MOTOR PHASE WINDING FAULT DETECTION METHOD AND APPARATUS
    2.
    发明申请
    MOTOR PHASE WINDING FAULT DETECTION METHOD AND APPARATUS 有权
    电机相绕组故障检测方法及装置

    公开(公告)号:US20110187304A1

    公开(公告)日:2011-08-04

    申请号:US12698221

    申请日:2010-02-02

    IPC分类号: G01R31/06

    CPC分类号: G01R31/343

    摘要: A method of detecting a phase winding fault in a multi-phase electric machine is executable via a motor controller, and includes measuring feedback signals of the machine, including each phase current, and generating reference phase voltages for each phase. The method includes calculating a predetermined voltage value using the feedback signals and reference phase voltages, and comparing the voltage value to a corresponding threshold to determine the fault. A control action is executed when the voltage value exceeds the corresponding threshold. The voltage value is one or more of: a ratio of a normalized negative sequence voltage to a modulation index, an RMS voltage for each phase, and total harmonic distortion of each phase current. An apparatus detects the fault, and includes a motor controller and an algorithm as set forth above. The apparatus may include a voltage inverter for generating a multi-phase alternating current output for powering the machine.

    摘要翻译: 检测多相电机中的相绕组故障的方法可通过马达控制器执行,并且包括测量机器的反馈信号,包括每个相电流,并产生每相的参考相电压。 该方法包括使用反馈信号和参考相电压来计算预定电压值,并将电压值与相应的阈值进行比较以确定故障。 当电压值超过相应的阈值时,执行控制动作。 电压值是以下中的一个或多个:归一化负序电压与调制指数的比率,每相的RMS电压以及每个相电流的总谐波失真。 一种装置检测故障,并包括如上所述的马达控制器和算法。 该装置可以包括电压逆变器,用于产生用于为机器供电的多相交流输出。

    Motor phase winding fault detection method and apparatus
    3.
    发明授权
    Motor phase winding fault detection method and apparatus 有权
    电机相绕组故障检测方法及装置

    公开(公告)号:US08362732B2

    公开(公告)日:2013-01-29

    申请号:US12698221

    申请日:2010-02-02

    IPC分类号: G01R31/02

    CPC分类号: G01R31/343

    摘要: A method of detecting a phase winding fault in a multi-phase electric machine is executable via a motor controller, and includes measuring feedback signals of the machine, including each phase current, and generating reference phase voltages for each phase. The method includes calculating a predetermined voltage value using the feedback signals and reference phase voltages, and comparing the voltage value to a corresponding threshold to determine the fault. A control action is executed when the voltage value exceeds the corresponding threshold. The voltage value is one or more of: a ratio of a normalized negative sequence voltage to a modulation index, an RMS voltage for each phase, and total harmonic distortion of each phase current. An apparatus detects the fault, and includes a motor controller and an algorithm as set forth above. The apparatus may include a voltage inverter for generating a multi-phase alternating current output for powering the machine.

    摘要翻译: 检测多相电机中的相绕组故障的方法可通过马达控制器执行,并且包括测量机器的反馈信号,包括每个相电流,并产生每相的参考相电压。 该方法包括使用反馈信号和参考相电压来计算预定电压值,并将电压值与相应的阈值进行比较以确定故障。 当电压值超过相应的阈值时,执行控制动作。 电压值是以下中的一个或多个:归一化负序电压与调制指数的比率,每相的RMS电压以及每个相电流的总谐波失真。 一种装置检测故障,并包括如上所述的马达控制器和算法。 该装置可以包括电压逆变器,用于产生用于为机器供电的多相交流输出。

    MOTOR PHASE WINDING FAULT DETECTION METHOD AND APPARATUS
    4.
    发明申请
    MOTOR PHASE WINDING FAULT DETECTION METHOD AND APPARATUS 审中-公开
    电机相绕组故障检测方法及装置

    公开(公告)号:US20110089883A1

    公开(公告)日:2011-04-21

    申请号:US12582733

    申请日:2009-10-21

    IPC分类号: G01R31/06

    CPC分类号: G01R31/343 G01R31/346

    摘要: A method of detecting a phase winding fault in a multi-phase electric machine is executable via a motor controller, and includes measuring feedback signals of the machine, including each phase current, and generating reference phase voltages for each phase. The method includes calculating a predetermined voltage value using the feedback signals and reference phase voltages, and comparing the voltage value to a corresponding threshold to determine the fault. A control action is executed when the voltage value exceeds the corresponding threshold. The voltage value is one or more of: a ratio of a normalized zero sequence voltage to a modulation index, an RMS voltage for each phase, and total harmonic distortion of each phase current. An apparatus detects the fault, and includes a motor controller and an algorithm as set forth above. The apparatus may include a voltage inverter for generating a multi-phase alternating current output for powering the machine.

    摘要翻译: 检测多相电机中的相绕组故障的方法可通过马达控制器执行,并且包括测量机器的反馈信号,包括每个相电流,并产生每相的参考相电压。 该方法包括使用反馈信号和参考相电压来计算预定电压值,并将电压值与相应的阈值进行比较以确定故障。 当电压值超过相应的阈值时,执行控制动作。 电压值是以下中的一个或多个:归一化零序电压与调制指数的比率,每相的RMS电压以及每个相电流的总谐波失真。 一种装置检测故障,并包括如上所述的马达控制器和算法。 该装置可以包括电压逆变器,用于产生用于为机器供电的多相交流输出。

    METHOD AND SYSTEM FOR RESOLVER ALIGNMENT IN ELECTRIC MOTOR SYSTEM
    5.
    发明申请
    METHOD AND SYSTEM FOR RESOLVER ALIGNMENT IN ELECTRIC MOTOR SYSTEM 有权
    电动机系统中的分辨率对准方法与系统

    公开(公告)号:US20080272731A1

    公开(公告)日:2008-11-06

    申请号:US11743709

    申请日:2007-05-03

    IPC分类号: H02P27/04 G05B1/06 G05B11/42

    摘要: Methods and systems are provided for aligning a resolver in an electric motor system. The method includes commanding a d-axis current command and a speed command, operating an electric motor without a load in response to the d-axis current command and the speed command, determining a rotor speed in response to the speed command, and determining an offset of the resolver based on the speed command and the rotor speed when the rotor speed has substantially stabilized.

    摘要翻译: 提供了用于对准电动机系统中的旋转变压器的方法和系统。 该方法包括:命令d轴电流指令和速度指令,响应于d轴电流指令和速度指令,无负载地操作电动机,响应速度指令确定转子速度,并且确定 当转子速度基本上稳定时,基于速度指令和转子速度的旋转变压器的偏移。

    METHOD AND APPARATUS FOR ELECTRIC MOTOR TORQUE MONITORING
    6.
    发明申请
    METHOD AND APPARATUS FOR ELECTRIC MOTOR TORQUE MONITORING 有权
    电动机扭矩监测方法与装置

    公开(公告)号:US20090066281A1

    公开(公告)日:2009-03-12

    申请号:US11853113

    申请日:2007-09-11

    IPC分类号: H02P7/00 G08B21/00

    摘要: Methods and apparatus are provided for monitoring an achieved motor torque produced by an electric motor. The method includes determining the achieved motor torque based on a rotor position of the electric motor and a phase current of the electric motor when the motor speed is not greater than a first pre-determined threshold, determining the achieved motor torque based on a loss-compensated power supplied to the electric motor when the motor speed is greater than the first pre-determined threshold, comparing the achieved motor torque with the torque command, and indicating a fault when the achieved motor torque is not within a pre-determined margin of the torque command.

    摘要翻译: 提供了用于监测由电动机产生的实现的电动机转矩的方法和装置。 该方法包括:当电动机速度不大于第一预定阈值时,基于电动机的转子位置和电动机的相电流来确定实现的电动机转矩,基于损耗电流确定实现的电动机转矩, 当电动机速度大于第一预定阈值时,向电动机提供的补偿功率,将所获得的电动机转矩与转矩指令进行比较,并且当实现的电动机转矩不在预定阈值的预定余量内时,指示故障 扭矩指令。

    INTEGRATED CHARGER-INVERTER FOR A PERMANENT MAGNET/INDUCTION MOTOR DRIVE OF AN ELECTRIC OR HYBRID ELECTRIC VEHICLE
    7.
    发明申请
    INTEGRATED CHARGER-INVERTER FOR A PERMANENT MAGNET/INDUCTION MOTOR DRIVE OF AN ELECTRIC OR HYBRID ELECTRIC VEHICLE 有权
    用于电动或混合动力车辆的永久磁铁/感应电动机的集成充电器 - 逆变器

    公开(公告)号:US20120062176A1

    公开(公告)日:2012-03-15

    申请号:US12878260

    申请日:2010-09-09

    IPC分类号: H02J7/10 H02P6/14

    摘要: A vehicle includes an energy storage system (ESS) rechargeable using electrical power from an off-board AC power supply, a traction power inverter module (TPIM), one or two motors, and a controller. The TPIM has two inverters. The controller energizes designated semiconductor switches of the TPIM and designated induction coils of the motor to boost electrical power from the AC power supply for charging the ESS when the vehicle is not running. With two motors, a contactor allows induction coils of a first motor to be connected to the switches of the first inverter as an input filter, and an additional semiconductor switch is positioned between the ESS and an output side of the switches of the second inverter. A controller charges the ESS by energizing designated semiconductor switches of the TPIM and induction coils of the motor to charge the ESS without using an onboard battery charger module.

    摘要翻译: 车辆包括使用来自车外交流电源,牵引电力逆变器模块(TPIM),一个或两个电动机和控制器的电力可再充电的能量存储系统(ESS)。 TPIM有两个逆变器。 控制器为TPIM的指定半导体开关和电动机的指定的感应线圈通电,以在车辆不运行时从AC电源提升用于对ESS充电的电力。 使用两个电动机,接触器允许第一电动机的感应线圈作为输入滤波器连接到第一逆变器的开关,并且附加的半导体开关位于ESS与第二逆变器的开关的输出侧之间。 控制器通过为TPIM的指定半导体开关和电动机的感应线圈通电来对ESS充电,以对ESS充电,而不使用车载电池充电器模块。

    METHODS AND SYSTEMS FOR EVALUATING PERMANENT MAGNET MOTORS
    8.
    发明申请
    METHODS AND SYSTEMS FOR EVALUATING PERMANENT MAGNET MOTORS 失效
    用于评估永磁电机的方法和系统

    公开(公告)号:US20100045335A1

    公开(公告)日:2010-02-25

    申请号:US12197868

    申请日:2008-08-25

    IPC分类号: G01R31/34

    CPC分类号: G01R31/343

    摘要: A method for evaluating a permanent magnet motor, which includes a rotor with a plurality of magnets mounted thereon, and a stator with a plurality of windings in proximity to the rotor and coupled to an inverter, includes spinning the motor such that a voltage is induced in the windings of the stator and the inverter; measuring the voltage on the inverter; calculating the voltage constant from the motor from the measured voltage; comparing the voltage constant to accepted voltage constants; and identifying the motor as not acceptable if the voltage constant is outside of a range of the accepted voltage constants.

    摘要翻译: 一种用于评估永磁电动机的方法,其包括安装有多个磁体的转子和具有与转子相邻的多个绕组的定子,并且连接到逆变器,包括使电动机旋转以产生电压 在定子和逆变器的绕组中; 测量变频器的电压; 从测量电压计算电机的电压常数; 将电压常数与接受的电压常数进行比较; 并且如果电压常数在接受的电压常数的范围之外,则将电动机识别为不可接受。

    METHOD AND APPARATUS TO MONITOR POSITION OF A ROTATABLE SHAFT
    9.
    发明申请
    METHOD AND APPARATUS TO MONITOR POSITION OF A ROTATABLE SHAFT 有权
    可旋转轴的监测位置的方法和装置

    公开(公告)号:US20090115408A1

    公开(公告)日:2009-05-07

    申请号:US12245790

    申请日:2008-10-06

    IPC分类号: G01B7/30

    摘要: A rotatable shaft is equipped with a measurement device that generates output signals corresponding to discrete angular positions of the shaft. Rotational angles of the shaft are measured for a complete rotational period. A true angular velocity of the shaft is determined. Angular velocity is calculated between contiguous pairs of the discrete angular positions. A velocity correction is determined, and a rotational angle error term is determined based upon the velocity correction.

    摘要翻译: 旋转轴配备有测量装置,其产生对应于轴的离散角位置的输出信号。 测量轴的旋转角度以获得完整的旋转周期。 确定轴的真实角速度。 在连续的离散角位置对之间计算角速度。 确定速度校正,并且基于速度校正确定旋转角误差项。