Patents by Inventor Arun Shrestha
Arun Shrestha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11973680Abstract: Systems and methods described herein monitor real-time digital data for degradation. A merging unit may measure electrical parameters in an electric power system using a sensor component and may generate a stream of digital data representing measured electrical parameters. The merging unit may transmit the stream of digital data representing measured electrical parameters and receive a plurality of data frames using an interface. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination of whether a subset of the plurality of data frames satisfies the plurality of digital metrics, and the subset of the plurality of data frames fails at least one of the plurality of digital metrics. The merging unit may implement a response when the subset of the plurality of data frames fails at least one of the plurality of digital metrics.Type: GrantFiled: February 9, 2023Date of Patent: April 30, 2024Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Derek Lautenschlager, Arun Shrestha, Nishchal Sharma, Vinodev E. Rajasekaran, Karthi Sellakkannu, Sajal Harmukh
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Publication number: 20240118330Abstract: A method and a system are used to analyze incremental quantities. The electrical measurements associated with a loop in a multiple-phase electric power delivery system are obtained before a fault occurred on the loop and after the fault occurred on the loop, and differences between the electrical measurements are used to determine incremental quantities. The incremental quantities are used to determine a location of the fault on the loop. Multiple loops in the multiple-phase electric power delivery system may be monitored to determine corresponding fault locations on each loop.Type: ApplicationFiled: October 4, 2022Publication date: April 11, 2024Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Arun Shrestha, Sathish Kumar Mutha, Brian A. Smyth
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Publication number: 20230179505Abstract: Systems and methods described herein monitor real-time digital data for degradation. A merging unit may measure electrical parameters in an electric power system using a sensor component and may generate a stream of digital data representing measured electrical parameters. The merging unit may transmit the stream of digital data representing measured electrical parameters and receive a plurality of data frames using an interface. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination of whether a subset of the plurality of data frames satisfies the plurality of digital metrics, and the subset of the plurality of data frames fails at least one of the plurality of digital metrics. The merging unit may implement a response when the subset of the plurality of data frames fails at least one of the plurality of digital metrics.Type: ApplicationFiled: February 9, 2023Publication date: June 8, 2023Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Derek Lautenschlager, Arun Shrestha, Nishchal Sharma, Vinodev E. Rajasekaran, Karthi Sellakkannu, Sajal Harmukh
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Patent number: 11652846Abstract: An intelligent electronic device (IED) of an electric power distribution system includes processing circuitry and a memory that includes a tangible, non-transitory, computer-readable comprising instructions. The instructions, when executed by the processing circuitry, are configured to cause the processing circuitry to receive operating data associated with the electric power distribution system, determine whether the operating data matches with expected operating data, generate a connectivity association key (CAK) based on the operating data in response to a determination that the operating data matches with the expected operating data, and establishing a connectivity association based on the CAK.Type: GrantFiled: July 8, 2022Date of Patent: May 16, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Ryan Bradetich, Colin Gordon, Arun Shrestha, Karen S J Wyszczelski, Hidayatullah Ahsan
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Patent number: 11606281Abstract: Systems and methods are disclosed to monitor real-time digital data for degradation. In one embodiment, an intelligent electronic device (“IED”) in an electric power system may include an interface to receive a stream of digital data, the stream of digital data comprising a plurality of data frames. A protective action subsystem may monitor the sampled digital data and implement a protective action based on the stream of sampled digital data. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination regarding degradation of a communication channel based on whether the plurality of digital metrics fails at least one threshold. In response to the determination, the digital data degradation detection subsystem may implement a response to the determination that the plurality of digital metrics fails at least one threshold.Type: GrantFiled: May 20, 2021Date of Patent: March 14, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Bharat Nalla, Nishchal Sharma, Arun Shrestha, Ozan Akyildiz, Mauricio G. Silveira, Manodev J. Rajasekaran, Sajal Harmukh, Jaya R A K Yellajosula
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Patent number: 11550285Abstract: Systems, methods, and devices are provided for determining a maintenance mode of one or more merging units of an electric power delivery system using an intelligent electronic device that may rely on communication from wired (or wireless) electrical measurement devices. The intelligent electronic device may be a line relay. The merging units may provide data to the line relay including at least one bit indicating a maintenance mode of each merging unit. If a maintenance mode bit from a particular merging unit indicates that the merging unit is in the maintenance mode, logic of the line relay may determine if a maintenance mode override is received. If so, the line relay may disregard the maintenance mode bit and process the data from the merging unit. If the logic determines that the merging unit is in the maintenance mode, the line relay may force data from the merging unit to zero.Type: GrantFiled: June 30, 2021Date of Patent: January 10, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Arun Shrestha, Karen S J Wyszczelski, Priyanka Nadkar, Bharat Nalla, Sathish Kumar Mutha
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Publication number: 20230004131Abstract: Systems, methods, and devices are provided for determining a maintenance mode of one or more merging units of an electric power delivery system using an intelligent electronic device that may rely on communication from wired (or wireless) electrical measurement devices. The intelligent electronic device may be a line relay. The merging units may provide data to the line relay including at least one bit indicating a maintenance mode of each merging unit. If a maintenance mode bit from a particular merging unit indicates that the merging unit is in the maintenance mode, logic of the line relay may determine if a maintenance mode override is received. If so, the line relay may disregard the maintenance mode bit and process the data from the merging unit. If the logic determines that the merging unit is in the maintenance mode, the line relay may force data from the merging unit to zero.Type: ApplicationFiled: June 30, 2021Publication date: January 5, 2023Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Arun Shrestha, Karen SJ Wyszczelski, Priyanka Nadkar, Bharat Nalla, Sathish Kumar Mutha
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Publication number: 20220377003Abstract: Systems and methods are disclosed to monitor real-time digital data for degradation. In one embodiment, an intelligent electronic device (“IED”) in an electric power system may include an interface to receive a stream of digital data, the stream of digital data comprising a plurality of data frames. A protective action subsystem may monitor the sampled digital data and implement a protective action based on the stream of sampled digital data. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination regarding degradation of a communication channel based on whether the plurality of digital metrics fails at least one threshold. In response to the determination, the digital data degradation detection subsystem may implement a response to the determination that the plurality of digital metrics fails at least one threshold.Type: ApplicationFiled: May 20, 2021Publication date: November 24, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Bharat Nalla, Nishchal Sharma, Arun Shrestha, Ozan Akyildiz, Mauricio G. Silveira, Manodev J. Rajasekaran, Sajal Harmukh, Jaya R A K Yellajosula
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Publication number: 20220345488Abstract: An intelligent electronic device (IED) of an electric power distribution system includes processing circuitry and a memory that includes a tangible, non-transitory, computer-readable comprising instructions. The instructions, when executed by the processing circuitry, are configured to cause the processing circuitry to receive operating data associated with the electric power distribution system, determine whether the operating data matches with expected operating data, generate a connectivity association key (CAK) based on the operating data in response to a determination that the operating data matches with the expected operating data, and establishing a connectivity association based on the CAK.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Ryan Bradetich, Colin Gordon, Arun Shrestha, Karen SJ Wyszczelski, Hidayatullah Ahsan
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Publication number: 20220294823Abstract: An intelligent electronic device (IED) of an electric power distribution system includes processing circuitry and a memory that includes a tangible, non-transitory, computer-readable comprising instructions. The instructions, when executed by the processing circuitry, are configured to cause the processing circuitry to receive operating data associated with the electric power distribution system, determine whether the operating data matches with expected operating data, generate a connectivity association key (CAK) based on the operating data in response to a determination that the operating data matches with the expected operating data, and establishing a connectivity association based on the CAK.Type: ApplicationFiled: March 15, 2021Publication date: September 15, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Ryan Bradetich, Colin Gordon, Arun Shrestha, Karen SJ Wyszczelski, Hidayatullah Ahsan
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Patent number: 11425167Abstract: An intelligent electronic device (IED) of an electric power distribution system includes processing circuitry and a memory that includes a tangible, non-transitory, computer-readable comprising instructions. The instructions, when executed by the processing circuitry, are configured to cause the processing circuitry to receive operating data associated with the electric power distribution system, determine whether the operating data matches with expected operating data, generate a connectivity association key (CAK) based on the operating data in response to a determination that the operating data matches with the expected operating data, and establishing a connectivity association based on the CAK.Type: GrantFiled: March 15, 2021Date of Patent: August 23, 2022Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Ryan Bradetich, Colin Gordon, Arun Shrestha, Karen S J Wyszczelski, Hidayatullah Ahsan
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Patent number: 11411609Abstract: The present disclosure pertains to systems and methods to share data in a point-to-point system. In one embodiment, a system to share point-to-point information may be used in an electric power system, and the system may include a communication interface to communicate using a point-to-point protocol using at least a first port and a second port. A point-to-point information sharing subsystem may receive an indication that point-to-point information received on the first port is to be shared on the second port and may configure the second port to share point-to-point information received on the first port. In some embodiments, a delay associated with the communication link may be added to the shared point-to-point information prior to transmission.Type: GrantFiled: August 11, 2021Date of Patent: August 9, 2022Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Arun Shrestha, Ozan Akyildiz, Manodev J. Rajasekaran