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    System and method for managing DC link switching harmonics
    4.
    发明授权
    System and method for managing DC link switching harmonics 有权
    用于管理直流链路切换谐波的系统和方法

    公开(公告)号：US09270210B2

    公开(公告)日：2016-02-23

    申请号：US14300396

    申请日：2014-06-10

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Mark A. Gries ,  Mark R. Cooper ,  Rangarajan Tallam ,  Garrett B. Rodrigues

    IPC: H02P5/74 ,  H02P29/02 ,  H02M1/15 ,  H02M5/458 ,  H02M1/00 ,  G01R31/42 ,  G01R19/25

    CPC classification number: H02P5/74 ,  G01R19/2509 ,  G01R19/2513 ,  G01R23/20 ,  G01R31/42 ,  H02M1/15 ,  H02M5/4585 ,  H02M2001/008

    Abstract: A distributed motor drive system includes a power management module and multiple inverter modules integrated with the motors and located on a machine or process remote from the power management module. The power management module distributes DC voltage and command signals to each of the inverters, where the DC voltage is distributed between modules via a DC link cable. The integrated inverters execute switching routines to convert the DC voltage to an AC voltage suitable for controlling the motor. Each of the power management module and the inverters includes a portion of the DC bus. The current on the DC link cable is monitored and general bus utilization as well as overload conditions are reported.

    Abstract translation: 分布式电动机驱动系统包括电源管理模块和与电动机集成的位于远离电源管理模块的机器或处理器上的多个逆变器模块。 电源管理模块将直流电压和指令信号分配给每个逆变器，其中直流电压通过直流链路电缆分布在模块之间。 集成逆变器执行切换程序，将直流电压转换成适合于控制电机的交流电压。 每个电源管理模块和逆变器包括DC总线的一部分。 监控直流链路电缆上的电流，并报告总线利用率以及过载条件。

    System and Method for Managing DC Link Switching Harmonics
    5.
    发明申请
    System and Method for Managing DC Link Switching Harmonics 有权
    用于管理DC链路切换谐波的系统和方法

    公开(公告)号：US20140285120A1

    公开(公告)日：2014-09-25

    申请号：US14300396

    申请日：2014-06-10

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Mark A. Gries ,  Mark R. Cooper ,  Rangarajan Tallam ,  Garrett B. Rodrigues

    IPC: H02P5/74

    CPC classification number: H02P5/74 ,  G01R19/2509 ,  G01R19/2513 ,  G01R23/20 ,  G01R31/42 ,  H02M1/15 ,  H02M5/4585 ,  H02M2001/008

    Abstract: A distributed motor drive system includes a power management module and multiple inverter modules integrated with the motors and located on a machine or process remote from the power management module. The power management module distributes DC voltage and command signals to each of the inverters, where the DC voltage is distributed between modules via a DC link cable. The integrated inverters execute switching routines to convert the DC voltage to an AC voltage suitable for controlling the motor. Each of the power management module and the inverters includes a portion of the DC bus. The current on the DC link cable is monitored and general bus utilization as well as overload conditions are reported.

    Abstract translation: 分布式电动机驱动系统包括电源管理模块和与电动机集成的位于远离电源管理模块的机器或处理器上的多个逆变器模块。 电源管理模块将直流电压和指令信号分配给每个逆变器，其中直流电压通过直流链路电缆分布在模块之间。 集成逆变器执行切换程序，将直流电压转换成适合于控制电机的交流电压。 每个电源管理模块和逆变器包括DC总线的一部分。 监控直流链路电缆上的电流，并报告总线利用率以及过载条件。

    PRECHARGING APPARATUS AND POWER CONVERTER
    8.
    发明申请
    PRECHARGING APPARATUS AND POWER CONVERTER 有权
    预置装置和功率转换器

    公开(公告)号：US20160204709A1

    公开(公告)日：2016-07-14

    申请号：US14596351

    申请日：2015-01-14

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Yogesh P. Patel ,  Rangarajan Tallam ,  Brian P. Brown ,  Jiangang Hu ,  James J. Campbell

    IPC: H02M5/44

    CPC classification number: H02M5/44 ,  H02H9/001 ,  H02H9/002 ,  H02M7/125 ,  H02M2001/123

    Abstract: Precharging systems and methods are presented for precharging a DC bus circuit in a power conversion system, in which precharging current is connected through a precharging resistance coupled between only a single AC input line and the DC bus circuit when the DC bus voltage is less than a non-zero threshold, and a controller individually activates controllable rectifier switching devices when the DC bus voltages greater than or equal to the threshold using DC gating or pulse width modulation to selectively provide a bypass path around the precharging resistance for normal load currents in the power conversion system.

    Abstract translation: 提出了预充电系统和方法，用于对电力转换系统中的直流总线电路进行预充电，其中当直流母线电压小于一个时，预充电电流通过仅在单个AC输入线和直流总线电路之间耦合的预充电电阻来连接 非零阈值，并且当DC总线电压大于或等于阈值时，控制器单独激活可控整流器开关器件，使用DC门控或脉冲宽度调制，以选择性地为电源中的正常负载电流提供围绕预充电电阻的旁路 转换系统

    AC DRIVE SCR AND RELAY PRECHARGING APPARATUS
    9.
    发明申请
    AC DRIVE SCR AND RELAY PRECHARGING APPARATUS 审中-公开
    交流驱动控制器和继电器预放装置

    公开(公告)号：US20160172992A1

    公开(公告)日：2016-06-16

    申请号：US14571436

    申请日：2014-12-16

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Rangarajan Tallam ,  Doyle F. Busse ,  Alia Rebecca Strandt

    IPC: H02M5/458

    CPC classification number: H02M7/062 ,  H02M1/36

    Abstract: Power converters are presented having a precharging resistance and a normally closed precharging switch with a controller to limit inrush current during precharging of a DC bus circuit capacitance while preventing operation of rectifier switching devices until the DC bus voltage reaches a threshold value, and then to open the precharging switch and allow selective operation of the rectifier switching devices, with a second capacitance coupled across a rectifier output to mitigate rectifier output voltage spikes due to common mode currents flowing through a DC link choke, and additional capacitors coupled between positive and negative rectifier output terminals and ground to limit the rectifier output terminal voltages with respect to ground.

    Abstract translation: 具有预充电电阻的电源转换器和具有控制器的常闭预充电开关，以在DC总线电路电容预充电期间限制浪涌电流，同时防止整流器开关器件的工作直到直流母线电压达到阈值，然后打开 预充电开关并且允许整流器开关器件的选择性操作，其中跨过整流器输出耦合的第二电容以减轻由于流过直流链路扼流圈的共模电流引起的整流器输出电压尖峰以及耦合在正整流器输出和负整流器输出之间的附加电容器 端子和接地以限制整流器输出端电压相对于地。

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