Patents by Inventor Nicholas C. Abi-Samra

Nicholas C. Abi-Samra 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).

  • Emergency frequency load shedding scheme
    Patent number: 8204632
    Abstract: A load shedding system and method for controlling imbalances in a power system includes a signal generator adapted to generate a signal representative of a local system, and a modifying circuit adapted to adjust set frequencies. The system also includes a processing circuit adapted to process data received from the signal generator and modifying circuit and set load shedding priorities for the local system based on the processed data.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: June 19, 2012
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Nicholas C. Abi-Samra
  • EMERGENCY FREQUENCY LOAD SHEDDING SCHEME
    Publication number: 20120041612
    Abstract: A load shedding system and method for controlling imbalances in a power system includes a signal generator adapted to generate a signal representative of a local system, and a modifying circuit adapted to adjust set frequencies. The system also includes a processing circuit adapted to process data received from the signal generator and modifying circuit and set load shedding priorities for the local system based on the processed data.
    Type: Application
    Filed: October 26, 2011
    Publication date: February 16, 2012
    Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventor: Nicholas C. Abi-Samra
  • EMERGENCY FREQUENCY LOAD SHEDDING SCHEME
    Publication number: 20090299540
    Abstract: A load shedding system and method for controlling imbalances in a power system includes a signal generator adapted to generate a signal representative of a local system, and a modifying circuit adapted to adjust set frequencies. The system also includes a processing circuit adapted to process data received from the signal generator and modifying circuit and set load shedding priorities for the local system based on the processed data.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 3, 2009
    Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventor: Nicholas C. Abi-Samra
  • Power system switch incorporating a positive-sequence fundamental signal magnitude detector
    Patent number: 5642003
    Abstract: A power switching apparatus includes a positive-sequence fundamental signal magnitude detector. The positive-sequence fundamental signal magnitude detector derives a positive-sequence fundamental signal from a three-phase voltage signal carried by a power line; it also generates a switch firing command when the positive-sequence fundamental signal exceeds a predetermined threshold value indicative of a fault condition on the power line. The power switching apparatus also includes a solid state switch connected to the power line and the positive-sequence fundamental signal magnitude detector. The solid state switch bloch power on the power line in response to the switch firing command.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: June 24, 1997
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Charles W. Edwards, Nicholas C. Abi-Samra