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    Three phase inverter with improved loss distribution
    1.
    发明授权
    Three phase inverter with improved loss distribution 有权
    三相逆变器具有改善的损耗分布

    公开(公告)号：US07616466B2

    公开(公告)日：2009-11-10

    申请号：US11853873

    申请日：2007-09-12

    申请人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    发明人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    IPC分类号： H02M7/5387 ,  H02P27/04

    CPC分类号： H02M7/5395

    摘要： An inverter circuit couples a DC voltage source having a primary side and a reference side to an electric motor or other AC machine having multiple electrical phases. An inverter circuit includes switches, diodes and a controller. For each of the electrical phases, a first switch couples the electrical phase to the primary side of the DC voltage source and a second switch couples the electrical phase with the reference side of the DC voltage source. For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive. The controller is coupled to the switching inputs of each of the first and second switches and is configured to provide a control signal thereto, wherein the control signal provided to each switch comprises, in a low frequency mode, a first portion and a second portion, wherein the first portion comprises a first pulse width modulation scheme and the second portion comprises a second pulse width modulation scheme different from the first modulation scheme.

    摘要翻译： 逆变器电路将具有初级侧和参考侧的DC电压源耦合到具有多个电相的电动机或其它AC电机。 逆变器电路包括开关，二极管和控制器。 对于每个电相，第一开关将电相耦合到DC电压源的初级侧，而第二开关将电相与DC电压源的参考侧耦合。 对于第一和第二开关中的每一个，相关联的反并联二极管被配置为当与二极管相关联的开关不活动时提供电路径。 控制器耦合到第一和第二开关中的每一个的开关输入，并且被配置为向其提供控制信号，其中提供给每个开关的控制信号在低频模式下包括第一部分和第二部分， 其中所述第一部分包括第一脉冲宽度调制方案，并且所述第二部分包括不同于所述第一调制方案的第二脉冲宽度调制方案。

    THREE PHASE INVERTER WITH IMPROVED LOSS DISTRIBUTION
    2.
    发明申请
    THREE PHASE INVERTER WITH IMPROVED LOSS DISTRIBUTION 有权
    具有改进的丢失分配的三相逆变器

    公开(公告)号：US20090067203A1

    公开(公告)日：2009-03-12

    申请号：US11853873

    申请日：2007-09-12

    申请人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    发明人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    IPC分类号： H02M7/537 ,  H02M7/44 ,  H02P23/00

    CPC分类号： H02M7/5395

    摘要： An inverter circuit couples a DC voltage source having a primary side and a reference side to an electric motor or other AC machine having multiple electrical phases. An inverter circuit includes switches, diodes and a controller. For each of the electrical phases, a first switch couples the electrical phase to the primary side of the DC voltage source and a second switch couples the electrical phase with the reference side of the DC voltage source. For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive. The controller is coupled to the switching inputs of each of the first and second switches and is configured to provide a control signal thereto, wherein the control signal provided to each switch comprises, in a low frequency mode, a first portion and a second portion, wherein the first portion comprises a first pulse width modulation scheme and the second portion comprises a second pulse width modulation scheme different from the first modulation scheme.

    摘要翻译： 逆变器电路将具有初级侧和参考侧的DC电压源耦合到具有多个电相的电动机或其它AC电机。 逆变器电路包括开关，二极管和控制器。 对于每个电相，第一开关将电相耦合到DC电压源的初级侧，而第二开关将电相与DC电压源的参考侧耦合。 对于第一和第二开关中的每一个，相关联的反并联二极管被配置为当与二极管相关联的开关不活动时提供电路径。 控制器耦合到第一和第二开关中的每一个的开关输入，并且被配置为向其提供控制信号，其中提供给每个开关的控制信号在低频模式下包括第一部分和第二部分， 其中所述第一部分包括第一脉冲宽度调制方案，并且所述第二部分包括不同于所述第一调制方案的第二脉冲宽度调制方案。

    Charging energy sources with a rectifier using double-ended inverter system
    6.
    发明授权
    Charging energy sources with a rectifier using double-ended inverter system 有权
    使用双端逆变器系统的整流器充电能源

    公开(公告)号：US08058830B2

    公开(公告)日：2011-11-15

    申请号：US12136636

    申请日：2008-06-10

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

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

    IPC分类号： H02P1/00

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

    摘要： Systems and methods are provided for charging energy sources with a rectifier using a double-ended inverter system. An apparatus is provided for an electric drive system for a vehicle. The electric drive system comprises an electric motor configured to provide traction power to the vehicle. A first inverter is coupled to the electric motor and is configured to provide alternating current to the electric motor. A first energy source is coupled to the first inverter, wherein the first inverter is configured to provide power flow between the first energy source and the electric motor. A second inverter is coupled to the electric motor and is configured to provide alternating current to the electric motor. A rectifier is coupled to the second inverter and configured to produce a direct current output. The second inverter is configured to provide power from the rectifier to the electric motor.

    摘要翻译： 提供了系统和方法，用于使用双端逆变器系统对整流器充电能量源。 一种用于车辆的电驱动系统的装置。 电驱动系统包括被配置为向车辆提供牵引力的电动马达。 第一逆变器耦合到电动机并且被配置为向电动机提供交流电。 第一能量源耦合到第一逆变器，其中第一逆变器被配置为在第一能量源和电动机之间提供功率流。 第二逆变器耦合到电动机并且被配置为向电动机提供交流电。 整流器耦合到第二反相器并且被配置为产生直流输出。 第二逆变器被配置成从整流器向电动机提供电力。

    Double ended inverter system with an impedance source inverter subsystem
    7.
    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。

    Double-ended inverter system with isolated neutral topology
    8.
    发明授权
    Double-ended inverter system with isolated neutral topology 有权
    具有隔离中性拓扑的双端逆变器系统

    公开(公告)号：US08002056B2

    公开(公告)日：2011-08-23

    申请号：US12106875

    申请日：2008-04-21

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

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

    IPC分类号： H02K1/32 ,  H02K3/24 ,  H02K5/18

    CPC分类号： B60K11/02 ,  B60L11/1861 ,  B60L15/02 ,  Y02T10/645 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705

    摘要： Systems and methods are provided for an inverter system for use in a vehicle having a first energy source and a second energy source. The system comprises a motor having a first set of windings and a second set of windings. The first set of windings is electrically isolated from the second set of windings. The system further comprises a first inverter coupled to the first energy source and adapted to drive the motor, wherein the first set of windings are coupled to the first inverter. The system also comprises a second inverter coupled to the second energy source and adapted to drive the motor, wherein the second set of windings are coupled to the second inverter. A controller is coupled to the first inverter and the second inverter.

    摘要翻译： 提供了一种用于具有第一能量源和第二能量源的车辆中的逆变器系统的系统和方法。 该系统包括具有第一组绕组和第二组绕组的马达。 第一组绕组与第二组绕组电隔离。 该系统还包括耦合到第一能量源并适于驱动电动机的第一逆变器，其中第一组绕组耦合到第一逆变器。 该系统还包括耦合到第二能量源并适于驱动电动机的第二逆变器，其中第二组绕组耦合到第二逆变器。 控制器耦合到第一反相器和第二反相器。

    Double ended inverter system for a vehicle having two energy sources that exhibit different operating characteristics
    10.
    发明授权
    Double ended inverter system for a vehicle having two energy sources that exhibit different operating characteristics 有权
    用于车辆的双端逆变器系统，其具有表现出不同操作特性的两个能量源

    公开(公告)号：US08102142B2

    公开(公告)日：2012-01-24

    申请号：US12110950

    申请日：2008-04-28

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

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

    IPC分类号： H02P27/04

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

    摘要： 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.

    摘要翻译： 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。