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Systems and methods for regulating fuel at a power plant are provided. One example aspect of the present disclosure is directed to a method for regulating fuel at a power plant. The method includes receiving data from an engine. The engine includes an A-ring, a B-ring, and a C-ring. The method inclu

Systems and methods for regulating fuel at a power plant are provided. One example aspect of the present disclosure is directed to a method for regulating fuel at a power plant. The method includes receiving data from an engine. The engine includes an A-ring, a B-ring, and a C-ring. The method includes updating a plurality of models based on the received data. The method includes predicting a plurality of outputs using the plurality of models for a plurality of fuel splits. Each fuel split includes a fuel amount associated with the A-ring. Each fuel split includes a fuel amount associated with the C-ring. The method includes selecting an actual fuel split based on the plurality of outputs.

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1. A method for regulating fuel at a power plant comprising: receiving data from an engine, wherein the engine comprises an A-ring, a B-ring, and a C-ring;updating a composite model based on the received data, wherein the composite model models a composite of a plurality of outputs for combinations

1. A method for regulating fuel at a power plant comprising: receiving data from an engine, wherein the engine comprises an A-ring, a B-ring, and a C-ring;updating a composite model based on the received data, wherein the composite model models a composite of a plurality of outputs for combinations of flame temperatures at the C-ring and the A-ring, the plurality of outputs of the engine including an acoustic output, a NOx output, and a CO output;predicting the plurality of outputs including the acoustic output, the NOx output, and the CO output using the updated composite model for a plurality of fuel splits, wherein each fuel split comprises a fuel amount associated with the A-ring, and wherein each fuel split comprises a fuel amount associated with the C-ring; andselecting an actual fuel split based on the plurality of outputs. 2. The method of claim 1, wherein selecting an actual fuel split based on the plurality of outputs further comprises: identifying each of the fuel splits for which the composite model predicts the acoustic output above a threshold; andeliminating each of the identified fuel splits as the actual fuel split. 3. The method of claim 1, wherein selecting the actual fuel split based on the plurality of outputs further comprises: identifying each of the fuel splits for which the composite model predicts the NOx output outside of a first range;identifying each of the fuel splits for which the composite model predicts the CO output outside of a second range;identifying each of the fuel splits for which the composite model predicts the acoustic output above a threshold; andeliminating each of the identified fuel splits as the actual fuel split. 4. The method of claim 1, wherein the data received from the engine comprises one or more of flame temperature data, pressure inside a combustor, emissions data, and acoustics data. 5. The method of claim 4, wherein the flame temperature data comprises one or more of flame temperature in the A-ring and flame temperature in the C-ring. 6. The method of claim 1, further comprises receiving data from a variable enhanced lean blow out (ELBO) fuel circuit. 7. A system for regulating fuel at a power plant comprising: an engine comprising: an A-ring;a B-ring; anda C-ring; anda controller, wherein the controller is configured to: receive data from the engine;update a composite model based on the received data, wherein the composite model models a composite of a plurality of outputs for combinations of flame temperatures at the C-ring and the A-ring, the plurality of outputs of the engine including an acoustic output, a NOx output, and a CO output;predict the plurality of outputs including the acoustic output, the NOx output, and the CO output using the updated composite model for a plurality of fuel splits, wherein each fuel split comprises a fuel amount associated with the A-ring, and wherein each fuel split comprises a fuel amount associated with the C-ring; andselect an actual fuel split for the engine based on the plurality of outputs. 8. The system of claim 7, wherein the controller is further configured to: identify each of the fuel splits for which the composite model predicts the acoustic output above a threshold; andeliminate each of the identified fuel splits as the actual fuel split. 9. The system of claim 7, wherein the controller is further configured to: identify each of the fuel splits for which the composite model predicts the NOx output outside of a first range;identify each of the fuel splits for which the composite model predicts the CO output outside of a second range;identify each of the fuel splits for which the composite model predicts the acoustic output above a threshold; andeliminate each of the identified fuel splits as the actual fuel split. 10. A power plant comprising: an engine comprising: an A-ring;a B-ring; anda C-ring; anda controller, wherein the controller is configured to: receive data from the engine;update a composite model based on the received data, wherein the composite model models a composite of a plurality of outputs for combinations of flame temperatures at the C-ring and the A-ring, the plurality of outputs of the engine including an acoustic output, a NOx output, and a CO output;predict the plurality of outputs including the acoustic output, the NOx output, and the CO output using the updated composite model for a plurality of fuel splits, wherein each fuel split comprises a fuel amount associated with the A-ring, and wherein each fuel split comprises a fuel amount associated with the C-ring; andselect an actual fuel split for the engine based on the plurality of outputs. 11. The method of claim 3, wherein the composite model defines a plurality of limiting boundaries each representing combinations of flame temperatures of the A-ring and the C-ring, the plurality of limiting boundaries including a limiting boundary associated with the NOx output and defining the first range, a limiting boundary associated with the CO output and defining the second range, and a limiting boundary associated with the acoustic output and defining the threshold. 12. The method of claim 11, wherein one or more of the plurality of limiting boundaries are defined as a linear function. 13. The method of claim 1, wherein the composite model defines a plurality of ignore boundaries each representing inappropriate combinations of flame temperatures of the A-ring and the C-ring, wherein any output of the plurality of outputs beyond one of the plurality of ignore boundaries is ignored by the composite model. 14. The method of claim 13, wherein the plurality of ignore boundaries includes an ignore boundary associated with the NOx output and defines a first ignore range, a ignore boundary associated with the CO output and defines a second ignore range, and an ignore boundary associated with the acoustic output and defining a third ignore range. 15. The system of claim 7, wherein the controller is further configured to receive data from a variable enhanced lean blow out (ELBO) fuel circuit of the engine. 16. The system of claim 8, wherein the threshold is defined by the composite model as an arc. 17. The powerplant of claim 10, wherein the composite model defines a plurality of limiting boundaries each representing combinations of flame temperatures of the A-ring and the C-ring, the plurality of limiting boundaries including a limiting boundary associated with the NOx output and defining the first range, a limiting boundary associated with the CO output and defining the second range, and a limiting boundary associated with the acoustic output and defining the threshold. 18. The powerplant of claim 10, wherein the composite model defines a plurality of ignore boundaries each representing inappropriate combinations of flame temperatures of the A-ring and the C-ring, wherein any output of the plurality of outputs beyond one of the plurality of ignore boundaries is ignored by the composite model. 19. The powerplant of claim 18, wherein the plurality of ignore boundaries includes an ignore boundary associated with the NOx output and defines a first ignore range, a ignore boundary associated with the CO output and defines a second ignore range, and an ignore boundary associated with the acoustic output and defining a third ignore range.