Automatic combustion system characterization

Patent metadata

Field	Value
Publication number	US-9909508-B2
Application number	US-201414316325-A
Country	US
Kind code	B2
Filing date	Jun 26, 2014
Priority date	Jun 26, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

Aspects of the present disclosure relate generally to a system including: a computing device in communication with a combustion system, wherein the computing device is configured to perform actions including: issuing an input to the combustion system; determining whether one of a dynamic output and an emission output corresponding to the input to the combustion system exceeds a first boundary condition; and adjusting the input to the combustion system by one of a first step change and a second step change; wherein the first step change corresponds to the dynamic output and the emission output not exceeding the first boundary condition, and the second step change corresponds to one of the dynamic output and the emission output exceeding the first boundary condition, the second step change being less than the first step change.

First claim

What is claimed is:

1. A system comprising:
a computing device in communication with a combustion system, wherein the computing device is configured to perform actions including:
issuing an input to the combustion system, the input comprising one of an air-to-fuel ratio or a bypass air split ratio of the combustion system;
determining whether one of a dynamic output or an emission output corresponding to the input to the combustion system exceeds a first boundary condition; and
adjusting the input to the combustion system by one of a first step change or a second step change; wherein the first step change corresponds to the dynamic output and the emission output not exceeding the first boundary condition, and the second step change corresponds to one of the dynamic output or the emission output exceeding the first boundary condition, the second step change being less than the first step change.

2. The system of claim 1 , wherein the computing device is further configured to generate a characterization vector including the input, the dynamic output, and the emission output for the combustion system, wherein the characterization vector corresponds to an instance of issuing the input.

3. The system of claim 1 , wherein the air-to-fuel ratio is calculated respect to a plurality of fuel nozzles.

4. The system of claim 1 , wherein the dynamic output includes one of a maximum combustion dynamic, a mean combustion dynamic, a median combustion dynamic, a system-level dynamic, or a dynamic frequency.

5. The system of claim 1 , wherein the emission output includes one of a nitrogen oxide (NO x ) level, an unburned hydrocarbons (UHC) level, or a carbon monoxide (CO) level.

6. The system of claim 1 , wherein the first boundary condition comprises one of a high dynamic threshold, a high emission threshold, or a failure condition.

7. The system of claim 1 , wherein the computing device is further configured to perform actions including:
determining whether one of the dynamic output or the emission output exceeds a second boundary condition; and
setting the input to a safe state without adjusting the input by one of the first step change or the second step change in response to one of the dynamic output and the emission output exceeding the second boundary condition.

8. The system of claim 1 , wherein the dynamic output is monitored with a combustion dynamic monitoring (CDM) system, and the emission output is monitored with a unit-specific emission monitor.

9. The system of claim 8 , wherein the computing device is further configured to replicate the emission output from the unit-specific emission monitor, and integrate the replicated emission output into the CDM system.

10. The system of claim 1 , wherein the adjusting of the input by one of the first step change and the second step change decreases a difference between a target value and the input.

11. A program product stored on a non-transitory computer readable storage medium for automatically characterizing a combustion system, the non-transitory computer readable storage medium comprising program code for causing a computer system to:
issue an input to the combustion system, the input comprising one of an air-to-fuel ratio or a bypass air split ratio of the combustion system;
determine whether one of a dynamic output or an emission output corresponding to the input exceed a first boundary condition; and
adjust the input to the combustion system by one of a first step change or a second step change; wherein the first step change corresponds to the dynamic output and the emission output not exceeding the first boundary condition, and the second step change corresponds to one of the dynamic output or the emission output exceeding the first boundary condition, the second step change being less than the first step change.

12. The program product of claim 11 , further comprising program code for causing the computer system to generate a characterization vector including the input, the dynamic output, and the emission output for the combustion system, wherein the characterization vector corresponds to an instance of issuing the input.

13. The program product of claim 11 , wherein the air-to-fuel ratio is calculated with respect to a plurality of fuel nozzles.

14. The program product of claim 11 , wherein the dynamic output includes one of a maximum combustion dynamic, a mean combustion dynamic, a median combustion dynamic, a system-level dynamic, or a dynamic frequency.

15. The program product of claim 11 , wherein the emission output includes one of a nitrogen oxide (NO x ) level, an unburned hydrocarbons (UHC) level, or a carbon monoxide (CO) level.

16. The program product of claim 11 , wherein the first boundary condition comprises one of a high dynamic threshold, a high emission threshold, or a failure condition.

17. The program product of claim 11 , further comprising program code for causing the computer system to:
determine whether one of the dynamic output or the emission output exceeds a second boundary condition; and
set the input to a safe state without adjusting the input by one of the first step change or the second step change in response to one of the dynamic output or the emission output exceeding the second boundary condition.

18. The program product of claim 11 , wherein the dynamic output is monitored with a combustion dynamic monitoring (CDM) system, and the emission output is monitored with a unit-specific emission monitor.

19. The program product of claim 18 , further comprising program code for causing the computer system to replicate the emission output from the unit-specific emission monitor and integrate the replicated emission output into the CDM system.

20. A system comprising:
a combustion dynamic monitoring (CDM) system configured to monitor a dynamic output of a combustion system and replicate an emission output of the combustion system from a unit-specific emission monitor; and
a characterization system in communication with the combustion system and the CDM system, wherein the characterization system is further configured to perform actions including:
issuing an input to the combustion system, the input comprising one of an air-to-fuel ratio or a bypass air split ratio of the combustion system,
determining whether one of the dynamic output or the emission output corresponding to the input to the combustion system exceeds a first boundary condition, and
adjusting the input to the combustion system by one of a first step change or a second step change; wherein the first step change corresponds to the dynamic output and the emission output not exceeding the first boundary condition, and the second step change corresponds to one of the dynamic output or the emission output exceeding the first boundary condition, the second step change being less than the first step change.

Assignees

• Gen Electric

Inventors

• Jaiven Rebecca Kathryn
• Laskowski Benjamin David
• Lazzuri Richard

Classifications

• F23N2223/40

  Simulation · CPC title

• F23N2241/20

  Gas turbines · CPC title

• F23N2900/05003

  Measuring NOx content in flue gas · CPC title

• F23N2900/05001

  Measuring CO content in flue gas · CPC title

• F23N5/16 Primary

  using noise-sensitive detectors · CPC title