US 9,810,156 B2
Systems and methods for controlling mode transfers of a combustor
Jason Charles Terry, Greenville, SC (US); and Timothy Andrew Healy, Greenville, SC (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Dec. 18, 2012, as Appl. No. 13/718,588.
Prior Publication US 2014/0165581 A1, Jun. 19, 2014
Int. Cl. F02C 9/00 (2006.01); F02C 9/28 (2006.01); F23N 5/20 (2006.01)
CPC F02C 9/00 (2013.01) [F02C 9/28 (2013.01); F23N 5/203 (2013.01); F23N 2041/20 (2013.01)] 15 Claims
OG exemplary drawing
 
8. A system for controlling mode transfers of a combustor, the system comprising:
a controller configured to control the combustor; and
a processor communicatively coupled to the controller and configured to:
receive one or more current operating conditions associated with a current combustion mode;
receive one or more target operating limits;
receive one or more combustor transfer functions;
evaluate the one or more combustor transfer functions to estimate one or more operating limits associated with the current combustion mode and one or more operating limits associated with a plurality of combustion modes under the one or more current operating conditions to obtain one or more estimated operating limits associated with the current combustion mode and one or more estimated operating limits associated with the plurality of combustion modes, wherein the current combustion mode is not included in the plurality of combustion modes;
compare the one or more estimated operating limits associated with the current combustion mode and the one or more estimated operating limits associated with the plurality of combustion modes to the one or more target operating limits to determine similarity of the one or more estimated operating limits associated with the current combustion mode and the one or more estimated operating limits associated with the plurality of combustion modes to the one or more target operating limits;
score the current combustion mode and each of the plurality of combustion modes to determine a combustion mode with a desired performance for the one or more current operating conditions, wherein the combustion mode with the desired performance has a highest similarity of one or more estimated operating limits associated with the combustion mode with the desired performance to the one or more target operating limits;
select, from the current combustion mode and the plurality of combustion modes, the combustion mode with the desired performance for the one or more current operating conditions;
determine that the combustion mode with the desired performance selected from the current combustion mode and the plurality of combustion modes includes one of the plurality of combustion modes;
determine whether one or more differences between the one or more estimated operating limits associated with the combustion mode with the desired performance and the one or more estimated operating limits associated with the current combustion mode exceed one or more predetermined threshold values; and
when the one or more differences exceed the one or more predetermined threshold values, transfer the combustor to the combustion mode with the desired performance.