公开(公告)号：US20110187304A1

公开(公告)日：2011-08-04

申请号：US12698221

申请日：2010-02-02

申请人： Mohammad N. Anwar ,  S.M. N. Hasan ,  Khwaja M. Rahman ,  Silva Hiti ,  Steven E. Schulz ,  Sean E. Gleason

发明人： Mohammad N. Anwar ,  S.M. N. Hasan ,  Khwaja M. Rahman ,  Silva Hiti ,  Steven E. Schulz ,  Sean E. Gleason

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。

公开(公告)号：US07449859B2

公开(公告)日：2008-11-11

申请号：US11676527

申请日：2007-02-20

申请人： Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  Silva Hiti

发明人： Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  Silva Hiti

IPC分类号： H02P23/00

CPC分类号： B60L15/025 ,  B60L11/1803 ,  B60L15/20 ,  B60L2210/20 ,  B60L2220/14 ,  H02P21/04 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/725 ,  Y02T10/7275

摘要： A control architecture for an electrical inverter includes a synchronous frame current regulator and a stationary frame current regulator. The stationary frame current regulator receives input currents that represent filtered versions of stationary frame currents that correspond to the inverter output currents. The control architecture employs an adaptive filter module that filters the stationary frame currents to remove the fundamental motor frequency component (and its related harmonics), thus extracting any low frequency harmonic components. The stationary frame current regulator processes the low frequency components, while the synchronous frame current regulator processes the fundamental frequency component, resulting in suppression of low frequency oscillations in the inverter output.

摘要翻译： 用于电力逆变器的控制架构包括同步电流调节器和静止电流调节器。 静态框架电流调节器接收表示对应于逆变器输出电流的静态框电流的滤波版本的输入电流。 控制架构采用自适应滤波器模块，对固定电流进行滤波，去除基波电机频率分量（及其相关谐波），从而提取任何低频谐波分量。 静态电流调节器处理低频分量，而同步电流调节器处理基频分量，从而抑制逆变器输出中的低频振荡。

公开(公告)号：US20080224649A1

公开(公告)日：2008-09-18

申请号：US11685729

申请日：2007-03-13

申请人： Bonho Bae ,  Steven E. Schulz ,  Silva Hiti ,  Nitinkumar R. Patel

发明人： Bonho Bae ,  Steven E. Schulz ,  Silva Hiti ,  Nitinkumar R. Patel

IPC分类号： H02P27/04

CPC分类号： H02P21/22

摘要： A control architecture for an electrical inverter includes a command limiter that is realized as a circular voltage limiter. The command limiter includes a Cartesian-to-polar converter coupled to a command source such as a synchronous frame current regulator. The Cartesian-to-polar converter provides magnitude and phase components for d-q command voltages. The command limiter further includes a magnitude limiter that limits the magnitude component to the maximum fundamental voltage component of the inverter, and a polar-to-Cartesian converter that converts the limited magnitude component and the phase component into modified d-q command voltages.

摘要翻译： 用于逆变器的控制结构包括实现为圆形电压限制器的指令限制器。 命令限制器包括耦合到诸如同步帧电流调节器的命令源的笛卡尔到极化转换器。 笛卡尔到极化转换器为d-q指令电压提供幅度和相位分量。 命令限制器还包括限幅器，其将幅度分量限制到逆变器的最大基波电压分量;以及极限到笛卡尔转换器，其将受限幅度分量和相位分量转换为修改的d-q指令电压。

公开(公告)号：US20110089883A1

公开(公告)日：2011-04-21

申请号：US12582733

申请日：2009-10-21

申请人： Mohammad N. Anwar ,  S.M. N. Hasan ,  Khwaja M. Rahman ,  Silva Hiti ,  Steven E. Schulz ,  Sean E. Gleason

发明人： Mohammad N. Anwar ,  S.M. N. Hasan ,  Khwaja M. Rahman ,  Silva Hiti ,  Steven E. Schulz ,  Sean E. Gleason

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。

公开(公告)号：US08536818B2

公开(公告)日：2013-09-17

申请号：US13086532

申请日：2011-04-14

申请人： Steven E. Schulz ,  Mohammad N. Anwar ,  Michael J. Grimmer ,  Silva Hiti

发明人： Steven E. Schulz ,  Mohammad N. Anwar ,  Michael J. Grimmer ,  Silva Hiti

IPC分类号： G05B11/28

CPC分类号： H02P27/08 ,  B60L11/1803 ,  Y02T10/642 ,  Y02T10/7005

摘要： A method for controlling a traction power inverter module (TPIM) in a vehicle includes determining a commanded output torque of the motor using a controller. The method further includes controlling the TPIM and motor using a discontinuous pulse width modulated (DPWM) signal when the commanded output torque is less than a calibrated torque threshold. A continuous pulse width modulated (CPWM) signal is used when the commanded output torque is greater than the threshold. The method may include determining a direction of a change in the commanded output torque, and controlling the TPIM, via the controller, using the DPWM signal only when the commanded output torque drops below a predetermined hysteresis level. A vehicle includes a traction motor producing a motor torque for propelling the vehicle, an ESS, a TPIM, and a controller configured as noted above.

摘要翻译： 用于控制车辆中的牵引力逆变器模块（TPIM）的方法包括使用控制器确定电动机的命令输出转矩。 该方法还包括当指令的输出转矩小于校准转矩阈值时，使用不连续的脉宽调制（DPWM）信号来控制TPIM和电动机。 当指令输出转矩大于阈值时，使用连续脉宽调制（CPWM）信号。 该方法可以包括：仅当指令的输出转矩低于预定的滞后电平时，才通过控制器使用DPWM信号来确定所命令的输出转矩的改变的方向，并控制TPIM。 车辆包括产生用于推进车辆的电动机扭矩的牵引电动机，ESS，TPIM和如上所述配置的控制器。

公开(公告)号：US08362732B2

公开(公告)日：2013-01-29

申请号：US12698221

申请日：2010-02-02

申请人： Mohammad N. Anwar ,  S. M. N. Hasan ,  Khwaja M. Rahman ,  Silva Hiti ,  Steven E. Schulz ,  Sean E. Gleason

发明人： Mohammad N. Anwar ,  S. M. N. Hasan ,  Khwaja M. Rahman ,  Silva Hiti ,  Steven E. Schulz ,  Sean E. Gleason

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。

公开(公告)号：US20120112674A1

公开(公告)日：2012-05-10

申请号：US13086532

申请日：2011-04-14

申请人： Steven E. Schulz ,  Mohammad N. Anwar ,  Michael J. Grimmer ,  Silva Hiti

发明人： Steven E. Schulz ,  Mohammad N. Anwar ,  Michael J. Grimmer ,  Silva Hiti

IPC分类号： H02P6/08

CPC分类号： H02P27/08 ,  B60L11/1803 ,  Y02T10/642 ,  Y02T10/7005

摘要： A method for controlling a traction power inverter module (TPIM) in a vehicle includes determining a commanded output torque of the motor using a controller. The method further includes controlling the TPIM and motor using a discontinuous pulse width modulated (DPWM) signal when the commanded output torque is less than a calibrated torque threshold. A continuous pulse width modulated (CPWM) signal is used when the commanded output torque is greater than the threshold. The method may include determining a direction of a change in the commanded output torque, and controlling the TPIM, via the controller, using the DPWM signal only when the commanded output torque drops below a predetermined hysteresis level. A vehicle includes a traction motor producing a motor torque for propelling the vehicle, an ESS, a TPIM, and a controller configured as noted above.

摘要翻译： 用于控制车辆中的牵引力逆变器模块（TPIM）的方法包括使用控制器确定电动机的命令输出转矩。 该方法还包括当指令的输出转矩小于校准转矩阈值时，使用不连续的脉宽调制（DPWM）信号来控制TPIM和电动机。 当指令输出转矩大于阈值时，使用连续脉宽调制（CPWM）信号。 该方法可以包括：仅当指令的输出转矩低于预定的滞后电平时，才通过控制器使用DPWM信号来确定所命令的输出转矩的变化方向，并控制TPIM。 车辆包括产生用于推进车辆的电动机扭矩的牵引电动机，ESS，TPIM和如上所述配置的控制器。

公开(公告)号：US08446113B2

公开(公告)日：2013-05-21

申请号：US12817950

申请日：2010-06-17

申请人： Brian A Welchko ,  Konstantin S. Majarov ,  Silva Hiti ,  Steven E. Schulz ,  Aniket Kothari ,  Nicholas Kokotovich

发明人： Brian A Welchko ,  Konstantin S. Majarov ,  Silva Hiti ,  Steven E. Schulz ,  Aniket Kothari ,  Nicholas Kokotovich

IPC分类号： H02P3/14

CPC分类号： B60L7/06 ,  B60L3/04 ,  B60L7/003 ,  B60L7/08 ,  Y02T10/7258

摘要： Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated or each of the plurality of low switches is activated and each of the plurality of high switches is deactivated. In the second mode of operation, each of the plurality of high switches is deactivated and each of the plurality of low switches is deactivated.

摘要翻译： 提供了用于操作具有多个高开关的逆变器和耦合到电动机的多个低开关的方法和系统。 检测到表示电动机减速的事件。 逆变器在电动机的减速期间在第一操作模式和第二操作模式之间交替。 在第一操作模式中，多个高开关中的每一个被激活，并且多个低开关中的每一个被去激活，或者多个低开关中的每一个被激活，并且多个高开关中的每一个被去激活。 在第二操作模式中，多个高开关中的每一个被去激活，并且多个低开关中的每一个被去激活。

公开(公告)号：US20110309779A1

公开(公告)日：2011-12-22

申请号：US12817952

申请日：2010-06-17

申请人： Silva Hiti ,  Steven E. Schulz ,  Konstantin S. Majarov ,  Brian A. Welchko

发明人： Silva Hiti ,  Steven E. Schulz ,  Konstantin S. Majarov ,  Brian A. Welchko

IPC分类号： H02P6/00

CPC分类号： B60L11/14 ,  B60L3/0061 ,  B60L7/14 ,  B60L15/2009 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/423 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275

摘要： Methods and systems for operating an inverter coupled to an electric motor are provided. The inverter has a plurality of high switches and a plurality of low switches coupled to the electric motor. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated. In the second mode of operation, each of the plurality of low switches is activated and each of the plurality of high switches is deactivated.

摘要翻译： 提供了用于操作耦合到电动机的逆变器的方法和系统。 逆变器具有耦合到电动机的多个高开关和多个低开关。 检测到表示电动机减速的事件。 逆变器在电动机的减速期间在第一操作模式和第二操作模式之间交替。 在第一操作模式中，多个高开关中的每一个被激活，并且多个低开关中的每一个被去激活。 在第二操作模式中，多个低开关中的每一个被激活，并且多个高开关中的每一个被去激活。

公开(公告)号：US20110309777A1

公开(公告)日：2011-12-22

申请号：US12817950

申请日：2010-06-17

申请人： Brian A. Welchko ,  Konstantin S. Majarov ,  Silva Hiti ,  Steven E. Schulz ,  Aniket Kothari ,  Nicholas Kokotovich

发明人： Brian A. Welchko ,  Konstantin S. Majarov ,  Silva Hiti ,  Steven E. Schulz ,  Aniket Kothari ,  Nicholas Kokotovich

IPC分类号： H02P3/14

CPC分类号： B60L7/06 ,  B60L3/04 ,  B60L7/003 ,  B60L7/08 ,  Y02T10/7258

摘要： Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated or each of the plurality of low switches is activated and each of the plurality of high switches is deactivated. In the second mode of operation, each of the plurality of high switches is deactivated and each of the plurality of low switches is deactivated.

摘要翻译： 提供了用于操作具有多个高开关的逆变器和耦合到电动机的多个低开关的方法和系统。 检测到表示电动机减速的事件。 逆变器在电动机的减速期间在第一操作模式和第二操作模式之间交替。 在第一操作模式中，多个高开关中的每一个被激活，并且多个低开关中的每一个被去激活，或者多个低开关中的每一个被激活，并且多个高开关中的每一个被去激活。 在第二操作模式中，多个高开关中的每一个被去激活，并且多个低开关中的每一个被去激活。