Fault clearing in midpoint grounded systems

    公开(公告)号:US12081014B2

    公开(公告)日:2024-09-03

    申请号:US17132521

    申请日:2020-12-23

    IPC分类号: H02H7/06 G01R31/50 H02H3/16

    CPC分类号: H02H7/06 G01R31/50 H02H3/16

    摘要: A power supply system to provide power to a load connected between first and second connectors. The system includes a generator that produces an alternating current generator output and a rectifier that receives the alternating current generator output and converts it into a direct current output and provides the direct current (DC) output between the first and second connectors. The system also includes a filter connected to the rectifier and between the connectors and that smooths the DC output. The filter includes a midpoint configured to be connected to ground. The system also includes a fault clearing source connected to the first connector that provides a clearing voltage to the first connector when a ground fault occurs on the first connector.

    SYSTEM AND METHOD FOR PREDICTION ANALYSIS OF A SYSTEM UTILIZING MACHINE LEARNING NETWORKS

    公开(公告)号:US20240110996A1

    公开(公告)日:2024-04-04

    申请号:US17957574

    申请日:2022-09-30

    申请人: Robert Bosch GmbH

    IPC分类号: G01R31/50 G06F17/14 G06N3/04

    摘要: A computer-implemented method includes receiving a combination recorded signals indicating current, voltage, vibrational, and sound information associated with a test device, generating a training data set utilizing the signals, wherein the training data set is sent to a machine learning model, and in response to meeting a convergence threshold of the machine learning model, outputting a trained model that outputs a prediction using the recorded signals from the combination. The prediction indicates a predicted signal characteristic. The method also includes comparing the prediction and signal associated with the test device to identify a prediction error associated with the device, and outputting a prediction analysis indicating information associated with at least the prediction error. The prediction analysis includes information indicative of a relationship between the device and its signals.

    Commissioning Measuring Devices
    7.
    发明公开

    公开(公告)号:US20240085494A1

    公开(公告)日:2024-03-14

    申请号:US18260918

    申请日:2021-11-23

    IPC分类号: G01R31/50 G01R19/25

    CPC分类号: G01R31/50 G01R19/2513

    摘要: Various embodiments of the disclosure include methods for testing measuring devices n for resources of an energy system assigned to a common measuring device. The method may include: acquiring a measurement signal Pn(t) by way of each of the measuring devices n; acquiring a sum signal PPCC(t) by way of the common measuring device; providing an objective function Z, which defines a difference between the acquired sum signal PPCC(t) and a modeled sum signal {circumflex over (P)}PCC(t), wherein the modeled sum signal {circumflex over (P)}PCC(t) is formed by way of the acquired measurement signals Pn(t) and a respective scaling factor Sn; and computing the values of the scaling factors Sn by extremizing the objective function Z. The test includes determining an error with one of the measuring devices n through a deviation of the computed value of the associated scaling factor Sn from a value defined for the respective measuring device n.