Power converter and control method therefor

    公开(公告)号:US11863082B2

    公开(公告)日:2024-01-02

    申请号:US17427807

    申请日:2019-05-06

    Applicant: ABB SCHWEIZ AG

    CPC classification number: H02M5/4585 G01R31/08 H02H3/44 H02M1/325 H02M1/084

    Abstract: A power converter includes a power conversion circuit having a first terminal set and a second terminal set, configured to convert power input via one of the first terminal set and the second terminal set and output the converted power via the other of the first terminal set and the second terminal set; a measurement unit; a controller configured to control the power conversion circuit to generate a voltage/current waveform travelling along the first network with a power supplied by a second power source linked to the second terminal set of the power conversion circuit in response to a condition that a change rate of the measurement of the voltage/current exceeds a threshold; and locate a fault on the first network. The power conversion circuit can be re-used for different modes of operation either for power transmission under normal condition or for fault location under fault condition.

    Reduction of shaft voltage
    132.
    发明授权

    公开(公告)号:US11863027B2

    公开(公告)日:2024-01-02

    申请号:US17450077

    申请日:2021-10-06

    Applicant: ABB Schweiz AG

    Inventor: Kari Tikkanen

    CPC classification number: H02K11/0094 H02K15/0068 H02K11/40 H02P27/04

    Abstract: A rotating electrical machine and a method of manufacturing a rotating electrical machine. The machine including a machine frame, a rotor, a shaft attached to the rotor and bearings supporting the shaft and the rotor in the machine frame. The rotating electrical machine includes further an electrically conducting member having a hole, the electrically conducting member being attached to the frame such that the shaft extends through the hole.

    Visual operator interface for a technical system

    公开(公告)号:US11862006B2

    公开(公告)日:2024-01-02

    申请号:US17400566

    申请日:2021-08-12

    Applicant: ABB Schweiz AG

    Inventor: Veronika Domova

    CPC classification number: G08B29/10 G06F3/013 H04N7/181

    Abstract: A method of controlling a visual operator interface having a plurality of predefined areas, which include one or more monitoring areas configured to display visual elements representing a current state of a technical system. According to the method, it is determined that one of the monitoring areas is to be prioritized; and an incomplete visibility decrease in at least one other area of the visual operator interface is initiated, wherein the prioritized monitoring area is unaffected by the visibility decrease.

    REDUCING TRANSFORMER INRUSH CURRENT
    134.
    发明公开

    公开(公告)号:US20230420932A1

    公开(公告)日:2023-12-28

    申请号:US18337784

    申请日:2023-06-20

    Applicant: ABB Schweiz AG

    CPC classification number: H02H9/002 H02H7/042

    Abstract: A method of operating a switching device in a system. The method includes monitoring a voltage; operating the system at each of a plurality of system configurations; and, for each of the system configurations and a predetermined same opening angle relative to a reference angle of the monitored voltage, determining a suitable closing angle relative to the reference angle and storing information about the determined suitable closing angle in association with the system configuration in a database. The method then includes, determining a system configuration in the system; at the predetermined same opening angle, opening the switching device; from the database, obtaining a closing angle of the determined suitable closing angles, wherein the system configuration with which the obtained closing angle is associated in the database corresponds to the determined system configuration; and at the obtained closing angle, closing the switching device.

    METHOD AND APPARATUS FOR TRAINING MODEL FOR PREDICTING TEMPERATURE RISE OF HEATING ELEMENT IN SWITCHGEAR

    公开(公告)号:US20230418893A1

    公开(公告)日:2023-12-28

    申请号:US18252999

    申请日:2021-01-19

    Applicant: ABB Schweiz AG

    CPC classification number: G06F17/11

    Abstract: A method and an apparatus for training a model for predicting a temperature rise of a heating element in a switchgear. The method includes obtaining a model for predicting the temperature rise. The method also includes obtaining n+1 sets of physical quantities in relation to the heating element, each set of physical quantities being collected at a corresponding one of n+1 time points spaced apart from each other by a time step in a normal operation state of the heating element, each set of physical quantities comprising a current and an actual temperature of the heating element and an ambient temperature. The method includes converting the actual temperature in each set of physical quantities into an actual temperature rise based on the corresponding ambient temperature; and training the model with the current, the actual temperature rise and the ambient temperature to determine the several parameters.

    Brake Device, Drive Unit, and Industrial Device

    公开(公告)号:US20230392656A1

    公开(公告)日:2023-12-07

    申请号:US18250769

    申请日:2020-11-04

    Applicant: ABB Schweiz AG

    Abstract: A brake device including a first device having a shaft; a brake element having a first frictional brake surface and an engageable structure; a second device rotatable relative to the first device about a rotation axis, the second device including a second member having an opening, a second frictional brake surface, and a forcing member pre-tensioned to force the second frictional brake surface against the first frictional brake surface; and an actuator connected to the first device, the actuator including an engaging structure movable between a disengaged position, and an engaged position to brake relative rotation between the first device and the second device about the rotation axis; wherein the shaft is concentric with the rotation axis and passes through the opening.

    Three-phase AC to DC power converter

    公开(公告)号:US11837952B2

    公开(公告)日:2023-12-05

    申请号:US17491544

    申请日:2021-10-01

    Applicant: ABB SCHWEIZ AG

    Abstract: A three-phase alternating current (AC) to direct current (DC) power converter includes a boost power factor correction (PFC) circuit that includes a low frequency diode-based converter, and a PFC inductor and a PFC capacitor connected in series together and in parallel to a PFC output of the converter. The boost PFC circuit further includes either a high frequency PFC diode and a high frequency PFC switch or a plurality of high frequency PFC switches. A Ćuk converter includes a first Ćuk inductor and a Ćuk capacitor, a second Ćuk inductor and a high frequency Ćuk diode, and a transformer having a primary side connected in parallel to the PFC capacitor and a secondary side connected in parallel to the Ćuk capacitor.

    Stator Flux Assistance and Overexcitation for Externally Excited Synchronous Machines

    公开(公告)号:US20230387840A1

    公开(公告)日:2023-11-30

    申请号:US18317589

    申请日:2023-05-15

    Applicant: ABB Schweiz AG

    CPC classification number: H02P9/10 H02P2207/05 H02P21/30

    Abstract: An apparatus for a drive for driving an externally excited synchronous motor. The apparatus includes means for performing the following. The apparatus causes the drive to operate in a primary operating mode for achieving unity power factor. The apparatus monitors stator flux linkage load angle, stator flux linkage and torque references. In response to the stator flux linkage load angle reference, in a steady state, reaching or exceeding a pre-defined maximum allowed stator flux linkage load angle for steady state operation, the apparatus causes the drive to operate in a stator flux assistance operating mode. In the stator flux assistance operating mode, an increased stator flux linkage for allowing operation with the pre-defined maximum allowed stator flux linkage load angle with unity or maximized sub-unity power factor is used as the stator flux linkage reference.

    APPARATUS AND METHOD FOR HANDLING TWISTLOCKS
    139.
    发明公开

    公开(公告)号:US20230382637A1

    公开(公告)日:2023-11-30

    申请号:US18248589

    申请日:2020-11-11

    Applicant: ABB Schweiz AG

    CPC classification number: B65D90/002 B25J5/007 B25J15/0033 B25J19/023

    Abstract: An apparatus and a method for handling twistlocks configured to lock a container onto a vehicle. The apparatus includes a gripper configured to grip one of the twistlocks to be mounted onto or dismounted from a corner fitting of a container. Further, the apparatus has a visual sensor configured to capture a first image of the corner fitting when the vehicle is moving in a twistlock handling station. The apparatus includes a control unit configured to obtain, from the visual sensor, the first image; make some determinations based on the first image; and send a handling position such that the gripper moves to the handling position to handle the one of the twistlocks during the moving of the vehicle.

    GRINDING SANDER
    140.
    发明公开
    GRINDING SANDER 审中-公开

    公开(公告)号:US20230381909A1

    公开(公告)日:2023-11-30

    申请号:US18315826

    申请日:2023-05-11

    Applicant: ABB Schweiz AG

    CPC classification number: B24B7/02 B24B41/002

    Abstract: The present disclosure relates to a grinding sander. The grinding sander includes a sanding plate configured to move in an operation state, and a plurality of limiting members disposed on a surface of the sanding plate to define a plurality of strip-shaped slot areas. Each strip-shaped slot area is configured to allow at least one strip-shaped sandpaper to be correspondingly mounted therein to effect sanding of a surface of an article via the strip-shaped sandpaper under the movement of the sanding plate. The grinding sander of the present disclosure may be used to perform high-quality sanding of a narrow surface of an article.

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