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    METHOD AND APPARATUS TO MITIGATE DC BUS OVER-VOLTAGES ON COMMON AC BUS SYSTEMS UTILIZING DC & AC DRIVES
    1.
    发明申请
    METHOD AND APPARATUS TO MITIGATE DC BUS OVER-VOLTAGES ON COMMON AC BUS SYSTEMS UTILIZING DC & AC DRIVES 有权

    公开(公告)号：US20220216800A1

    公开(公告)日：2022-07-07

    申请号：US17701543

    申请日：2022-03-22

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Gary L. Skibinski ,  Zhijun Liu

    IPC: H02M5/458 ,  H03H7/06 ,  H02P23/00

    Abstract: A line interface filter apparatus to couple a drive or group of drives to a shared multiphase AC bus, including individual phase circuits having an inductor coupled between a respective bus and drive phase lines, a tapped resistor coupled to the respective drive phase line, and a capacitor coupled between the resistor and a common connection of the capacitors of the individual phase circuits, where the capacitance of the capacitors is 5 to 15 times a per-phase equivalent capacitance of the drive or group of drives, and the resistance of the resistors is two times a damping ratio times a square root of a ratio of the filter inductance to the filter capacitance, where the damping ratio ζ is greater than or equal to 1.0 and less than or equal to 2.0.

    METHOD AND APPARATUS TO MITIGATE DC BUS OVER-VOLTAGES ON COMMON AC BUS SYSTEMS UTILIZING DC & AC DRIVES
    2.
    发明申请
    METHOD AND APPARATUS TO MITIGATE DC BUS OVER-VOLTAGES ON COMMON AC BUS SYSTEMS UTILIZING DC & AC DRIVES 有权

    公开(公告)号：US20220103086A1

    公开(公告)日：2022-03-31

    申请号：US17037979

    申请日：2020-09-30

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Zhijun Liu ,  Gary L. Skibinski

    IPC: H02M5/458 ,  H03H7/06 ,  H02P23/00

    Abstract: A method and line interface filter apparatus to couple a drive or group of drives to a shared multiphase AC bus, including individual phase circuits having an inductor coupled between a respective bus and drive phase lines, a resistor coupled to the respective drive phase line, and a capacitor coupled between the resistor and a common connection of the capacitors of the individual phase circuits, where the capacitance of the capacitors is 5 to 15 times a per-phase equivalent capacitance of the drive or group of drives, and the resistance of the resistors is two times a damping ratio times a square root of a ratio of the filter inductance to the filter capacitance, where the damping ratio is greater than or equal to 1.0 and less than or equal to 2.0.

    System and Method for Reducing Power Losses for Magnetics Integrated in a Printed Circuit Board
    3.
    发明申请
    System and Method for Reducing Power Losses for Magnetics Integrated in a Printed Circuit Board 审中-公开

    公开(公告)号：US20200350111A1

    公开(公告)日：2020-11-05

    申请号：US16398486

    申请日：2019-04-30

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Gennadi Sizov ,  Zoran Vrankovic ,  Gary L. Skibinski

    IPC: H01F27/28 ,  H01F27/34 ,  H05K1/18 ,  H02M1/12

    Abstract: A system and method for integrating a magnetic component within a power converter includes a coil integrated on a PCB. The PCB includes multiple layers and traces on each layer to form a single coil or to form multiple coils on the magnetic component. The PCB further includes at least one opening in the PCB through which a core component may pass, such that the magnetic component is defined by the coils and the core material. To reduce eddy currents built up within the traces, the dimensions of traces on a layer are varied and the position of traces between layers of the PCB are varied. The widths and locations of individual traces are selected to reduce coupling of the trace to leakage fluxes within the magnetic component. A floating conductive layer may also be provided to still further reduce the magnitude of eddy currents induced within the coil.

    Method and apparatus to mitigate DC bus over-voltages on common AC bus systems utilizing DC and AC drives
    4.
    发明授权
    Method and apparatus to mitigate DC bus over-voltages on common AC bus systems utilizing DC and AC drives 有权

    公开(公告)号：US11342861B2

    公开(公告)日：2022-05-24

    申请号：US17037979

    申请日：2020-09-30

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Zhijun Liu ,  Gary L. Skibinski

    IPC: H02M5/458 ,  H02P23/00 ,  H03H7/06

    Abstract: A method and line interface filter apparatus to couple a drive or group of drives to a shared multiphase AC bus, including individual phase circuits having an inductor coupled between a respective bus and drive phase lines, a resistor coupled to the respective drive phase line, and a capacitor coupled between the resistor and a common connection of the capacitors of the individual phase circuits, where the capacitance of the capacitors is 5 to 15 times a per-phase equivalent capacitance of the drive or group of drives, and the resistance of the resistors is two times a damping ratio times a square root of a ratio of the filter inductance to the filter capacitance, where the damping ratio is greater than or equal to 1.0 and less than or equal to 2.0.

    THERMAL WELL FOR TRANSFORMER AND METHODS
    6.
    发明申请
    THERMAL WELL FOR TRANSFORMER AND METHODS 审中-公开
    变压器和方法的热井

    公开(公告)号：US20160069750A1

    公开(公告)日：2016-03-10

    申请号：US14710000

    申请日：2015-05-12

    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    Inventor： Jeffrey R. Annis ,  Gary L. Skibinski

    IPC: G01K7/00 ,  G01K1/08 ,  H01F27/40 ,  G01K13/00

    CPC classification number: G01K7/00 ,  G01K1/08 ,  G01K13/00 ,  H01F27/402 ,  H01F2027/406

    Abstract: A thermal well temperature monitoring assembly with high dielectric strength capability is disclosed consisting of a low relative dielectric constant material in a continuous structure that does not have any air voids or pockets. The low relative dielectric constant structure of the thermal well has at least one internal cavity having an end region. A thermal sensor is at least partially located within the at least one internal cavity. The thermal sensor has one or more wires extending out of the end region of the internal cavity. A first low relative dielectric constant potting material encapsulates at least a portion of the thermal sensor within the internal cavity to remove air voids that decrease dielectric strength. A second low relative dielectric constant potting material fills at least a portion of the end region of the internal cavity to provide mechanical ruggedness and environmental sealing.

    Abstract translation: 公开了一种具有高绝缘强度能力的热井温度监测组件，其由不具有任何气隙或凹穴的连续结构中的低相对介电常数材料组成。 热阱的低相对介电常数结构具有至少一个具有端部区域的内腔。 热传感器至少部分地位于至少一个内部空腔内。 热传感器具有从内腔的端部区域延伸出的一条或多条线。 第一低相对介电常数灌封材料将内部空腔内的热传感器的至少一部分封装，以去除降低绝缘强度的气隙。 第二低相对介电常数灌封材料填充内腔的端部区域的至少一部分以提供机械坚固性和环境密封。

    Hybrid Cable for Reducing Common Mode Noise in a Distributed DC Bus System
    7.
    发明申请
    Hybrid Cable for Reducing Common Mode Noise in a Distributed DC Bus System 有权

    公开(公告)号：US20250118935A1

    公开(公告)日：2025-04-10

    申请号：US18483332

    申请日：2023-10-09

    Applicant: Rockwell Automation Technologies, Inc.

    Inventor： Zoran Vrankovic ,  Gary L. Skibinski ,  Sooraj Kv ,  Adam M. Shea

    IPC: H01R13/6592 ,  H01R13/6591 ,  H01R13/66

    Abstract: A cable for reducing electrical noise within a distributed motor drive system includes an insulating jacket defining an outer periphery of the cable. The insulating jacket extends between a first end and a second end of the cable. At least one power conductor and a ground conductor extend between the first and second ends of the cable. A communication cable also extends between the first and second ends of the cable. The communication cable includes a second jacket having an outer surface and an inner surface, where the outer surface of the second jacket defines an outer periphery of the communication cable. At least one pair of communication conductors and a braided shield extend within the communication cable. The braided shield is positioned around the communication conductors and is electrically connected to the ground conductor at the first and second ends of the cable.

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