Patents by Inventor Greg S. Dwernychuk

Greg S. Dwernychuk 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).

  • Method and system for using phasor measurements in state estimation of power systems
    Patent number: 7904261
    Abstract: A method of state estimation is provided, including: (a) acquiring a plurality of positive sequence voltage and current phasor measurements; (b) designating a reference positive sequence voltage phasor measurement from the acquired phasor measurements; (c) correcting the acquired phasor measurements to account for the reference phasor measurement; (d) calculating complex power having a real component and an imaginary component, using the corrected positive sequence voltage and current phasor measurement; (e) using the real component of said complex power as a calculated mega-watt and the imaginary component of the complex power as a calculated mega-volt-ampere; and (f) using the mega-watt and mega volt-ampere calculations in a state estimation algorithm.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: March 8, 2011
    Assignee: British Columbia Hydro and Power Authority
    Inventors: Djordje Atanackovic, Greg S. Dwernychuk, Jose Clapauch