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.

Date of Patent:
Jul. 17, 2018

Filed:

Aug. 16, 2013
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Yan Pan, Niskayuna, NY (US);

William James Premerlani, Scotia, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/34 (2006.01); G01R 19/25 (2006.01); H02J 3/24 (2006.01); H02H 3/38 (2006.01);
U.S. Cl.
CPC ...
G01R 31/343 (2013.01); G01R 19/2513 (2013.01); H02H 3/382 (2013.01); H02J 3/24 (2013.01);
Abstract

In accordance with one embodiment, a method for detection of power swing for at least a first range of swing angles between an internal voltage (E) of a source-end generator and an internal voltage (E) of a receiving-end generator is provided. The method includes obtaining a voltage magnitude (V) of the source-end generator, and a current magnitude (I) of the source-end generator. The method further includes estimating a total reactance (X) between the source-end generator and the receiving-end generator, and estimating a first swing angle (θ) between the Eand the Eas a function of the obtained V, the obtained Iand the estimated X. The method further includes detecting a power swing condition based on the estimated θ.


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