Patent ID: 7922155

Claim:
A control system for a steam generator comprising: a desuperheater control module, wherein the desuperheater control module controls at least one of an outlet desuperheater and a reheater (RH) desuperheater, wherein the desuperheater control module is based upon a predictive control action, and wherein the desuperheater control module is based upon a control action to affect a proportional-valve cooling water flow in the least one of the outlet desuperheater and the RH desuperheater; a boiler-control module that is coupled to the desuperheater control module, wherein the boiler-control module controls variables including at least one of burner tilt, burner intensity, flue gas recirculation, superheater platen temperatures including at least one of an RS superheater platen, an outlet superheater platen, and RH superheater platen, boiler fouling, and turbine output status, and wherein the desuperheater control module uses feedback and diagnostic control algorithms; and wherein the desuperheater control module can send a control statement to the boiler-control module to assure proportional-valve cooling water flow control in at least one of the outlet desuperheater and the RH desuperheater.