公开(公告)号：US10270859B2

公开(公告)日：2019-04-23

申请号：US15295839

申请日：2016-10-17

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang ,  Normann Fischer

IPC: H02H7/00 ,  H04L29/08 ,  G01D9/00 ,  H02H1/00 ,  H02J13/00

Abstract: The present disclosure provides systems and methods for generating a system-wide event report for electrical power delivery systems. A monitoring device within the power system may generate a key message upon the occurrence of a predetermined condition. A master IED within the power system may generate and/or transmit a system-wide key message to a plurality of monitoring IEDs within the power system. Digital process bus data, continuously recorded by a plurality of monitoring IEDs within the power system, may be saved locally by each monitoring IED within the power system and retrieved by a master IED within the power system. Alternatively, digital process bus data may be transmitted to a master IED and saved locally. A software and/or hardware module may be used to merge the local reports into a system-wide event report.

公开(公告)号：US10859611B2

公开(公告)日：2020-12-08

申请号：US15988170

申请日：2018-05-24

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang ,  Manodev J. Rajasekaran ,  Edgar B. Cenzon

IPC: G01R19/25 ,  G01R19/145 ,  G01R19/252 ,  H02J3/00 ,  H02J13/00

Abstract: Disclosed herein are systems and methods of calculating and mitigating time delays for electric power system samples received by remote data acquisition unit (RDAU), digitized, and transmitted to a receiving intelligent electronic device (IED). The IED may calculate time delays for various RDAUs, and establish wait windows for certain protection operations based on the samples needed for the protection operation and the calculated time delays for the various RDAUs. The IED may detect and report system or time signal anomalies based on changes to the calculated time delays from particular RDAUs.

公开(公告)号：US20180348267A1

公开(公告)日：2018-12-06

申请号：US15988170

申请日：2018-05-24

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang ,  Manodev J. Rajasekaran ,  Edgar B. Cenzon

IPC: G01R19/25 ,  G01R19/252 ,  G01R19/145

Abstract: Disclosed herein are systems and methods of calculating and mitigating time delays for electric power system samples received by remote data acquisition unit (RDAU), digitized, and transmitted to a receiving intelligent electronic device (IED). The IED may calculate time delays for various RDAUs, and establish wait windows for certain protection operations based on the samples needed for the protection operation and the calculated time delays for the various RDAUs. The IED may detect and report system or time signal anomalies based on changes to the calculated time delays from particular RDAUs.

公开(公告)号：US10379991B2

公开(公告)日：2019-08-13

申请号：US15711898

申请日：2017-09-21

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang ,  Normann Fischer

IPC: G06F11/34 ,  H04L12/721 ,  H04L12/24 ,  H04L12/707 ,  H04L12/26

Abstract: Systems and Methods are disclosed for providing measurement data redundancy to intelligent electronic devices (IEDs) in an electric power system, without additional redundant components. In various embodiments, a first measurement device obtains measurement data from a first portion of the electric power delivery system. A second measurement device obtains measurement data from a second portion of the electric power delivery system. A first IED monitors the first portion of the electric power delivery system based on measurement data associated with the first portion of the electric power delivery system, and a second IED monitors the second portion of the electric power delivery system based on measurement data associated with the second portion of the electric power delivery system. Assuming the first and second portions are coordinated, a communication system dynamically routes measurement data from the second measurement device to the first IED upon a failure of receiving digital measurements from the first measurement device.

公开(公告)号：US20190149446A1

公开(公告)日：2019-05-16

申请号：US16224468

申请日：2018-12-18

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang

IPC: H04L12/26 ,  H04B1/74 ,  G06F11/20

CPC classification number: H04L43/16 ,  G06F11/2007 ,  H04B1/74 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L61/6022

Abstract: The disclosure includes systems and methods for the analysis, comparison, and selection between multiple redundant data streams. The data streams may be analyzed, compared, and/or selected based on the individual number of consecutive data frame losses in a data stream, the number of channel noise errors over a time period in a data stream, the clock synchronization values associated with a data stream, the traversal time of a data stream, and/or a MAC address associated with a data stream.

公开(公告)号：US10205647B2

公开(公告)日：2019-02-12

申请号：US15417059

申请日：2017-01-26

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang

IPC: H04L12/26 ,  H04B1/74 ,  G06F11/20 ,  H04L29/12

Abstract: The disclosure includes systems and methods for the analysis, comparison, and selection between multiple redundant data streams. The data streams may be analyzed, compared, and/or selected based on the individual number of consecutive data frame losses in a data stream, the number of channel noise errors over a time period in a data stream, the clock synchronization values associated with a data stream, the traversal time of a data stream, and/or a MAC address associated with a data stream.

公开(公告)号：US20180212858A1

公开(公告)日：2018-07-26

申请号：US15417059

申请日：2017-01-26

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang

IPC: H04L12/26

CPC classification number: H04L43/16 ,  G06F11/2007 ,  H04B1/74 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L61/6022

Abstract: The disclosure includes systems and methods for the analysis, comparison, and selection between multiple redundant data streams. The data streams may be analyzed, compared, and/or selected based on the individual number of consecutive data frame losses in a data stream, the number of channel noise errors over a time period in a data stream, the clock synchronization values associated with a data stream, the traversal time of a data stream, and/or a MAC address associated with a data stream.

公开(公告)号：US10797985B2

公开(公告)日：2020-10-06

申请号：US16224468

申请日：2018-12-18

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang

IPC: H04L12/26 ,  H04B1/74 ,  G06F11/20 ,  H04L29/12

Abstract: The disclosure includes systems and methods for the analysis, comparison, and selection between multiple redundant data streams. The data streams may be analyzed, compared, and/or selected based on the individual number of consecutive data frame losses in a data stream, the number of channel noise errors over a time period in a data stream, the clock synchronization values associated with a data stream, the traversal time of a data stream, and/or a MAC address associated with a data stream.

公开(公告)号：US20180109114A1

公开(公告)日：2018-04-19

申请号：US15295839

申请日：2016-10-17

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang ,  Normann Fischer

IPC: H02J4/00 ,  H04L29/08 ,  H02J13/00

CPC classification number: H04L67/12 ,  G01D9/00 ,  H02H1/0053 ,  H02J13/0006 ,  Y02E60/724 ,  Y02E60/74 ,  Y04S10/18 ,  Y04S10/30

Abstract: The present disclosure provides systems and methods for generating a system-wide event report for electrical power delivery systems. A monitoring device within the power system may generate a key message upon the occurrence of a predetermined condition. A master IED within the power system may generate and/or transmit a system-wide key message to a plurality of monitoring IEDs within the power system. Digital process bus data, continuously recorded by a plurality of monitoring IEDs within the power system, may be saved locally by each monitoring IED within the power system and retrieved by a master IED within the power system. Alternatively, digital process bus data may be transmitted to a master IED and saved locally. A software and/or hardware module may be used to merge the local reports into a system-wide event report.

公开(公告)号：US20180089057A1

公开(公告)日：2018-03-29

申请号：US15711898

申请日：2017-09-21

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Qiaoyin Yang ,  Normann Fischer

IPC: G06F11/34 ,  H04L12/707 ,  H04L12/24 ,  H04L12/721

CPC classification number: G06F11/3495 ,  G01R19/2513 ,  H04L41/046 ,  H04L41/0627 ,  H04L41/0668 ,  H04L43/0823 ,  H04L45/22 ,  H04L45/70 ,  Y04S40/166 ,  Y04S40/168

Abstract: Systems and Methods are disclosed for providing measurement data redundancy to intelligent electronic devices (IEDs) in an electric power system, without additional redundant components. In various embodiments, a first measurement device obtains measurement data from a first portion of the electric power delivery system. A second measurement device obtains measurement data from a second portion of the electric power delivery system. A first IED monitors the first portion of the electric power delivery system based on measurement data associated with the first portion of the electric power delivery system, and a second IED monitors the second portion of the electric power delivery system based on measurement data associated with the second portion of the electric power delivery system. Assuming the first and second portions are coordinated, a communication system dynamically routes measurement data from the second measurement device to the first IED upon a failure of receiving digital measurements from the first measurement device.