Patents by Inventor M. Gamini Wickramasekara

M. Gamini Wickramasekara 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).

  • Online protection coordination for distribution management system
    Patent number: 9053020
    Abstract: A method for automatic protection coordination in a power system network comprises identifying radial source-to-load paths and fault protection devices in the source-to-load paths, for a portion of the power system network to be coordinated. Device settings data for fault protection devices are retrieved, including multiple preconfigured settings for some devices. Fault currents for each of multiple possible electrical faults in said portion of the power system network are predicted, and a selectivity check for each pair of fault protection devices that are adjacent to one another in an identified radial source-to-load path is performed, for each of one or more of the predicted fault currents, taking into account multiple preconfigured settings for remotely controllable fault protection devices.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: June 9, 2015
    Assignee: ABB Research Ltd.
    Inventors: Dmitry Ishchenko, Zhao Li, James D. Stoupis, Martin Bass, William L. Peterson, M. Gamini Wickramasekara
  • Online Protection Coordination for Distribution Management System
    Publication number: 20140108851
    Abstract: A method for automatic protection coordination in a power system network comprises identifying radial source-to-load paths and fault protection devices in the source-to-load paths, for a portion of the power system network to be coordinated. Device settings data for fault protection devices are retrieved, including multiple preconfigured settings for some devices. Fault currents for each of multiple possible electrical faults in said portion of the power system network are predicted, and a selectivity check for each pair of fault protection devices that are adjacent to one another in an identified radial source-to-load path is performed, for each of one or more of the predicted fault currents, taking into account multiple preconfigured settings for remotely controllable fault protection devices.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Applicant: ABB Research Ltd.
    Inventors: Dmitry Ishchenko, Zhao Li, James D. Stoupis, Martin Bass, William L. Peterson, M. Gamini Wickramasekara