公开(公告)号：US20230068739A1

公开(公告)日：2023-03-02

申请号：US17822024

申请日：2022-08-24

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan ,  Gregary C. Zweigle ,  Jared Kyle Bestebreur

IPC: G01R25/00 ,  H02J13/00 ,  G06F3/14

Abstract: Techniques and apparatus presented herein are directed toward monitoring an electric power delivery system to detect and locate a power generation event. A power generation event may include a tripped generator, a loss of a transmission line, or other loss of power generation. To detect the event, an analysis engine may receive and monitor input data. A detection signal may be generated based on the input data. Upon detecting the event, the analysis engine may determine a source and propagation of the event through the delivery system. Based on the source and propagation of the event, the analysis engine may determine the location of the event. The analysis engine may generate an overlay with the input data to provide the location and other information about the event to a user such that remedial action can be taken to resolve the event and restore the lost power generation.

公开(公告)号：US12088481B2

公开(公告)日：2024-09-10

申请号：US17383049

申请日：2021-07-22

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan ,  Riley Grant Huddleston ,  Eric J. Hewitt

IPC: H04L43/045 ,  G06F3/04847

CPC classification number: H04L43/045 ,  G06F3/04847

Abstract: Systems, methods, and devices are provided for dynamically generating a histogram for viewing via a user interface. Embodiments presented herein provide apparatus and techniques for generating a histogram and adjusting a view of the histogram without the computations being perceived by a user. To do so, histogram indices may be computed for various time intervals (e.g., minutes, hours, days, etc.) of input data. The indices may be used to generate a histogram for a time interval that may be larger than the interval used to compute the histogram indices. At the time period for the histogram displayed via the user interface is changed by the user, a dynamic histogram builder computes an adjusted histogram using histogram indices for the updated and/or changed time period. Embodiments herein provide techniques which reduce the time to compute the histogram and consume less computing resources to do so.

公开(公告)号：US20230022715A1

公开(公告)日：2023-01-26

申请号：US17383049

申请日：2021-07-22

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan ,  Riley Grant Huddleston ,  Eric J. Hewitt

IPC: H04L12/26

Abstract: Systems, methods, and devices are provided for dynamically generating a histogram for viewing via a user interface. Embodiments presented herein provide apparatus and techniques for generating a histogram and adjusting a view of the histogram without the computations being perceived by a user. To do so, histogram indices may be computed for various time intervals (e.g., minutes, hours, days, etc.) of input data. The indices may be used to generate a histogram for a time interval that may be larger than the interval used to compute the histogram indices. At the time period for the histogram displayed via the user interface is changed by the user, a dynamic histogram builder computes an adjusted histogram using histogram indices for the updated and/or changed time period. Embodiments herein provide techniques which reduce the time to compute the histogram and consume less computing resources to do so.

公开(公告)号：US11899517B2

公开(公告)日：2024-02-13

申请号：US17822023

申请日：2022-08-24

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan ,  Gregary C. Zweigle ,  Jared Kyle Bestebreur

IPC: G06F1/3218 ,  H03H17/04 ,  H02J13/00 ,  G01R25/00 ,  G06F3/14 ,  H03H17/00

CPC classification number: G06F1/3218 ,  G01R25/00 ,  G06F3/14 ,  H02J13/00002 ,  H03H17/04 ,  H03H2017/009

Abstract: Techniques and apparatus presented herein are directed toward monitoring an electric power delivery system to detect and locate a power generation event. A power generation event may include a tripped generator, a loss of a transmission line, or other loss of power generation. To detect the event, an analysis engine may receive and monitor input data. A detection signal may be generated based on the input data. Upon detecting the event, the analysis engine may determine a source and propagation of the event through the delivery system. Based on the source and propagation of the event, the analysis engine may determine the location of the event. The analysis engine may generate an overlay with the input data to provide the location and other information about the event to a user such that remedial action can be taken to resolve the event and restore the lost power generation.

公开(公告)号：US20230060977A1

公开(公告)日：2023-03-02

申请号：US17822023

申请日：2022-08-24

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan ,  Gregary C. Zweigle ,  Jared Kyle Bestebreur

IPC: G06F1/3218 ,  H03H17/04

Abstract: Techniques and apparatus presented herein are directed toward monitoring an electric power delivery system to detect and locate a power generation event. A power generation event may include a tripped generator, a loss of a transmission line, or other loss of power generation. To detect the event, an analysis engine may receive and monitor input data. A detection signal may be generated based on the input data. Upon detecting the event, the analysis engine may determine a source and propagation of the event through the delivery system. Based on the source and propagation of the event, the analysis engine may determine the location of the event. The analysis engine may generate an overlay with the input data to provide the location and other information about the event to a user such that remedial action can be taken to resolve the event and restore the lost power generation.

公开(公告)号：US11927610B2

公开(公告)日：2024-03-12

申请号：US17378249

申请日：2021-07-16

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan ,  Riley Grant Huddleston ,  Gregary C. Zweigle

IPC: G01R19/25 ,  G01R21/133

CPC classification number: G01R19/2513 ,  G01R21/133

Abstract: A system includes a processor operatively coupled to memory. The processor performs operations that include obtaining electrical measurements of a power system. The processor determines a scaled energy value of a first set of the electrical measurements that are scaled with respect to a second set of electrical measurements. The processor determines that a potential ringdown event occurred by comparing the scaled energy value to a threshold energy value. The processor determines that the potential ringdown event is a confirmed ringdown event by comparing a scaled error value to a threshold error value. The processor generates one or more mode estimates from the confirmed ringdown event.

公开(公告)号：US20230069041A1

公开(公告)日：2023-03-02

申请号：US17809666

申请日：2022-06-29

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan

IPC: G01R31/62 ,  H02J3/00 ,  H02J13/00 ,  G01R19/165

Abstract: Methods and devices are provide for determining a failure in a potential transformer and identifying a phase of the potential transformer exhibiting failure. The failures may be incipient failures. Detecting the failure may include determining voltage magnitudes and angles; determining phase-errors; determining phase-phase errors; and determining an uncorrelated phase using the phase-phase errors. The devices and methods may provide an alarm or indication of the phase exhibiting the potential transformer failures. Post processing may be performed to optimize the time and amount of provided alarms or indications. The voltage angles and magnitudes may be provided by the potential transformers being monitored.

公开(公告)号：US20230015611A1

公开(公告)日：2023-01-19

申请号：US17378249

申请日：2021-07-16

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Md Arif Khan ,  Riley Grant Huddleston ,  Gregary C. Zweigle

IPC: G01R19/25 ,  G01R21/133

Abstract: A system includes a processor operatively coupled to memory. The processor performs operations that include obtaining electrical measurements of a power system. The processor determines a scaled energy value of a first set of the electrical measurements that are scaled with respect to a second set of electrical measurements. The processor determines that a potential ringdown event occurred by comparing the scaled energy value to a threshold energy value. The processor determines that the potential ringdown event is a confirmed ringdown event by comparing a scaled error value to a threshold error value. The processor generates one or more mode estimates from the confirmed ringdown event.