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    FIRE RISK MITIGATION IN ELECTRIC POWER SYSTEMS
    11.
    发明申请
    FIRE RISK MITIGATION IN ELECTRIC POWER SYSTEMS 有权

    公开(公告)号：US20210265834A1

    公开(公告)日：2021-08-26

    申请号：US16800062

    申请日：2020-02-25

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Austin Edward Wade ,  Krishnanjan Gubba Ravikumar

    IPC: H02H7/26 ,  G08C19/00 ,  G01R19/165 ,  G01P13/00 ,  G01P15/00 ,  G01N33/00 ,  G01R31/08 ,  H02H1/00

    Abstract: Systems and methods may mitigate risk of fire caused by an electric power system. In one embodiment, a system may include an intelligent electronic device (IED). The IED includes a communication subsystem to receive a signal from a sensor related to a condition of the electric conductor. A processing subsystem in communication with the communication subsystem may operate in at least two modes comprising a high security mode and a fire prevention mode. In the fire prevention mode, the IED may interrupt a flow of electric current based on the signal from the at least one sensor associated with the electric conductor. In the high security mode, the system may interrupt a flow of electric current based on the signal from the at least one sensor associated with the electric conductor and based on a second condition relating to the electric conductor.

    INTEGRATION OF PRIMARY PROTECTION RELAYS FOR ELECTRIC POWER DELIVERY SYSTEMS
    16.
    发明申请
    INTEGRATION OF PRIMARY PROTECTION RELAYS FOR ELECTRIC POWER DELIVERY SYSTEMS 有权

    公开(公告)号：US20210057901A1

    公开(公告)日：2021-02-25

    申请号：US16831128

    申请日：2020-03-26

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Edmund O. Schweitzer, III ,  David E. Whitehead ,  Krishnanjan Gubba Ravikumar ,  Austin Edward Wade

    IPC: H02H1/00 ,  G08B29/06

    Abstract: Systems and methods for facilitating selected communications among primary protection relays using a supervisory system with a configurable input/output (IO) map. Primary protection relays may obtain signals from equipment associated with an electric power delivery system and provide primary protection without need for communication. The primary protection relays may communicate a unique identifier as well as signal values, states, and commands to the supervisory system. The supervisory system may route specifically identified communications among primary protection relays in accordance with a configurable IO map by transmitting selected portions of the communications on a port associated with the receiving primary protection relay. The primary protection relays may perform secondary protection and other operations using the communicated information.

    Transient simulation modeling for dynamic remedial action schemes using real-time protection setting updates
    17.
    发明授权
    Transient simulation modeling for dynamic remedial action schemes using real-time protection setting updates 有权

    公开(公告)号：US10333301B2

    公开(公告)日：2019-06-25

    申请号：US15587179

    申请日：2017-05-04

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Krishnanjan Gubba Ravikumar

    IPC: G05D3/12 ,  H02J3/00 ,  H02J13/00 ,  G05B17/02

    Abstract: Protective IEDs in an electrical power system, such as distributed controllers, may periodically or in real-time communicate updated protection settings to a wide-area controller, such as a coordination controller, that defines and/or implements a remedial action scheme to protect the electrical power system. The wide-area controller may utilize real-time protection setting information from a plurality of protective IEDs to perform dynamic transient model simulations based on (1) the current topology of the power system, (2) real-time measurements from the system, and (3) the updated, real-time protection settings of various IEDs within the system. The results of the updated transient model simulations may be used to dynamically adjust the remedial actions scheme of the wide-area controller.

    DETERMINING STATUS OF ELECTRIC POWER TRANSMISSION LINES IN AN ELECTRIC POWER TRANSMISSION SYSTEM
    19.
    发明申请
    DETERMINING STATUS OF ELECTRIC POWER TRANSMISSION LINES IN AN ELECTRIC POWER TRANSMISSION SYSTEM 审中-公开

    公开(公告)号：US20170108542A1

    公开(公告)日：2017-04-20

    申请号：US15393618

    申请日：2016-12-29

    Applicant: Schweitzer Engineering Laboratories, Inc.

    Inventor： Krishnanjan Gubba Ravikumar ,  Ashish Upreti ,  Bharath Nayak ,  Yusuf Zafer Korkmaz

    IPC: G01R31/02

    Abstract: The present application discloses systems and methods to determine loss of at least one electric power transmission line in an electric power transmission system. In various embodiments, a system consistent with the present disclosure may include an electrical parameter monitoring subsystem configured to receive electrical parameter measurements and to determine a change of the electrical measurements. An analysis subsystem may determine whether a change in the electrical measurements is indicative of loss of at least one transmission line and may calculate a number of transmission lines lost based on the change. In some embodiments, a remedial action subsystem may be configured to implement a remedial action in response to loss of at least one transmission line. The number of transmission lines lost may be determined based on an angle difference ratio and a power ratio between two buses in electrical transmission system.

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