Patent ID: 8370044

Claim:
A gas turbine, comprising: a plurality of target exhaust temperature determination modules, the plurality of target exhaust temperature modules comprising a nitrogen oxide (NOx) compliance module configured to output a NOx exhaust temperature at which an exhaust of the gas turbine complies with a maximum permitted level of NOx, and wherein the plurality of target exhaust temperature determination modules further comprises a carbon monoxide (CO) limiting module configured to output a CO exhaust temperature at which an exhaust of the gas turbine complies with a maximum permitted level of CO, a TFire target module configured to output a first target temperature for operation of the gas turbine, and a TFire limiting module configured to output a second target temperature for operation of the gas turbine, wherein the second target temperature is higher than the first target temperature; a maximum selector module, the maximum selector module configured to receive the CO exhaust temperature from the CO limiting module and the first target temperature from the TFire target module, and to output the higher of the CO exhaust temperature and the first target exhaust temperature; a minimum selector module, the minimum selector module configured to receive the output of the maximum selector module, the NOx exhaust temperature from the NOx compliance module, and the second target temperature from the TFire limiting module, and to output the lowest of the output of the maximum selector module, the NOx exhaust temperature, and the second target temperature; and a controller configured to operate the gas turbine in a NOx compliant peak mode to produce the NOx exhaust temperature determined by the NOx compliance module in the event the NOx exhaust temperature is output by the minimum selector module.