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    ELECTRICAL SYSTEM FOR PULSE-WIDTH MODULATED CONTROL OF A POWER INVERTER USING PHASE-SHIFTED CARRIER SIGNALS AND RELATED OPERATING METHODS
    31.
    发明申请
    ELECTRICAL SYSTEM FOR PULSE-WIDTH MODULATED CONTROL OF A POWER INVERTER USING PHASE-SHIFTED CARRIER SIGNALS AND RELATED OPERATING METHODS 有权
    使用相变载波信号的电力逆变器的脉冲宽度调制控制电气系统及相关操作方法

    公开(公告)号：US20100072928A1

    公开(公告)日：2010-03-25

    申请号：US12236172

    申请日：2008-09-23

    Applicant: BRIAN A. WELCHKO

    Inventor： BRIAN A. WELCHKO

    IPC: H02P27/06

    CPC classification number: H02M7/53871 ,  B60L11/1803 ,  B60L2210/46 ,  B60L2220/58 ,  H02P25/22 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7241

    Abstract: Systems and methods are provided for pulse-width modulated control of power inverter using phase-shifted carrier signals. An electrical system comprises an energy source and a motor. The motor has a first set of windings and a second set of windings, which are electrically isolated from each other. An inverter module is coupled between the energy source and the motor and comprises a first set of phase legs coupled to the first set of windings and a second set of phase legs coupled to the second set of windings. A controller is coupled to the inverter module and is configured to achieve a desired power flow between the energy source and the motor by modulating the first set of phase legs using a first carrier signal and modulating the second set of phase legs using a second carrier signal. The second carrier signal is phase-shifted relative to the first carrier signal.

    Abstract translation: 提供了使用相移载波信号对功率逆变器进行脉宽调制控制的系统和方法。 电气系统包括能量源和电动机。 电动机具有第一组绕组和第二组绕组，它们彼此电隔离。 逆变器模块耦合在能量源和电动机之间，并且包括耦合到第一组绕组的第一组相位支脚和耦合到第二组绕组的第二组相位支路。 控制器耦合到逆变器模块并且被配置为通过使用第一载波信号调制第一组相位支路并且使用第二载波信号来调制第二组相位支路来实现能量源和电动机之间的期望功率流 。 第二载波信号相对于第一载波信号相移。

    DC BUS DISCHARGE IN AN ELECTRIC MOTOR SYSTEM
    33.
    发明申请
    DC BUS DISCHARGE IN AN ELECTRIC MOTOR SYSTEM 有权
    直流母线放电在电动马达系统中

    公开(公告)号：US20090230913A1

    公开(公告)日：2009-09-17

    申请号：US12047123

    申请日：2008-03-12

    Applicant: Silva HITI ,  David TANG ,  Brian A. WELCHKO ,  Milun PERISIC ,  Constantin C. STANCU

    Inventor： Silva HITI ,  David TANG ,  Brian A. WELCHKO ,  Milun PERISIC ,  Constantin C. STANCU

    IPC: H02P23/10 ,  H02P27/06

    CPC classification number: H02P27/06 ,  H02P3/22 ,  H02P23/10

    Abstract: Methods and apparatus are provided for improved discharge of a DC bus which provides power to an inverter. An electric motor system provided with the improved discharge method for discharge of the DC bus includes an electric motor, the inverter which provides electric control for the permanent magnet electric motor, the direct current (DC) bus which provides power to the inverter, and a processor. The processor generates operational control signals and provides such operational control signals to the inverter. In response to detecting a predetermined discharge signal, the processor generates operational control signals for generating a ripple current in motor windings of the electric motor to dissipate energy from the DC bus through a passive load, the passive load including the motor windings of the electric motor.

    Abstract translation: 提供了用于改进向逆变器提供电力的DC总线的放电的方法和装置。 具有改善的用于排放DC总线的放电方法的电动机系统包括电动机，为永磁电动机提供电力控制的逆变器，向逆变器供电的直流（DC）总线，以及 处理器。 处理器产生操作控制信号，并向变频器提供这种操作控制信号。 响应于检测到预定的放电信号，处理器产生用于在电动机的电动机绕组中产生纹波电流的操作控制信号，以通过无源负载从DC总线耗散能量，包括电动机的电动机绕组的被动负载 。

    REDUNDANT DC BUS DISCHARGE FOR AN ELECTRIC MOTOR SYSTEM
    34.
    发明申请
    REDUNDANT DC BUS DISCHARGE FOR AN ELECTRIC MOTOR SYSTEM 有权
    用于电动马达系统的冗余直流总线放电

    公开(公告)号：US20090230909A1

    公开(公告)日：2009-09-17

    申请号：US12047120

    申请日：2008-03-12

    Applicant: SILVA HITI ,  DAVID TANG ,  BRIAN A. WELCHKO ,  MILUN PERISIC ,  CONSTANTIN C. STANCU

    Inventor： SILVA HITI ,  DAVID TANG ,  BRIAN A. WELCHKO ,  MILUN PERISIC ,  CONSTANTIN C. STANCU

    IPC: G05B9/03 ,  H02P23/10 ,  H02P27/06

    CPC classification number: H02P21/0003 ,  H02M2001/322

    Abstract: Methods and apparatus are provided for discharging a direct current (DC) bus providing power to a motor control circuit in an electric motor system. The method includes the steps of detecting a predetermined discharge signal and generating operational control signals comprising phase currents for dissipating energy from the DC bus through a passive load in response to detecting the predetermined discharge signal, wherein the passive load includes motor windings of an electric motor of the electric motor system. The method also includes the step of providing the operational control signals to the motor control circuit for discharging the DC bus through the motor control circuit and the motor windings of the electric motor.

    Abstract translation: 提供了用于对在电动机系统中的电动机控制电路供电的直流（DC）总线的放电的方法和装置。 该方法包括以下步骤：响应于检测到预定的放电信号，产生包括用于从DC总线通过无源负载消耗能量的相电流的操作控制信号，其中被动负载包括电动机的电动机绕组 的电机系统。 该方法还包括向电动机控制电路提供操作控制信号以通过电动机控制电路和电动机的电动机绕组排放DC总线的步骤。

    METHOD AND SYSTEM FOR OPERATING AN ELECTRIC MOTOR COUPLED TO MULTIPLE POWER SUPPLIES
    35.
    发明申请
    METHOD AND SYSTEM FOR OPERATING AN ELECTRIC MOTOR COUPLED TO MULTIPLE POWER SUPPLIES 有权
    用于操作与多个电源耦合的电动马达的方法和系统

    公开(公告)号：US20090134828A1

    公开(公告)日：2009-05-28

    申请号：US11945368

    申请日：2007-11-27

    Applicant: SIBAPRASAD CHAKRABARTI ,  BRIAN A. WELCHKO ,  SILVA HITI

    Inventor： SIBAPRASAD CHAKRABARTI ,  BRIAN A. WELCHKO ,  SILVA HITI

    IPC: H02P4/00 ,  H02P27/06 ,  B60L11/18

    CPC classification number: H02P27/08 ,  H02P2209/03 ,  Y02T10/7258

    Abstract: Methods and systems are provided for operating an electric motor having at least one winding coupled to first and second power supplies. A torque command for the electric motor is received. A present power reserve for the first and second power supplies is determined based at least in part on the torque command. An operating voltage for the second power supply is determined based on the present power reserve. The operating voltage for the second power supply is applied to the at least one winding. The application of the operating voltage allowing the present power reserve to flow between the first and second power supplies and the motor.

    Abstract translation: 提供了用于操作具有耦合到第一和第二电源的至少一个绕组的电动机的方法和系统。 接收到电动机的转矩指令。 至少部分地基于转矩指令来确定用于第一和第二电源的当前功率储备。 基于当前动力储备来确定第二电源的工作电压。 第二电源的工作电压被施加到至少一个绕组。 施加允许当前功率储备在第一和第二电源和电动机之间流动的工作电压。

    METHOD AND SYSTEM FOR CONVERTING DC POWER TO AC POWER
    36.
    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

    Applicant: Lateef A. Kajouke ,  Brian A. Welchko

    Inventor： Lateef A. Kajouke ,  Brian A. Welchko

    IPC: H02P27/08 ,  H02M7/42

    CPC classification number: H02M7/5387 ,  H02P27/08

    Abstract: 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.

    Abstract translation: 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。

    DOUBLE ENDED INVERTER SYSTEM FOR A VEHICLE HAVING TWO ENERGY SOURCES THAT EXHIBIT DIFFERENT OPERATING CHARACTERISTICS
    38.
    发明申请
    DOUBLE ENDED INVERTER SYSTEM FOR A VEHICLE HAVING TWO ENERGY SOURCES THAT EXHIBIT DIFFERENT OPERATING CHARACTERISTICS 有权
    具有两个能够显示不同操作特性的能源的车辆的双端逆变器系统

    公开(公告)号：US20090033252A1

    公开(公告)日：2009-02-05

    申请号：US12110950

    申请日：2008-04-28

    Applicant: Gregory S. Smith ,  Brian A. Welchko ,  George John ,  Sibaprasad Chakrabrarti ,  Milun Perisic ,  James M. Nagashima

    Inventor： Gregory S. Smith ,  Brian A. Welchko ,  George John ,  Sibaprasad Chakrabrarti ,  Milun Perisic ,  James M. Nagashima

    IPC: H02P4/00 ,  H02P27/06

    CPC classification number: B60L11/1868 ,  B60L2210/40 ,  H02J1/102 ,  H02J2001/008 ,  H02M3/33584 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/7241

    Abstract: A double ended inverter system for an AC electric traction motor of a vehicle is disclosed. The inverter system serves as an interface between two different energy sources having different operating characteristics. The inverter system includes a first energy source having first operating characteristics associated therewith, and a first inverter subsystem coupled to the first energy source and configured to drive the AC electric traction motor. The inverter system also includes a second energy source having second operating characteristics associated therewith, wherein the first operating characteristics and the second operating characteristics are different, and a second inverter subsystem coupled to the second energy source and configured to drive the AC electric traction motor. In addition, the inverter system has a controller coupled to the first inverter subsystem and to the second inverter subsystem. The controller is configured to influence operation of the first inverter subsystem and the second inverter subsystem to manage power transfer among the first energy source, the second energy source, and the AC electric traction motor.

    Abstract translation: 公开了一种用于车辆的交流电力牵引电动机的双端逆变器系统。 逆变器系统用作具有不同操作特性的两个不同能量源之间的接口。 逆变器系统包括具有与其相关联的第一操作特性的第一能量源和耦合到第一能量源并被配置为驱动AC电力牵引电动机的第一逆变器子系统。 逆变器系统还包括具有与其相关联的第二操作特性的第二能量源，其中第一操作特性和第二操作特性不同，以及耦合到第二能量源并被配置为驱动交流电力牵引电动机的第二逆变器子系统。 此外，逆变器系统具有耦合到第一逆变器子系统和第二逆变器子系统的控制器。 控制器被配置为影响第一逆变器子系统和第二逆变器子系统的操作，以管理第一能量源，第二能量源和交流电力牵引电动机之间的功率传递。

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