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    FILTER SYSTEMS FOR REDUCING BEARING CURRENT IN HIGH-FREQUENCY MOTOR CONTROL SYSTEMS
    2.
    发明申请
    FILTER SYSTEMS FOR REDUCING BEARING CURRENT IN HIGH-FREQUENCY MOTOR CONTROL SYSTEMS 审中-公开

    公开(公告)号：US20190273429A1

    公开(公告)日：2019-09-05

    申请号：US15911835

    申请日：2018-03-05

    Applicant: Regal Beloit America, Inc.

    Inventor： Ming Li ,  Roger Carlos Becerra

    IPC: H02M1/12 ,  H02P29/50 ,  H01F27/26 ,  H02H9/00 ,  G01R19/25 ,  H02M1/44 ,  F16C32/04

    Abstract: A motor controller and methods for operating a motor are described herein. The motor controller includes a high-frequency (HF) inverter having a direct current (DC) input stage and an alternating current (AC) output stage, the HF inverter operable at a switching frequency to generate a three-phase output having a fundamental frequency. The motor controller also includes a differential mode (DM) filter coupled in series with the output stage of the HF inverter and having a resonant frequency less than 10% of the switching frequency, the DM filter configured to reduce harmonic components of the three-phase output and generate a first filtered output. The motor controller further includes a common mode (CM) filter coupled in series with the DM filter, the CM filter configured to filter the first filtered output to generate a second filtered output having a reduced CM voltage to operate the electric motor with a reduced bearing current.

    Methods and systems for reducing conducted electromagnetic interference
    3.
    发明授权
    Methods and systems for reducing conducted electromagnetic interference 有权

    公开(公告)号：US10193488B2

    公开(公告)日：2019-01-29

    申请号：US14995418

    申请日：2016-01-14

    Applicant: Regal Beloit America, Inc.

    Inventor： Ming Li ,  Joseph Carnes ,  Roger Carlos Becerra

    IPC: H02P27/04 ,  H02P27/06 ,  H02M1/44 ,  H02P29/50

    Abstract: An EMI filter is described that includes an input having first and second input terminals, and an output having first and second output terminals. A first conductive path is defined between the first input and output terminals, and a second conductive path is defined between the second input and output terminals. The EMI filter also includes a first choke device coupled across the first and second conductive paths, and a first Y capacitor including a first end and a second end opposite the first end, the first end coupled to the first conductive path downstream from the first choke device. The EMI filter further includes a second Y capacitor including a first end and a second end opposite the first end, the first end coupled to the second conductive path downstream from the first choke device, and a second choke device coupled to an inverter output.

    METHODS AND SYSTEMS FOR REDUCING CONDUCTED ELECTROMAGNETIC INTERFERENCE
    5.
    发明申请
    METHODS AND SYSTEMS FOR REDUCING CONDUCTED ELECTROMAGNETIC INTERFERENCE 审中-公开

    公开(公告)号：US20170207763A1

    公开(公告)日：2017-07-20

    申请号：US14995418

    申请日：2016-01-14

    Applicant: Regal Beloit America, Inc.

    Inventor： Ming Li ,  Joseph Carnes ,  Roger Carlos Becerra

    IPC: H03H1/00 ,  H02P27/04 ,  H03H7/01

    CPC classification number: H02P27/06 ,  H02M1/44 ,  H02P29/50

    Abstract: An EMI filter is described that includes an input having first and second input terminals, and an output having first and second output terminals. A first conductive path is defined between the first input and output terminals, and a second conductive path is defined between the second input and output terminals. The EMI filter also includes a first choke device coupled across the first and second conductive paths, and a first Y capacitor including a first end and a second end opposite the first end, the first end coupled to the first conductive path downstream from the first choke device. The EMI filter further includes a second Y capacitor including a first end and a second end opposite the first end, the first end coupled to the second conductive path downstream from the first choke device, and a second choke device coupled to an inverter output.

    Floating ground assembly for electric motor control assembly
    7.
    发明授权
    Floating ground assembly for electric motor control assembly 有权

    公开(公告)号：US10250177B2

    公开(公告)日：2019-04-02

    申请号：US15602858

    申请日：2017-05-23

    Applicant: REGAL BELOIT AMERICA, INC.

    Inventor： Ming Li ,  Roger Carlos Becerra

    IPC: H02P27/06 ,  H02K11/33 ,  H02K11/40 ,  H02K5/22 ,  H02K15/00 ,  H02M1/084 ,  H02M5/458

    Abstract: A ground assembly includes a first layer, a second layer, and a bypass capacitor. The first layer includes a power ground, a communication ground spaced from the power ground, a conductive path defining a parasitic inductance and electrically coupled between the power ground and the communication ground, and an electrically insulating layer. At least a portion of the insulating layer is positioned between the power and communication grounds. The second layer includes a first substrate that is spaced from the power ground to define a first parasitic capacitance therebetween and is spaced from the communication ground to define a second parasitic capacitance therebetween. The bypass capacitor is electrically coupled between the power ground and the first substrate.

    SYSTEMS AND METHODS FOR WIRELESSLY COMMUNICATING WITHIN ELECTRIC MOTOR SYSTEMS
    9.
    发明申请
    SYSTEMS AND METHODS FOR WIRELESSLY COMMUNICATING WITHIN ELECTRIC MOTOR SYSTEMS 有权

    公开(公告)号：US20210092497A1

    公开(公告)日：2021-03-25

    申请号：US17117600

    申请日：2020-12-10

    Applicant: Regal Beloit America, Inc.

    Inventor： Ming Li ,  Roger Carlos Becerra

    IPC: H04Q9/00 ,  H02K11/33 ,  H02K11/35 ,  F24F11/30 ,  F24F11/62 ,  F24F11/49

    Abstract: An electric motor communication system for use with a fluid moving system and using at least one wireless sensor network is provided. The electric motor communication system includes an electric motor that includes a motor management device configured to transmit and receive input signals via the wireless sensor network, and a processing device coupled to said motor management device and configured to control said electric motor based at least in part on input signals received at said motor management device. The electric motor communication system also includes at least one external device configured to collect data and to transmit said input signals, via the wireless sensor network, to said electric motor.

    Motor controller, drive circuit, and methods for combined electric motor control
    10.
    发明授权
    Motor controller, drive circuit, and methods for combined electric motor control 有权

    公开(公告)号：US10411619B2

    公开(公告)日：2019-09-10

    申请号：US14838722

    申请日：2015-08-28

    Applicant: REGAL BELOIT AMERICA, INC.

    Inventor： Ming Li ,  Roger Carlos Becerra ,  Ludovic Andre Chretien

    IPC: H02P27/06 ,  H02P5/74 ,  H02P23/26 ,  H02P29/50

    Abstract: An electric motor controller, an electric motor drive circuit, and methods for combined electric motor control are provided. The drive circuit is configured to drive a first electric motor and a second electric motor. The drive circuit includes a rectifier configured to convert an AC input voltage to a pulsed DC voltage, and a first DC link electrically coupled to the rectifier. The first DC-link includes a low-capacitance capacitor having a capacitance less than 10 μF. The drive circuit also includes a first inverter coupled to the first DC-link, the first inverter configured to generate a conditioned output voltage to drive the first electric motor, a second DC-link electrically coupled to the first DC-link, and a second inverter coupled to the second DC-link. The second inverter is configured to generate a conditioned output voltage to drive the second electric motor.

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