Automatic control system for thermal power plant.

摘要

An automatic control system for a thermal power plan comprises a master controller (201) controlling a turbine in response to an externally applied load command signal, and producing a boiler input command signal by correcting the load command signal on the basis of the detected pressure of main steam generated from a boiler, and a water/steam process controller (202), a fuel process controller (203), a combustion process controller (204) and a draft process controller (205) to all of which the boiler input command signal is applied from the master controller. The process controllers (202, 203, 204, 205) apply control signals to equipments controlling a water/steam process, a fuel process. a combustion process and a draft process respectively among the terminal actuating equipments of the various parts of the boiler.