Patents by Inventor Ellery A. Blood
Ellery A. Blood 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: 11828805Abstract: A condition-based monitoring system receives a plurality of measurements from sensors measuring mechanical and electrical aspects of a prime mover and a synchronous machine. The condition-based monitoring system determines a correlation between the mechanical measurements and electrical measurements to estimate parameters of the model. The condition-based monitoring system also updates the model as sensors obtain additional measurements during operation of the prime mover.Type: GrantFiled: May 13, 2021Date of Patent: November 28, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
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Patent number: 11777426Abstract: A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets, perform post-processing actions on the energy packets to generate processed energy packets, and convert the processed energy packets into a fuel valve reference. Post-processing may include a calibration correction to remove measurement artifacts.Type: GrantFiled: February 21, 2022Date of Patent: October 3, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Scott M. Manson, Ellery A. Blood
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Publication number: 20230268857Abstract: A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets, perform post-processing actions on the energy packets to generate processed energy packets, and convert the processed energy packets into a fuel valve reference. Post-processing may include a calibration correction to remove measurement artifacts.Type: ApplicationFiled: February 21, 2022Publication date: August 24, 2023Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Scott M. Manson, Ellery A. Blood
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Patent number: 11686265Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.Type: GrantFiled: January 6, 2022Date of Patent: June 27, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Ellery A. Blood, Scott M. Manson
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Publication number: 20220407311Abstract: This disclosure discusses systems, methods, and techniques for producing and utilizing a capability region of one or more monitored equipment. To do so, an intelligent electronic device (IED) may access a data set of one or more known performance characteristics of the monitored equipment. The known performance characteristics are based on, or dependent of, one or more variables. The IED may also access a constraint library with geometric primitives. Then, the IED may analyze the data set and may produce the capability region using the geometric primitive. The IED may compare an operating point of the monitored equipment to the capability region of the monitored equipment. Based on the comparison, the IED may implement a control action.Type: ApplicationFiled: April 29, 2022Publication date: December 22, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Ellery A. Blood, Scott M. Manson
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Publication number: 20220365137Abstract: A condition-based monitoring system receives a plurality of measurements from sensors measuring mechanical and electrical aspects of a prime mover and a synchronous machine. The condition-based monitoring system determines a correlation between the mechanical measurements and electrical measurements to estimate parameters of the model. The condition-based monitoring system also updates the model as sensors obtain additional measurements during operation of the prime mover.Type: ApplicationFiled: May 13, 2021Publication date: November 17, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
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Patent number: 11467197Abstract: Electric power system voltage control and voltage stability may be calculated using energy packets. Sets of negative energy packet sets normalized by a set of positive and negative energy packet sets may be used for voltage control by adding or removing capacitive units. Energy packet voltage indicators may be calculated using energy packets, and used to determine voltage stability. Control actions may be taken depending on the determined voltage stability.Type: GrantFiled: May 5, 2021Date of Patent: October 11, 2022Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood
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Publication number: 20220128014Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.Type: ApplicationFiled: January 6, 2022Publication date: April 28, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Ellery A. Blood, Scott M. Manson
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Patent number: 11261813Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.Type: GrantFiled: January 13, 2021Date of Patent: March 1, 2022Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Ellery A. Blood, Scott M. Manson
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Patent number: 11169211Abstract: A frequency tracking system may use shaft speed and electrical frequency to estimate a frequency of a monitored machine. The frequency tracking system may convert shaft speed to a mechanical frequency and blend the electrical frequency and the mechanical frequency together to determine an estimated frequency. The frequency tracking system may blend the frequencies based on an operating state of the monitored machine and the frequency sensors.Type: GrantFiled: October 14, 2019Date of Patent: November 9, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
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Patent number: 11146193Abstract: A device to control a genset engine may use multiple feedback loops to provide a fast stable response to load changes. An outer feedback loop may receive frequency measurements and power measurements of a genset engine and determine a dispatch adjustment comprising a frequency setpoint based on the frequency measurements and power measurements. A middle feedback loop may comprise a double deadband droop filter that periodically generates a pulse based on the frequency setpoint and the power measurements. The middle feedback loop may update an inner loop setpoint based on the pulse. An inner feedback loop may alter a target fuel valve reference of the genset engine based on the inner loop setpoint generated by the second controller and a fuel valve droop.Type: GrantFiled: October 12, 2020Date of Patent: October 12, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
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Publication number: 20210278447Abstract: Electric power system voltage control and voltage stability may be calculated using energy packets. Sets of negative energy packet sets normalized by a set of positive and negative energy packet sets may be used for voltage control by adding or removing capacitive units. Energy packet voltage indicators may be calculated using energy packets, and used to determine voltage stability. Control actions may be taken depending on the determined voltage stability.Type: ApplicationFiled: May 5, 2021Publication date: September 9, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood
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Patent number: 11035891Abstract: Electric power system voltage control and voltage stability may be calculated using energy packets. Sets of negative energy packet sets normalized by a set of positive and negative energy packet sets may be used for voltage control by adding or removing capacitive units. Energy packet voltage indicators may be calculated using energy packets, and used to determine voltage stability. Control actions may be taken depending on the determined voltage stability.Type: GrantFiled: March 6, 2020Date of Patent: June 15, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood
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Patent number: 11012016Abstract: A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets and convert the energy packets into a fuel valve reference. Further, a frequency control may receive system feedback associated with the monitored machine and generate a frequency correction based on the system feedback. The controller may add the energy packet value and the frequency correction to determine a prime mover power reference and provide the prime mover power reference to a fuel valve control of the machine.Type: GrantFiled: October 9, 2020Date of Patent: May 18, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood, Scott M. Manson
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Publication number: 20210131371Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.Type: ApplicationFiled: January 13, 2021Publication date: May 6, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Ellery A. Blood, Scott M. Manson
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Publication number: 20210109158Abstract: A frequency tracking system may use shaft speed and electrical frequency to estimate a frequency of a monitored machine. The frequency tracking system may convert shaft speed to a mechanical frequency and blend the electrical frequency and the mechanical frequency together to determine an estimated frequency. The frequency tracking system may blend the frequencies based on an operating state of the monitored machine and the frequency sensors.Type: ApplicationFiled: October 14, 2019Publication date: April 15, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
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Publication number: 20210111652Abstract: A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets and convert the energy packets into a fuel valve reference. Further, a frequency control may receive system feedback associated with the monitored machine and generate a frequency correction based on the system feedback. The controller may add the energy packet value and the frequency correction to determine a prime mover power reference and provide the prime mover power reference to a fuel valve control of the machine.Type: ApplicationFiled: October 9, 2020Publication date: April 15, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood, Scott M. Manson
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Publication number: 20210111651Abstract: A device to control a genset engine may use multiple feedback loops to provide a fast stable response to load changes. An outer feedback loop may receive frequency measurements and power measurements of a genset engine and determine a dispatch adjustment comprising a frequency setpoint based on the frequency measurements and power measurements. A middle feedback loop may comprise a double deadband droop filter that periodically generates a pulse based on the frequency setpoint and the power measurements. The middle feedback loop may update an inner loop setpoint based on the pulse. An inner feedback loop may alter a target fuel valve reference of the genset engine based on the inner loop setpoint generated by the second controller and a fuel valve droop.Type: ApplicationFiled: October 12, 2020Publication date: April 15, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
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Patent number: 10971933Abstract: This disclosure includes various systems and methods for determining an operating stage based on electrical conditions in electric power delivery systems and identifying a control strategy based upon the operating stage. The control strategy may be selected and customized to avoid or to ameliorate stresses in an electric power delivery system while maintaining the stability of electric power delivery systems. Various embodiments consistent with the present disclosure may include a distributed controller configured receive a plurality of indications of electrical conditions from a plurality of control devices in electrical communication with the electrical power delivery system. The distributed controller may determine an operating stage from among a plurality of operating stages based upon the plurality of indications of electrical conditions. The distributed controller may further identify a control strategy based upon the operating stage.Type: GrantFiled: May 8, 2019Date of Patent: April 6, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Gregary C. Zweigle, Ellery A. Blood
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Patent number: 10920703Abstract: An intelligent electronic device (IED) may monitor wet stack residue buildup of a diesel engine. Once the wet stack residue accumulates to a certain amount, the IED may perform a mitigation procedure. Additionally, tracking wet stack residue buildup may allow an IED to attempt to prevent or reduce accumulation of the wet stack residue. The IED may track an operating power level of the diesel engine to estimate the rate of residue buildup.Type: GrantFiled: October 14, 2019Date of Patent: February 16, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Ellery A. Blood, Scott M. Manson