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:
Sep. 26, 2017

Filed:

Jun. 26, 2014
Applicant:

General Electric Company, Schenectady, NY (US);

Inventor:

Sreedhar Desabhatla, Bavaria, DE;

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 15/10 (2006.01); F02C 9/26 (2006.01); G05B 15/02 (2006.01); H02J 3/24 (2006.01); H02P 9/10 (2006.01); H02J 3/38 (2006.01); H02J 3/00 (2006.01);
U.S. Cl.
CPC ...
F01D 15/10 (2013.01); F02C 9/26 (2013.01); G05B 15/02 (2013.01); H02J 3/24 (2013.01); H02P 9/102 (2013.01); H02J 3/38 (2013.01); H02J 2003/001 (2013.01);
Abstract

A method of controlling a power generation system following a transient grid event, and a system and controller to control the power generation system are described. The method includes sensing a rate of change of electrical frequency at terminals of a generator, determining a rate of change of shaft line acceleration, and identifying the transient grid event based on the rate of change of shaft line acceleration. The method also includes triggering an action to recover from the transient grid event when the rate of change of electrical frequency exceeds a first specified value and the rate of change of shaft line acceleration exceeds a second specified value for a specified duration.


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