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    METHOD AND SYSTEM FOR CONVERTING DC POWER TO AC POWER
    1.
    发明申请
    METHOD AND SYSTEM FOR CONVERTING DC POWER TO AC POWER 有权
    将直流电转换为交流电的方法和系统

    公开(公告)号：US20090066271A1

    公开(公告)日：2009-03-12

    申请号：US11853894

    申请日：2007-09-12

    申请人： Lateef A. Kajouke ,  Brian A. Welchko

    发明人： Lateef A. Kajouke ,  Brian A. Welchko

    IPC分类号： H02P27/08 ,  H02M7/42

    CPC分类号： H02M7/5387 ,  H02P27/08

    摘要： Methods and systems for converting direct current (DC) power to alternating current (AC) power are provided. A first phase of the AC power is generated based on a first carrier signal. A second phase of the AC power is generated based on a second carrier signal.

    摘要翻译： 提供了将直流（DC）功率转换为交流（AC）功率的方法和系统。 基于第一载波信号产生交流电源的第一相。 基于第二载波信号产生交流电源的第二相。

    VOLTAGE LINK CONTROL OF A DC-AC BOOST CONVERTER SYSTEM
    2.
    发明申请
    VOLTAGE LINK CONTROL OF A DC-AC BOOST CONVERTER SYSTEM 有权
    直流交流升压转换器系统的电压链控制

    公开(公告)号：US20090027933A1

    公开(公告)日：2009-01-29

    申请号：US11829285

    申请日：2007-07-27

    申请人： Lateef A. Kajouke ,  Brian A. Welchko

    发明人： Lateef A. Kajouke ,  Brian A. Welchko

    IPC分类号： H02M7/5395 ,  H02M3/135

    CPC分类号： H02M7/53871 ,  H02M2001/007

    摘要： Systems and methods are disclosed for a DC boost converter. The systems and methods combine operation of an inductor with the input capacitor of a DC/AC inverter via a switch configuration to power the DC/AC inverter. The switch configuration is controlled by a plurality of control signals generated by a controller based on a variety of control modes, and feedback signals.

    摘要翻译： 公开了用于DC升压转换器的系统和方法。 该系统和方法通过开关配置将电感器与DC / AC逆变器的输入电容器的操作相结合，为DC / AC逆变器供电。 开关配置由控制器基于各种控制模式和反馈信号产生的多个控制信号来控制。

    Methods, systems and apparatus for controlling a multi-phase inverter
    4.
    发明授权
    Methods, systems and apparatus for controlling a multi-phase inverter 有权
    用于控制多相逆变器的方法，系统和装置

    公开(公告)号：US08575879B2

    公开(公告)日：2013-11-05

    申请号：US13214042

    申请日：2011-08-19

    申请人： Brian A. Welchko ,  Min Dai

    发明人： Brian A. Welchko ,  Min Dai

    IPC分类号： G05B9/02

    CPC分类号： H02M1/32 ,  H02P3/22 ,  H02P21/0085 ,  H02P27/08 ,  H02P2203/09

    摘要： Embodiments of the present invention relate to methods, systems, a machine-readable medium operable in a controller, and apparatus for controlling a multi-phase inverter that drives a multi-phase electric machine. When a sensor fault is detected, a phase current angle is computed based on the feedback stator currents, and used to estimate an angular velocity and an angular position of a rotor of the multi-phase electric machine. When the estimated angular velocity of the multi-phase electric machine is less than a transition angular velocity threshold, an open-circuit response can be applied at the multi-phase inverter by controlling all switches in the multi-phase inverter drive to be open. By contrast, when the estimated angular velocity is greater than the transition angular velocity threshold, a short-circuit response can be applied at the multi-phase inverter by controlling selected switches in the multi-phase inverter drive to connect all phases of the multi-phase inverter to a single bus (e.g., either the plus bus or the minus bus).

    摘要翻译： 本发明的实施例涉及可在控制器中操作的方法，系统，机器可读介质，以及用于控制驱动多相电机的多相逆变器的装置。 当检测到传感器故障时，基于反馈定子电流计算相电流角，并用于估计多相电机的转子的角速度和角位置。 当多相电机的估计角速度小于过渡角速度阈值时，可以通过控制多相逆变器驱动中的所有开关打开来在多相逆变器处施加开路响应。 相反，当估计的角速度大于转换角速度阈值时，可以通过控制多相逆变器驱动中的选定开关来连接多相逆变器的所有相，从而在多相逆变器上施加短路响应， 单相总线（例如，加总线或负母线）。

    Electrical system using phase-shifted carrier signals and related operating methods
    6.
    发明授权
    Electrical system using phase-shifted carrier signals and related operating methods 有权
    电气系统采用相移载波信号及相关操作方法

    公开(公告)号：US08269434B2

    公开(公告)日：2012-09-18

    申请号：US12473933

    申请日：2009-05-28

    申请人： Brian A. Welchko ,  Jeremy B. Campbell

    发明人： Brian A. Welchko ,  Jeremy B. Campbell

    IPC分类号： H02P1/00

    CPC分类号： B60L15/02 ,  B60K1/00 ,  B60L11/1803 ,  B60L2210/46 ,  B60L2220/12 ,  B60L2220/58 ,  H02K3/28 ,  H02K11/33 ,  H02M7/5387 ,  H02M7/53871 ,  H02P5/74 ,  H02P25/22 ,  H02P27/08 ,  Y02T10/641 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7241 ,  Y10T29/49002

    摘要： An automotive drive system and methods for making the same are provided. The system includes a three-phase motor and an inverter module. The three-phase motor includes a first set of windings each having a first magnetic polarity; and a second set of windings each having a second magnetic polarity that is opposite the first magnetic polarity. The first set of windings being electrically isolated from the second set of windings. The inverter module includes a first set of phase legs and a second set of phase legs. Each one of the first set of phase legs is coupled to a corresponding phase of the first set of windings, and each one of the second set of phase legs is coupled to a corresponding phase of the second set of windings.

    摘要翻译： 提供了一种汽车驱动系统及其制造方法。 该系统包括三相电机和逆变器模块。 三相电动机包括：第一组绕组，每个绕组具有第一磁极性; 以及第二组绕组，每个绕组具有与第一磁极性相反的第二磁极性。 第一组绕组与第二组绕组电隔离。 逆变器模块包括第一组相位支路和第二组相位支路。 第一组相位腿中的每一个耦合到第一组绕组的对应相位，并且第二组相位腿中的每一个耦合到第二组绕组的相应相位。

    Double ended inverter system with an impedance source inverter subsystem
    8.
    发明授权
    Double ended inverter system with an impedance source inverter subsystem 有权
    具有阻抗源逆变器子系统的双端逆变器系统

    公开(公告)号：US07956569B2

    公开(公告)日：2011-06-07

    申请号：US12132486

    申请日：2008-06-03

    申请人： Brian A. Welchko ,  James M. Nagashima ,  Gregory S. Smith ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

    发明人： Brian A. Welchko ,  James M. Nagashima ,  Gregory S. Smith ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

    IPC分类号： H02P27/04

    CPC分类号： B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

    摘要： A double ended inverter system suitable for use with an AC electric traction motor of a vehicle is provided. The double ended inverter system cooperates with a first DC energy source and a second DC energy source, which may have different nominal voltages. The double ended inverter system includes an impedance source inverter subsystem configured to drive the AC electric traction motor using the first energy source, and an inverter subsystem configured to drive the AC electric traction motor using the second energy source. The double ended inverter system also utilizes a controller coupled to the impedance source inverter subsystem and to the inverter subsystem. The controller is configured to control the impedance source inverter subsystem and the inverter subsystem in accordance with a boost operating mode, a traditional inverter operating mode, and a recharge operating mode of the double ended inverter system.

    摘要翻译： 提供适用于车辆的交流电动牵引电动机的双端逆变器系统。 双端逆变器系统与可能具有不同标称电压的第一DC能量源和第二DC能量源协作。 双端逆变器系统包括：阻抗源逆变器子系统，被配置为使用第一能量源驱动交流电力牵引电动机;以及逆变器子系统，被配置为使用第二能量源驱动交流电力牵引电动机。 双端逆变器系统还使用耦合到阻抗源逆变器子系统和逆变器子系统的控制器。 控制器配置为根据升压运行模式，传统逆变器工作模式和双端逆变器系统的充电操作模式控制阻抗源逆变器子系统和逆变器子系统。

    Method and system for controlling pulse width modulation in a power inverter in electric drives
    9.
    发明授权
    Method and system for controlling pulse width modulation in a power inverter in electric drives 有权
    电力变频器中脉宽调制控制方法及系统

    公开(公告)号：US07679310B2

    公开(公告)日：2010-03-16

    申请号：US11923293

    申请日：2007-10-24

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

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

    IPC分类号： H02P23/00

    CPC分类号： B60L15/08 ,  B60L11/1803 ,  B60L15/007 ,  B60L15/20 ,  B60L2210/42 ,  B60L2240/421 ,  B60L2240/423 ,  H02P27/08 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7241 ,  Y02T10/7275

    摘要： Methods and systems for controlling a power inverter in an electric drive system of an automobile are provided. The various embodiments control the power inverter by, responsive to either a commanded torque of the electric motor being above a first torque level, or a commanded speed of the electric motor being above a first speed level, controlling the power inverter with a discontinuous pulse width modulated (DPWM) signal to generate a modulated voltage waveform for driving the electric motor. Additionally, the embodiments control the power inverter by, responsive to both a commanded torque of the electric motor being below the first torque level, and a commanded speed of the electric motor being below the first speed level, controlling the power inverter with a continuous pulse width modulated (CPWM) signal to generate the modulated voltage waveform for driving the electric motor.

    摘要翻译： 提供了一种用于控制汽车电驱动系统中的电力逆变器的方法和系统。 各种实施例通过响应于电动机的指令转矩高于第一转矩水平或电动机的指令速度高于第一速度水平来控制功率逆变器，以不连续脉冲宽度控制功率逆变器 调制（DPWM）信号以产生用于驱动电动机的调制电压波形。 此外，这些实施例通过响应于电动机的指令转矩低于第一转矩水平和电动机的指令速度低于第一速度水平来控制功率逆变器，以连续脉冲 宽度调制（CPWM）信号以产生用于驱动电动机的调制电压波形。