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公开(公告)号：US12105490B2
公开(公告)日：2024-10-01
申请号：US17492908
申请日：2021-10-04
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Sreenivas Dingari , Angelo D'Aversa , Veselin Skendzic , Chandrasekaran Swaminathan , Greg Rzepka
IPC: G05B19/042 , G06F3/06 , H02H1/00
CPC classification number: G05B19/042 , G06F3/0604 , G06F3/0646 , G06F3/0673 , G05B2219/24215 , G05B2219/2639 , H02H1/0092
Abstract: Systems, devices, and methods include protection functions in an electrical power system. A processing subsystem may include a processor. A memory subsystem may comprise a first memory section and a second memory section. A memory management subsystem may, in a first operational mode, enable memory access between the processor and the first memory section and the second memory section and, in a second operational mode, enable memory access between the processor and only the first memory section.
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Patent Agency Ranking
2.发明公开公开(公告)号：US20230194584A1
公开(公告)日：2023-06-22
申请号：US17645654
申请日：2021-12-22
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Veselin Skendzic , Daniel P. Dwyer , Chandrasekaran Swaminathan
CPC classification number: G01R23/02 , G01R25/00 , G01R19/0015 , G06F1/03
Abstract: A method includes obtaining electrical measurements of an input signal of a power system. The electrical measurements are obtained at a sampling frequency and the input signal is indicative of an operating frequency of the power system. The method includes generating an intermediate signal from the input signal. The intermediate signal has a direct current (DC) component indicative of a magnitude and a phase of the input signal. The method includes filtering the intermediate signal using an adjustable length filter to obtain the magnitude and the phase of the input signal. The length of the adjustable length filter varies based at least in part on a period measurement of the power system.
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公开(公告)号：US20230164220A1
公开(公告)日：2023-05-25
申请号：US17456190
申请日：2021-11-23
Applicant: Schweitzer Engineering Laboratories, Inc
Inventor： Sreenivas Dingari , Veselin Skendzic , Hamza Abubakari , Greg Rzepka , Angelo D'Aversa , Balaji Janarthanan , Chandrasekaran Swaminathan , Jyotsna Samhita Gokavarapu
CPC classification number: H04L67/12 , H02J13/0004 , H02J13/00028
Abstract: The present disclosure relates to systems and methods for processing a stream of messages in an electric power system (EPS). In one embodiment, a system may include a configuration subsystem to receive a plurality of criteria from an operator to identify a subset of the stream of messages for real-time processing. A receiver subsystem may identify the subset of the stream of messages based on at least one criterion from the plurality of criteria. A real-time processing subsystem may receive the subset of the stream of messages from the receiver subsystem, process the stream of messages within a fixed interval of a time of receipt, and update a value based on information in the processed stream of messages. A protective action subsystem may implement a protective action based on information in the processed stream of messages.
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公开(公告)号：US11736569B2
公开(公告)日：2023-08-22
申请号：US17456190
申请日：2021-11-23
Applicant: Schweitzer Engineering Laboratories, Inc
Inventor： Sreenivas Dingari , Veselin Skendzic , Hamza Abubakari , Greg Rzepka , Angelo D'Aversa , Balaji Janarthanan , Chandrasekaran Swaminathan , Jyotsna Samhita Gokavarapu
CPC classification number: H04L67/12 , H02J13/0004 , H02J13/00028
Abstract: The present disclosure relates to systems and methods for processing a stream of messages in an electric power system (EPS). In one embodiment, a system may include a configuration subsystem to receive a plurality of criteria from an operator to identify a subset of the stream of messages for real-time processing. A receiver subsystem may identify the subset of the stream of messages based on at least one criterion from the plurality of criteria. A real-time processing subsystem may receive the subset of the stream of messages from the receiver subsystem, process the stream of messages within a fixed interval of a time of receipt, and update a value based on information in the processed stream of messages. A protective action subsystem may implement a protective action based on information in the processed stream of messages.
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公开(公告)号：US11381084B1
公开(公告)日：2022-07-05
申请号：US17494190
申请日：2021-10-05
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Marcos A. Donolo , Jay Hartshorn , Veselin Skendzic , Chandrasekaran Swaminathan , Vinod K. Yedidi , Angelo D'Aversa , Hang Li , Subhash C. Patel
Abstract: A method includes receiving electrical measurements of an input signal of a power system. The method includes determining an estimated frequency of the power system using a rate of change of phase of the power system and using zero crossings of the power system. Selection between using the rate of change of phase of the power system and using zero crossings of the power system is based on a comparison between an estimated phase angle and a measured phase angle of the power system.
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6.发明授权公开(公告)号：US11906557B2
公开(公告)日：2024-02-20
申请号：US17645654
申请日：2021-12-22
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Veselin Skendzic , Daniel P. Dwyer , Chandrasekaran Swaminathan
CPC classification number: G01R23/02 , G01R19/0015 , G01R25/00 , G06F1/03
Abstract: A method includes obtaining electrical measurements of an input signal of a power system. The electrical measurements are obtained at a sampling frequency and the input signal is indicative of an operating frequency of the power system. The method includes generating an intermediate signal from the input signal. The intermediate signal has a direct current (DC) component indicative of a magnitude and a phase of the input signal. The method includes filtering the intermediate signal using an adjustable length filter to obtain the magnitude and the phase of the input signal. The length of the adjustable length filter varies based at least in part on a period measurement of the power system.
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