DENITRATION CONTROL DEVICE FOR GAS TURBINE, GAS TURBINE COMBINED-CYCLE POWER GENERATION FACILITY, DENITRATION CONTROL METHOD FOR GAS TURBINE AND DENITRATION CONTROL PROGRAM FOR GAS TURBINE

摘要

PROBLEM TO BE SOLVED: To provide a denitration control device for a gas turbine, a gas turbine combined-cycle power generation facility, a denitration control method for a gas turbine, and a denitration control program for a gas turbine, allowing for control of a reducer injection amount corresponding to Nox that largely changes upon switching between a diffusion pilot and a premix pilot.;SOLUTION: The denitration control device 50 for a gas turbine 100 is provided that injects a reducer performing a denitration reaction to a denitrification device 77 to remove nitrogen oxide from combustion exhaust gas of the gas turbine 100, the denitrification device 77 denitrifying combustion exhaust gas from the gas turbine 100 comprising a combustor 40 which operates in such a way that a diffusion pilot using a diffusion pilot burner and a premix pilot using a premix pilot burner are switched. The denitration control device 50 comprises a bias quantity command control part 52 adding a bias quantity to a reducer used for denitration of the combustion exhaust gas when switching between a diffusion pilot and a premix pilot.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT