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:
Aug. 16, 2011
Filed:
Aug. 28, 2007
Christopher T. Meadows, Simpsonville, SC (US);
Douglas E. Dean, Greer, SC (US);
Jason D. Fuller, Simpsonville, SC (US);
William F. Seely, Taylors, SC (US);
Christopher T. Meadows, Simpsonville, SC (US);
Douglas E. Dean, Greer, SC (US);
Jason D. Fuller, Simpsonville, SC (US);
William F. Seely, Taylors, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method and controller for identifying lean blowout conditions in a Dry Low NO(DLN) combustor during a premix mode. An effective approach to quickly and reliably identify a blowout during operation in the premix mode is by the effect on fuel normalized power (FNP). FNP is a useful signal, in that a power reduction from a blowout may be distinguished much slower changes in power resulting from global fuel demand (changing load request). A difference between the FNP and a filtered FNP parameter may be compared against a predetermined threshold. If the difference exceeds the threshold, a lean blowout is identified and a signal may be transmitted to the turbine controller to reposition combustor operation away from blowout conditions.