currents through the motor resulting from the excitation voltage, and the processor configured to calculate individual winding inductances in the motor, based on the measured motor impedances, and configured to determine whether there is an inter-turn winding fault based on the calculated individual winding inductances.

    Abstract translation: 电动机控制电路包括处理器，其被配置为从电力总线上的激励电压到电动机的测量值以及由激励电压产生的通过电动机的多个电流的测量来计算多个电动机阻抗，并且处理器被配置为计算 基于所测量的电动机阻抗，并且被配置为基于所计算的各个绕组电感来确定是否存在匝间绕组故障。

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