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:
Nov. 12, 2013
Filed:
Dec. 11, 2008
Giovanni Tonno, Florence, IT;
Mariateresa Paci, Florence, IT;
Michele D'ercole, Florence, IT;
Alessandro Russo, Florence, IT;
Jesse F. Stewart, Taylors, SC (US);
Ya-tien Chiu, Greer, SC (US);
Marco Ulivi, Florence, IT;
Antonio Baldassarre, Florence, IT;
Giovanni Tonno, Florence, IT;
Mariateresa Paci, Florence, IT;
Michele D'Ercole, Florence, IT;
Alessandro Russo, Florence, IT;
Jesse F. Stewart, Taylors, SC (US);
Ya-Tien Chiu, Greer, SC (US);
Marco Ulivi, Florence, IT;
Antonio Baldassarre, Florence, IT;
Nuovo Pignone S.p.A., Florence, IT;
Abstract
A method is described for controlling load variations in a gas turbine. The method comprises reducing the flow of gaseous fuel entering the combustor to a predefined minimum value, if an increase is observed in the rotation regime of said turbine above a predefined maximum value and a total reduction in the load, activating a selective feeding sequence of the burners if the turbine is operating in normal functioning or premixed flame mode, modifying the angulation of the adjustable stator vanes, in order to reduce the speed rate of the compressor, and opening one or more anti-surge valves and one or more overboard bleeds, in order to reduce the air flow at the inlet of the combustor.