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:
Jun. 04, 2013
Filed:
Jan. 30, 2013
Applicant:
Osisoft, Llc, San Leandro, CA (US);
Inventor:
Charles H. Wells, Emerald Hills, CA (US);
Assignee:
OSIsoft, LLC, San Leandro, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for monitoring a power grid uses power line sensors to measure time-stamped data representing AC current carried by the power grid at a multiple locations on the power grid, communicates the measured data from the power line sensors to a grid analysis device where the data measured by the power line sensors is synchronized and unwrapped to produce absolute phase data. The absolute phase data is then analyzed to generate predictions of instability of the power grid. The resulting unwrapped angle could also be called the 'angle distance' from the reference.