DENITRATION CONTROL DEVICE

摘要

PURPOSE: To provide a denitration control device enhanced and improved in controllability in consideration to the non-linear reaction characteristic of a denitration reaction process. CONSTITUTION: This denitration control device has a feedback control system and a feedforward control system and sends out an ammonia injection amt. command value Q39 to a denitration process part 18. A nonlinear compensation means 210 applying correction for compensating the non-linearity of a denitration reaction process to a nitrogen oxide generating amt. calculated value Q21 using a nitrogen oxide discharge amt. set value Q34 is provided to the feedforward control system.