Patents Represented by Attorney Anthony M. Driggs, Hogg, Daugherty & Del Zoppo Co., L.P.A.

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  • Estimation of real-time power system quantities using time-synchronized measurements
    Patent number: 7499816
    Abstract: Phasor measurement units (108) provide phasor data from various locations (102) in an electrical power system. The phasor data is referenced to a common timing signal. Non-phasor measurement data is also obtained at various locations in the power system. A phasor assisted state estimator (120) uses the phasor data and the non-phasor data to determine the power system state.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: March 3, 2009
    Assignee: ABB Research Ltd.
    Inventors: Ernst Scholtz, Reynaldo F. Nuqui, John D. Finney, Mats Larsson, Mani Subramanian, Gordon Lin