公开(公告)号：US10680547B2

公开(公告)日：2020-06-09

申请号：US16033321

申请日：2018-07-12

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Yuan Xiao ,  Ye Zhang ,  Ehsan Al-Nabi ,  Richard L. Piekarz

IPC: H02P27/08 ,  H02P29/50 ,  H02M1/44 ,  H03H7/06 ,  H02M5/458

Abstract: The disclosed examples provide an easy and low-loss solution to reduce voltage stress on motor and cable in inverter-fed motor systems by suppressing resonances on the motor cable with apparatus coupled between the inverter output and the motor cable. Disclosed examples include various methods to mitigate voltage stress on both motor and cable, including an output filter circuit with a cable side parallel RL circuit between an inverter output and a motor cable, and an inverter to provide an inverter output signal to the output filter circuit to drive a load through the motor cable, where the cable side parallel RL circuit includes a resistor coupled in series between the inverter output and the motor cable, and an inductor connected in parallel with the resistor.

公开(公告)号：US20200021234A1

公开(公告)日：2020-01-16

申请号：US16033321

申请日：2018-07-12

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Yuan Xiao ,  Ye Zhang ,  Ehsan Al-Nabi ,  Richard L. Piekarz

IPC: H02P29/50 ,  H02P27/08 ,  H03H7/06 ,  H02M1/44

Abstract: The disclosed examples provide an easy and low-loss solution to reduce voltage stress on motor and cable in inverter-fed motor systems by suppressing resonances on the motor cable with apparatus coupled between the inverter output and the motor cable. Disclosed examples include various methods to mitigate voltage stress on both motor and cable, including an output filter circuit with a cable side parallel RL circuit between an inverter output and a motor cable, and an inverter to provide an inverter output signal to the output filter circuit to drive a load through the motor cable, where the cable side parallel RL circuit includes a resistor coupled in series between the inverter output and the motor cable, and an inductor connected in parallel with the resistor.

公开(公告)号：US10217555B2

公开(公告)日：2019-02-26

申请号：US14972588

申请日：2015-12-17

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Xikai Sun ,  Wei Qian ,  Shaofeng Zhang ,  Haihui Lu ,  Lixiang Wei ,  Yuan Xiao ,  Jiangang Hu ,  Richard A. Lukaszewski

IPC: H01F27/28 ,  H01F27/08 ,  H01F3/10 ,  H01F27/30

Abstract: For reducing volume requirements and magnetic flux leakage, a compact inductor includes a first planar core with a first core thickness along a first axis orthogonal to a plane of the first planar core. In addition, the inductor includes a second planar core disposed parallel to the first planar core with a second core thickness along the first axis. The inductor further includes a plurality of electrical windings disposed between and adjacent to an inside plane of the first planar core and an inside plane of the second planar core. The electrical windings may include insulated electrical wires. No magnetic teeth may be disposed between the first planar core and the second planar core. The first axis is parallel to a magnetic axis of each electrical winding.

公开(公告)号：US09912221B2

公开(公告)日：2018-03-06

申请号：US15227407

申请日：2016-08-03

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Yuan Xiao ,  Lixiang Wei ,  Zhongyuan Cheng

IPC: H02M1/10 ,  H02M7/49 ,  H02M1/32 ,  H02M5/458 ,  H02M1/00

CPC classification number: H02M1/10 ,  H02M1/32 ,  H02M5/458 ,  H02M5/4585 ,  H02M7/49 ,  H02M2001/007 ,  H02M2001/325 ,  Y10T307/549 ,  Y10T307/658 ,  Y10T307/685

Abstract: Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single relay or contactor includes first and second normally closed output control contacts coupled between a given power cell switching circuit and the given power cell output, along with a normally open bypass contact coupled across the power stage output, with a local or central controller energizing the coil of the relay or contactor of a given cell to bypass that cell.

公开(公告)号：US20160344278A1

公开(公告)日：2016-11-24

申请号：US15227407

申请日：2016-08-03

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Yuan Xiao ,  Lixiang Wei ,  Zhongyuan Cheng

IPC: H02M1/10 ,  H02M5/458

CPC classification number: H02M1/10 ,  H02M1/32 ,  H02M5/458 ,  H02M5/4585 ,  H02M7/49 ,  H02M2001/007 ,  H02M2001/325 ,  Y10T307/549 ,  Y10T307/658 ,  Y10T307/685

Abstract: Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single relay or contactor includes first and second normally closed output control contacts coupled between a given power cell switching circuit and the given power cell output, along with a normally open bypass contact coupled across the power stage output, with a local or central controller energizing the coil of the relay or contactor of a given cell to bypass that cell.

Abstract translation: 提出了多电平功率转换器，功率单元和方法，用于选择性地绕过多电平逆变器电路的功率级，其中单个继电器或接触器包括耦合在给定功率单元开关电路和给定功率之间的第一和第二常闭输出控制触点 电池输出以及耦合在功率级输出端的常开旁路触点与本地或中央控制器通电给定电池的继电器或接触器的线圈绕过该电池。

公开(公告)号：US20190214899A1

公开(公告)日：2019-07-11

申请号：US16353506

申请日：2019-03-14

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Yuan Xiao ,  Lixiang Wei ,  Zhongyuan Cheng

IPC: H02M1/10 ,  H02M1/32 ,  H02M7/49 ,  H02M5/458

Abstract: Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single relay or contactor includes first and second normally closed output control contacts coupled between a given power cell switching circuit and the given power cell output, along with a normally open bypass contact coupled across the power stage output, with a local or central controller energizing the coil of the relay or contactor of a given cell to bypass that cell.

公开(公告)号：US10305368B2

公开(公告)日：2019-05-28

申请号：US15876812

申请日：2018-01-22

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Yuan Xiao ,  Lixiang Wei ,  Zhongyuan Cheng

IPC: H02M1/10 ,  H02M5/45 ,  H02M1/32 ,  H02M7/49 ,  H02M5/458 ,  H02M1/00

Abstract: Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single relay or contactor includes first and second normally closed output control contacts coupled between a given power cell switching circuit and the given power cell output, along with a normally open bypass contact coupled across the power stage output, with a local or central controller energizing the coil of the relay or contactor of a given cell to bypass that cell.

公开(公告)号：US09425705B2

公开(公告)日：2016-08-23

申请号：US14628334

申请日：2015-02-23

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Navid R. Zargari ,  Yuan Xiao ,  Lixiang Wei ,  Zhongyuan Cheng

IPC: H02M7/49 ,  H02M1/32 ,  H02M5/458

CPC classification number: H02M1/10 ,  H02M1/32 ,  H02M5/458 ,  H02M5/4585 ,  H02M7/49 ,  H02M2001/007 ,  H02M2001/325 ,  Y10T307/549 ,  Y10T307/658 ,  Y10T307/685

Abstract: Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single relay or contactor includes one or more normally closed output control contacts coupled between a given power cell switching circuit and the given power cell output, along with a normally open bypass contact coupled across the power stage output, with a local or central controller energizing the coil of the relay or contactor of a given cell to bypass that cell.

Abstract translation: 提出了多电平功率转换器，功率单元和方法，用于选择性地旁路多电平逆变器电路的功率级，其中单个继电器或接触器包括耦合在给定功率单元开关电路和给定功率之间的一个或多个常闭输出控制触点 电池输出以及耦合在功率级输出端的常开旁路触点与本地或中央控制器通电给定电池的继电器或接触器的线圈绕过该电池。

公开(公告)号：US20160111967A1

公开(公告)日：2016-04-21

申请号：US14978571

申请日：2015-12-22

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Lixiang Wei ,  Yuan Xiao ,  Haihui Lu ,  Douglas B. Weber

IPC: H02M5/458

CPC classification number: H02M5/458 ,  H02M7/49 ,  H02M2001/325

Abstract: Multilevel inverters, power cells and bypass methods are presented in which a power cell switching circuit is selectively disconnected from the power cell output, and a bypass which is closed to connect first and second cell output terminals to selectively bypass a power stage of a multilevel inverter, with an optional AC input switch to selectively disconnect the AC input from the power cell switching circuit during bypass.

Abstract translation: 提出了多电平逆变器，功率单元和旁路方法，其中功率单元开关电路与功率单元输出选择性地断开，并且闭合的旁路连接第一和第二单元输出端子以选择性地旁路多电平逆变器的功率级 具有可选的AC输入开关，用于在旁路期间选择性地断开AC电源与电源开关电路的输入。

公开(公告)号：US20140132295A1

公开(公告)日：2014-05-15

申请号：US14159258

申请日：2014-01-20

Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

Inventor： Yuan Xiao ,  Lixiang Wei ,  Doyle F. Busse

IPC: G01R31/28 ,  H02M1/42

CPC classification number: G01R31/2843 ,  G01R31/42 ,  H02H7/0811 ,  H02H7/1203 ,  H02H7/16 ,  H02J3/1821 ,  H02J3/26 ,  H02M1/42 ,  H02M5/458 ,  H02P29/0241 ,  Y02E40/30 ,  Y02E40/50

Abstract: The present techniques include methods and systems for detecting a failure in a capacitor bank of an electrical drive system. Embodiments include using discharge resistors to discharge capacitors in the capacitor bank, forming a neutral node of the capacitor bank. In different capacitor configurations, the neutral node is measured, and the voltage is analyzed to determine whether a capacitor bank unbalance has occurred. In some embodiments, the node is a neutral-to-neutral node between the discharged side of the discharge resistors and a neutral side of the capacitor bank, or between the discharged side of the discharge resistors and a discharged side of a second set of discharge resistors. In some embodiments, the node is a neutral-to-ground node between the discharged side of the discharge resistors and a ground potential.

Abstract translation: 本技术包括用于检测电驱动系统的电容器组中的故障的方法和系统。 实施例包括使用放电电阻器对电容器组中的电容器进行放电，形成电容器组的中性点。 在不同的电容器配置中，测量中性点，并分析电压以确定电容器组是否发生不平衡。 在一些实施例中，节点是放电电阻器的放电侧和电容器组的中性侧之间或放电电阻器的放电侧和第二组放电的放电侧之间的中性点至中性节点 电阻 在一些实施例中，节点是放电电阻器的放电侧和接地电位之间的中性点对地节点。