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. 06, 2017
Filed:
Nov. 30, 2012
Applicant:
General Electric Company, Schenectady, NY (US);
Inventors:
Robert Gregory Wagoner, Roanoke, VA (US);
Allen Michael Ritter, Roanoke, VA (US);
Mark Eugene Shepard, Roanoke, VA (US);
Talha Irfanul Haque, Roanoke, VA (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 3/12 (2006.01); H02M 7/00 (2006.01); G01R 27/16 (2006.01); G01R 31/42 (2006.01); H02J 3/38 (2006.01);
U.S. Cl.
CPC ...
G01R 27/16 (2013.01); G01R 31/42 (2013.01); H02J 3/381 (2013.01); H02J 3/383 (2013.01); H02J 3/386 (2013.01); H02J 2003/388 (2013.01); Y02E 10/563 (2013.01); Y02E 10/763 (2013.01);
Abstract
A method for detecting a grid event is provided. The method includes sampling grid voltage and grid current over a fixed period of time; determining grid impedance at one or more frequencies using the sampled grid voltage and the sampled grid current; comparing the grid impedance at the one or more frequencies to a known expected grid impedance at the one or more frequencies; and detecting a grid event based on the comparison.