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:
Dec. 08, 2015

Filed:

Jan. 28, 2013
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Alston Ilford Scipio, Mableton, GA (US);

Dale J. Davis, Greenville, SC (US);

Steven Hartman, Marietta, GA (US);

Sanji Ekanayake, Mableton, GA (US);

Paul Robert Fernandez, Woodstock, GA (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 11/00 (2006.01); H02P 9/04 (2006.01); F02C 9/26 (2006.01); F02C 9/46 (2006.01);
U.S. Cl.
CPC ...
H02P 9/04 (2013.01); F02C 9/26 (2013.01); F02C 9/46 (2013.01); Y02E 10/763 (2013.01);
Abstract

A system and method is provided that improves the under frequency response of gas turbines by providing a fast-response power augmentation system. The system includes a tank storing a blended mixture of motive fuel such as ethanol or methanol and demineralized water in a predetermined ratio that is provided as a diluent to be injected into the compressor bellmouth, the Compressor Discharge Chamber (CDC), and/or the combustion system via one to three dedicated circuits. To achieve the instantaneous injection of the diluent at the correct pressure and for the appropriate duration to meet the needs of the gas turbine Grid compliance mandate, an accumulator is used as the motive force to drive the augmentation fluid in the dedicated circuits. The injected diluent is microprocessor controlled to either be simultaneous into all three circuits or is sequenced based on a determination of the best turbine control and performance.


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