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    DISTRIBUTED CONTROL IN ELECTRIC POWER DELIVERY SYSTEMS
    12.
    发明申请
    DISTRIBUTED CONTROL IN ELECTRIC POWER DELIVERY SYSTEMS 审中-公开

    公开(公告)号：US20190267807A1

    公开(公告)日：2019-08-29

    申请号：US16406501

    申请日：2019-05-08

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Gregary C. Zweigle ,  Ellery A. Blood

    IPC: H02J3/24

    Abstract: This disclosure includes various systems and methods for determining an operating stage based on electrical conditions in electric power delivery systems and identifying a control strategy based upon the operating stage. The control strategy may be selected and customized to avoid or to ameliorate stresses in an electric power delivery system while maintaining the stability of electric power delivery systems. Various embodiments consistent with the present disclosure may include a distributed controller configured receive a plurality of indications of electrical conditions from a plurality of control devices in electrical communication with the electrical power delivery system. The distributed controller may determine an operating stage from among a plurality of operating stages based upon the plurality of indications of electrical conditions. The distributed controller may further identify a control strategy based upon the operating stage. The control strategy may be communicated to and implemented by the plurality of control devices.

    Distributed control in electric power delivery systems
    13.
    发明授权
    Distributed control in electric power delivery systems 有权

    公开(公告)号：US10333312B2

    公开(公告)日：2019-06-25

    申请号：US14303827

    申请日：2014-06-13

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Gregary C. Zweigle ,  Ellery A. Blood

    IPC: H02J4/00 ,  H02J3/24 ,  H02J3/38 ,  H02J13/00

    Abstract: This disclosure includes various systems and methods for determining an operating stage based on electrical conditions in electric power delivery systems and identifying a control strategy based upon the operating stage. The control strategy may be selected and customized to avoid or to ameliorate stresses in an electric power delivery system while maintaining the stability of electric power delivery systems. Various embodiments consistent with the present disclosure may include a distributed controller configured receive a plurality of indications of electrical conditions from a plurality of control devices in electrical communication with the electrical power delivery system. The distributed controller may determine an operating stage from among a plurality of operating stages based upon the plurality of indications of electrical conditions. The distributed controller may further identify a control strategy based upon the operating stage. The control strategy may be communicated to and implemented by the plurality of control devices.

    Manipulation resilient time distribution network
    14.
    发明授权
    Manipulation resilient time distribution network 有权
    操纵弹性时间分配网络

    公开(公告)号：US09400330B2

    公开(公告)日：2016-07-26

    申请号：US13896999

    申请日：2013-05-17

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Shankar V. Achanta ,  Gregary C. Zweigle ,  Christopher R. Huntley

    IPC: G01S19/20 ,  G01S19/21

    CPC classification number: G01S19/20 ,  G01S19/215

    Abstract: Disclosed herein is a system for detecting manipulation of a global time source such as a Global Navigational Satellite System (GNSS) signal and mitigating against such manipulation. A plurality of receivers with geographical diversity receive GNSS signals, and calculate a time signal to be distributed to consuming devices. The receivers also communicate calculated time signals with other receivers. The receivers compare the time signals, and when a difference between the time signals exceeds a predetermined threshold, the receivers indicate that manipulation is likely. Such indication is shared across the network of receivers. The indication is further shared with consuming devices of the time signal from the compromised receiver. A second time signal that is not compromised may be shared with the consuming devices and/or used by the consuming devices. The consuming devices may modify their behavior when in receipt of the indication.

    Abstract translation: 本文公开了一种用于检测诸如全球导航卫星系统（GNSS）信号的全球时间源的操纵的系统，并且可以减轻这种操纵。 具有地理分集的多个接收机接收GNSS信号，并计算要分配给消费设备的时间信号。 接收机还与其他接收机通信计算出的时间信号。 接收器对时间信号进行比较，当时间信号之间的差超过预定阈值时，接收器指示可能进行操作。 这种指示在接收机网络之间共享。 该指示进一步与来自受损接收机的时间信号的消费设备共享。 不损害的第二时间信号可以与消费设备共享和/或由消费设备使用。 消费设备可以在接收到指示时修改其行为。

    Genset engine paralleling controls, devices, systems, and methods
    17.
    发明授权
    Genset engine paralleling controls, devices, systems, and methods 有权

    公开(公告)号：US11146193B2

    公开(公告)日：2021-10-12

    申请号：US17068414

    申请日：2020-10-12

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Scott M. Manson ,  Ellery A. Blood ,  Gregary C. Zweigle

    IPC: H02P9/10 ,  H02P9/04 ,  F02D31/00 ,  F02B63/04 ,  H02P101/25

    Abstract: A device to control a genset engine may use multiple feedback loops to provide a fast stable response to load changes. An outer feedback loop may receive frequency measurements and power measurements of a genset engine and determine a dispatch adjustment comprising a frequency setpoint based on the frequency measurements and power measurements. A middle feedback loop may comprise a double deadband droop filter that periodically generates a pulse based on the frequency setpoint and the power measurements. The middle feedback loop may update an inner loop setpoint based on the pulse. An inner feedback loop may alter a target fuel valve reference of the genset engine based on the inner loop setpoint generated by the second controller and a fuel valve droop.

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