| 摘要 |
<p>PURPOSE:To provide a control device so that FF control can be backed up by an FB control system, and performance deterioration can be prevented regardless of changing a condition of a gas turbine, to further well control a reference O2 correction value of exhaust gas NOx concentrate always to a reference value even in the case of fluctuating residual oxygen concentration in exhaust gas. CONSTITUTION:A speed type fuzzy controller 139 is provided with a fuzzy inference mechanism 137, FB rule 135 and an FF rule 136, and in the case of such as no load change of a gas turbine, feedback control is performed by the FB rule, to control exhaust gas nitrogen oxide concentration to a target set value. When received disturbance of load fluctuation or the like of a gas turbine, a disturbance detection signal is fluctuated to ignite the FF rule, and feedforward control is performed.</p> |
