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).

  • Patent number: 11828805
    Abstract: 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: Grant
    Filed: May 13, 2021
    Date of Patent: November 28, 2023
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
  • Patent number: 11777426
    Abstract: 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: Grant
    Filed: February 21, 2022
    Date of Patent: October 3, 2023
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Scott M. Manson, Ellery A. Blood
  • Publication number: 20230268857
    Abstract: 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: Application
    Filed: February 21, 2022
    Publication date: August 24, 2023
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Scott M. Manson, Ellery A. Blood
  • Patent number: 11686265
    Abstract: 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: Grant
    Filed: January 6, 2022
    Date of Patent: June 27, 2023
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Ellery A. Blood, Scott M. Manson
  • Publication number: 20220407311
    Abstract: 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: Application
    Filed: April 29, 2022
    Publication date: December 22, 2022
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Ellery A. Blood, Scott M. Manson
  • Publication number: 20220365137
    Abstract: 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: Application
    Filed: May 13, 2021
    Publication date: November 17, 2022
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
  • Patent number: 11467197
    Abstract: 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: Grant
    Filed: May 5, 2021
    Date of Patent: October 11, 2022
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood
  • Publication number: 20220128014
    Abstract: 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: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Ellery A. Blood, Scott M. Manson
  • Patent number: 11261813
    Abstract: 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: Grant
    Filed: January 13, 2021
    Date of Patent: March 1, 2022
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Ellery A. Blood, Scott M. Manson
  • Patent number: 11169211
    Abstract: 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: Grant
    Filed: October 14, 2019
    Date of Patent: November 9, 2021
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
  • Patent number: 11146193
    Abstract: 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: Grant
    Filed: October 12, 2020
    Date of Patent: October 12, 2021
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
  • Publication number: 20210278447
    Abstract: 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: Application
    Filed: May 5, 2021
    Publication date: September 9, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood
  • Patent number: 11035891
    Abstract: 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: Grant
    Filed: March 6, 2020
    Date of Patent: June 15, 2021
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood
  • Patent number: 11012016
    Abstract: 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: Grant
    Filed: October 9, 2020
    Date of Patent: May 18, 2021
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood, Scott M. Manson
  • Publication number: 20210131371
    Abstract: 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: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Ellery A. Blood, Scott M. Manson
  • Publication number: 20210109158
    Abstract: 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: Application
    Filed: October 14, 2019
    Publication date: April 15, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
  • Publication number: 20210111652
    Abstract: 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: Application
    Filed: October 9, 2020
    Publication date: April 15, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Gregary C. Zweigle, Ellery A. Blood, Scott M. Manson
  • Publication number: 20210111651
    Abstract: 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: Application
    Filed: October 12, 2020
    Publication date: April 15, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Scott M. Manson, Ellery A. Blood, Gregary C. Zweigle
  • Patent number: 10971933
    Abstract: 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: Grant
    Filed: May 8, 2019
    Date of Patent: April 6, 2021
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Gregary C. Zweigle, Ellery A. Blood
  • Patent number: 10920703
    Abstract: 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: Grant
    Filed: October 14, 2019
    Date of Patent: February 16, 2021
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Ellery A. Blood, Scott M. Manson