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    METHODS, SYSTEMS AND APPARATUS FOR ADJUSTING DUTY CYCLE OF PULSE WIDTH MODULATED (PWM) WAVEFORMS
    1.
    发明申请
    METHODS, SYSTEMS AND APPARATUS FOR ADJUSTING DUTY CYCLE OF PULSE WIDTH MODULATED (PWM) WAVEFORMS 有权
    用于调整脉宽调制（PWM）波形占空比的方法，系统和装置

    公开(公告)号：US20120169263A1

    公开(公告)日：2012-07-05

    申请号：US12983669

    申请日：2011-01-03

    申请人： GABRIEL GALLEGOS-LOPEZ ,  MICHAEL H. KINOSHITA ,  RAY M. RANSOM ,  MILUN PERISIC

    发明人： GABRIEL GALLEGOS-LOPEZ ,  MICHAEL H. KINOSHITA ,  RAY M. RANSOM ,  MILUN PERISIC

    IPC分类号： H02P6/00

    CPC分类号： H02P21/12 ,  H02P25/22 ,  H02P27/08

    摘要： Embodiments of the present invention relate to methods, systems and apparatus for controlling operation of a multi-phase machine in a vector controlled motor drive system when the multi-phase machine operates in an overmodulation region. The disclosed embodiments provide a mechanism for adjusting a duty cycle of PWM waveforms so that the correct phase voltage command signals are applied at the angle transitions. This can reduce variations/errors in the phase voltage command signals applied to the multi-phase machine so that phase current may be properly regulated thus reducing current/torque oscillation, which can in turn improve machine efficiency and performance, as well as utilization of the DC voltage source.

    摘要翻译： 本发明的实施例涉及当多相机在过调制区域中操作时，用于控制矢量控制的电动机驱动系统中的多相机的操作的方法，系统和装置。 所公开的实施例提供了用于调整PWM波形的占空比的机制，使得在角度转变处施加正确的相电压命令信号。 这可以减少施加到多相机的相电压指令信号中的变化/误差，从而可以适当调节相电流，从而减少电流/转矩振荡，从而提高机器效率和性能，以及利用 直流电压源。

    METHODS, SYSTEMS AND APPARATUS FOR GENERATING CURRENT COMMANDS USED TO CONTROL OPERATION OF AN ELECTRIC MACHINE
    3.
    发明申请
    METHODS, SYSTEMS AND APPARATUS FOR GENERATING CURRENT COMMANDS USED TO CONTROL OPERATION OF AN ELECTRIC MACHINE 有权
    用于产生用于控制电机运行的电流指令的方法，系统和装置

    公开(公告)号：US20130175960A1

    公开(公告)日：2013-07-11

    申请号：US13344236

    申请日：2012-01-05

    申请人： GABRIEL GALLEGOS-LOPEZ ,  MICHAEL H. KINOSHITA ,  MILUN PERISIC

    发明人： GABRIEL GALLEGOS-LOPEZ ,  MICHAEL H. KINOSHITA ,  MILUN PERISIC

    IPC分类号： H02P6/00

    CPC分类号： H02P21/00 ,  H02P21/22

    摘要： Embodiments of the present disclosure relate to methods, systems and apparatus for mapping torque to current to generate current commands used to control operation of an electric machine. Based on a DC input voltage, lookup tables (LUTs) are selected. Each of the selected LUTs includes a plurality (B) of first entries that correspond a particular input value of an angular rotation speed of the electric machine, and a set of coefficients are output from each of the selected LUTs that can be applied within a first polynomial function to generate a plurality of first polynomial functions each having a different sets of coefficients. A plurality of particular output values for a first current command are generated via the plurality of first polynomial functions. The particular output values for the first current command can be interpolated to generate a final output value for the first current command.

    摘要翻译： 本公开的实施例涉及用于将扭矩映射到电流以产生用于控制电机操作的电流命令的方法，系统和装置。 基于直流输入电压，选择查找表（LUT）。 每个所选择的LUT包括对应于电机的角度旋转速度的特定输入值的第一条目的多个（B），并且一组系数从可以应用于第一 多项式函数，用于生成多个具有不同系数集合的第一多项式函数。 经由多个第一多项式函数产生用于第一电流命令的多个特定输出值。 可以内插第一个当前命令的特定输出值，以生成第一个当前命令的最终输出值。

    LINEARITY FOR FIELD WEAKENING IN AN INTERIOR PERMANENT MAGNET MACHINE
    6.
    发明申请
    LINEARITY FOR FIELD WEAKENING IN AN INTERIOR PERMANENT MAGNET MACHINE 有权
    在内置永磁电机中进行场疲劳的线性度

    公开(公告)号：US20100231149A1

    公开(公告)日：2010-09-16

    申请号：US12786104

    申请日：2010-05-24

    申请人： GABRIEL GALLEGOS-LOPEZ ,  YO CHAN SON ,  MILUN PERISIC ,  SILVA HITI

    发明人： GABRIEL GALLEGOS-LOPEZ ,  YO CHAN SON ,  MILUN PERISIC ,  SILVA HITI

    IPC分类号： H02P21/00

    CPC分类号： B60L15/025 ,  B60L2200/26 ,  B60L2220/14 ,  H02P21/0089 ,  H02P21/06 ,  Y02T10/643

    摘要： Systems and methods are disclosed to provide torque linearity in the field-weakening region for an electric (e.g., IPM) machine. The systems and methods implement a field weakening and a torque linearity control loop for linearizing torque generated by an electric machine. First and second voltage commands are used at the field weakening loop to generate a first adjusting current command. The first adjusting current command is then provided to the torque linearity control loop, where it is multiplied by a gain to generate an output current command, which can then be limited to generate a second adjusting current command. The second adjusting current command can then be added to a current command to generate an adjusted current command. The first adjusting current command can also be added to another current command to generate another adjusted current command. The adjusted current commands and feedback currents are then used at a synchronous current regulator to generate new first and second voltage commands. As a result, torque linearity is maintained when the electric machine operates in the field weakening region.

    摘要翻译： 公开了系统和方法以在电动（例如，IPM）机器的弱磁区域中提供扭矩线性度。 该系统和方法实现了减弱电磁场和扭矩线性控制回路，用于线性化电机产生的转矩。 在弱磁环路处使用第一和第二电压指令来产生第一调整电流指令。 然后将第一调整电流指令提供给转矩线性控制回路，在该转矩线性控制回路中乘以增益以产生输出电流指令，然后可以限制该指令以产生第二调整电流指令。 然后可以将第二调整电流命令添加到当前命令以产生经调整的电流命令。 第一个调整电流命令也可以添加到另一个当前命令，以生成另一个调整的电流命令。 然后在同步电流调节器上使用调整后的电流指令和反馈电流来产生新的第一和第二电压指令。 结果，当电机在弱磁区域中运行时，扭矩线性度得以保持。

    METHOD AND SYSTEM FOR OPERATING AN ELECTRIC MOTOR
    7.
    发明申请
    METHOD AND SYSTEM FOR OPERATING AN ELECTRIC MOTOR 有权
    用于操作电动机的方法和系统

    公开(公告)号：US20110238245A1

    公开(公告)日：2011-09-29

    申请号：US12732003

    申请日：2010-03-25

    申请人： GABRIEL GALLEGOS-LOPEZ ,  SILVA HITI ,  MILUN PERISIC

    发明人： GABRIEL GALLEGOS-LOPEZ ,  SILVA HITI ,  MILUN PERISIC

    IPC分类号： G06F19/00 ,  H02P21/00

    CPC分类号： B60L15/025 ,  B60L11/14 ,  B60L15/20 ,  B60L2220/14 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7275

    摘要： Methods and systems for operating an electric motor having a plurality of windings with an inverter having a plurality of switches coupled to a voltage source are provided. A first plurality of switching vectors is applied to the plurality of switches. The first plurality of switching vectors includes a first ratio of first magnitude switching vectors to second magnitude switching vectors. A direct current (DC) current associated with the voltage source is monitored during the applying of the first plurality of switching vectors to the plurality of switches. A second ratio of the first magnitude switching vectors to the second magnitude switching vectors is selected based on the monitoring of the DC current associated with the voltage source. A second plurality of switching vectors is applied to the plurality of switches. The second plurality of switching vectors includes the second ratio of the first magnitude switching vectors to the second magnitude switching vectors.

    摘要翻译： 提供了用于操作具有多个绕组的电动机的方法和系统，其中逆变器具有耦合到电压源的多个开关。 第一多个切换矢量被施加到多个开关。 第一多个切换矢量包括第一幅度切换矢量与第二幅度切换矢量的第一比率。 在将第一多个切换向量应用于多个开关期间，监视与电压源相关联的直流（DC）电流。 基于与电压源相关联的直流电流的监视来选择第一幅度切换矢量与第二幅度切换矢量的第二比率。 第二多个切换向量被应用于多个开关。 第二多个切换矢量包括第一幅度切换矢量与第二幅度切换矢量的第二比率。

    METHODS, SYSTEMS AND APPARATUS FOR SYNCHRONOUS CURRENT REGULATION OF A FIVE-PHASE MACHINE
    8.
    发明申请
    METHODS, SYSTEMS AND APPARATUS FOR SYNCHRONOUS CURRENT REGULATION OF A FIVE-PHASE MACHINE 有权
    五相同步电流调节方法，系统及装置

    公开(公告)号：US20110221366A1

    公开(公告)日：2011-09-15

    申请号：US12720366

    申请日：2010-03-09

    申请人： GABRIEL GALLEGOS-LOPEZ ,  MILUN PERISIC

    发明人： GABRIEL GALLEGOS-LOPEZ ,  MILUN PERISIC

    IPC分类号： H02P21/14

    CPC分类号： H02P21/06 ,  H02P21/36 ,  H02P25/22 ,  H02P29/032

    摘要： Methods, systems and apparatus are provided for controlling operation of and regulating current provided to a five-phase machine when one or more phases has experienced a fault or has failed. In one implementation, the disclosed embodiments can be used to synchronously regulate current in a vector controlled motor drive system that includes a five-phase AC machine, a five-phase inverter module coupled to the five-phase AC machine, and a synchronous current regulator.

    摘要翻译： 提供方法，系统和装置，用于当一个或多个相经历故障或失败时控制提供给五相机的电流的操作和调节电流。 在一个实施方案中，所公开的实施例可以用于同步调节矢量控制的电机驱动系统中的电流，所述矢量控制的电机驱动系统包括五相交流电机，耦合到五相交流电机的五相逆变器模块，以及同步电流调节器 。

    METHODS, SYSTEMS AND APPARATUS FOR CONTROLLING OPERATION OF TWO ALTERNATING CURRENT (AC) MACHINES
    10.
    发明申请
    METHODS, SYSTEMS AND APPARATUS FOR CONTROLLING OPERATION OF TWO ALTERNATING CURRENT (AC) MACHINES 有权
    用于控制两台交流电机（AC）机器的操作的方法，系统和装置

    公开(公告)号：US20100301787A1

    公开(公告)日：2010-12-02

    申请号：US12473988

    申请日：2009-05-28

    申请人： GABRIEL GALLEGOS-LOPEZ ,  JAMES M. NAGASHIMA ,  MILUN PERISIC ,  SILVA HITI

    发明人： GABRIEL GALLEGOS-LOPEZ ,  JAMES M. NAGASHIMA ,  MILUN PERISIC ,  SILVA HITI

    IPC分类号： H02P21/00

    CPC分类号： H02P5/74 ,  H02P21/22

    摘要： A system is provided for controlling two alternating current (AC) machines via a five-phase PWM inverter module. The system comprises a first control loop, a second control loop, and a current command adjustment module. The current command adjustment module operates in conjunction with the first control loop and the second control loop to continuously adjust current command signals that control the first AC machine and the second AC machine such that they share the input voltage available to them without compromising the target mechanical output power of either machine. This way, even when the phase voltage available to either one of the machines decreases, that machine outputs its target mechanical output power.

    摘要翻译： 提供一种用于通过五相PWM逆变器模块控制两个交流（AC）机器的系统。 该系统包括第一控制回路，第二控制回路和电流指令调整模块。 电流指令调整模块与第一控制回路和第二控制回路结合操作，以连续地调节控制第一交流电机和第二交流电机的电流指令信号，使得它们共享可用的输入电压，而不损害目标机械 两台机器的输出功率。 这样，即使可用于任何一台机器的相电压降低，该机器输出其目标机械输出功率。