The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2009
Filed:
Dec. 12, 2006
Ernst Scholtz, Raleigh, NC (US);
Reynaldo F. Nuqui, Cary, NC (US);
John D. Finney, Raleigh, NC (US);
Mats Larsson, Baden, CH;
Mani Subramanian, Sugar Land, TX (US);
Gordon Lin, Sugar Land, TX (US);
Ernst Scholtz, Raleigh, NC (US);
Reynaldo F. Nuqui, Cary, NC (US);
John D. Finney, Raleigh, NC (US);
Mats Larsson, Baden, CH;
Mani Subramanian, Sugar Land, TX (US);
Gordon Lin, Sugar Land, TX (US);
ABB Research Ltd., Zurich, CH;
Abstract
Phasor measurement units () provide phasor data from various locations () 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 () uses the phasor data and the non-phasor data to determine the power system state.