Transient emission temperature control of turbine systems
AssigneeGeneral Electric Company
InventorsJames Harper, Akilez Krishnamurthy Arthanari
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Abstract
In one embodiment, a system is provided. The system includes a turbine control system, comprising a processor. The processor is configured to receive an input for transitioning between a normal load path (NLP) of a turbine system and a cold load path (CLP) of the turbine system. The processor is additionally configured to determine a carbon monoxide (CO) setpoint based on the input. The processor is further configured to apply a temperature control based on the CO setpoint, wherein the normal load path comprises higher emissions temperatures as compared to the cold load path.
Claims20
A system comprising:
- a turbine control system, comprising a processor configured to:
- receive an input for transitioning between a normal load path (NLP) of a turbine system and a cold load path (CLP) of the turbine system;
- determine a carbon monoxide (CO) setpoint based on the input and on a modeled function relationship between a firing temperature and CO emitted by the turbine system, wherein the modeled function relationship comprises a function having a decrease in the CO emitted as the firing temperature for the turbine system increases, wherein the function comprises the CO produced in a first axis and the firing temperature in a second axis, and wherein the CO setpoint is determined to maintain the CO emitted by the turbine system below a CO regulatory limit;
- and
- control a firing temperature of the turbine system by modulating a fuel valve configured to deliver a fuel to the turbine system based on the CO setpoint, wherein the normal load path comprises higher emissions temperatures as compared to the cold load path.
The system of claim, 2, wherein the factor comprises between 0.08 and 1.2.
A method, comprising:
- receiving, via a processor, an input for transitioning between a normal load path (NLP) of a gas turbine system and a cold load path (CLP) of the gas turbine system;
- determining, via the processor, a carbon monoxide (CO) setpoint based on the input and a modeled function relationship between a firing temperature and CO emitted by the gas turbine system, wherein the modeled function relationship comprises a function having a decrease in the CO emitted as the firing temperature for the turbine system increases, wherein the function comprises the CO produced in a first axis and the firing temperature in a second axis, and wherein the CO setpoint is determined to maintain the CO emitted by the turbine system below a CO regulatory limit;
- and
- controlling, via the processor, a firing temperature of the gas turbine system by modulating a fuel valve configured to deliver a fuel to the gas turbine system based on the CO setpoint, wherein the normal load path comprises higher emissions temperatures as compared to the cold load path.
A machine-readable medium storing non-transitory processor-executable instructions, the processor-executable instructions configured to:
- receive an input for transitioning between a normal load path (NLP) of a turbine system and a cold load path (CLP) of the turbine system;
- determine a carbon monoxide (CO) setpoint based on the input and a modeled function relationship between a firing temperature and CO emitted by the turbine system, wherein the modeled function relationship comprises a function having a decrease in the CO emitted as the firing temperature for the turbine system increases, wherein the function comprises the CO produced in a first axis and the firing temperature in a second axis, and wherein the CO setpoint is determined to maintain the CO emitted by the turbine system below a CO regulatory limit;
- and
- control a firing temperature of the turbine system by modulating a fuel valve configured to deliver a fuel to the turbine system based on the CO setpoint, wherein the normal load path comprises higher emissions temperatures as compared to the cold load path.
Dependencies are inferred from the claim text.