OUTPUT CONTROL SYSTEMS OF COMBINED CYCLE TYPE ELECTRIC POWER GENERATING SYSTEMS

In a combined cycle type electric power generation system including a plurality of shafts each coupling together a gas turbine, a steam turbine and an electric generator, there is provided an output control system including a plurality of control apparatus for respective shafts. Each apparatus is contracted such that in response to an output command from a central power dispatching station or an output of a load setter, a frequency deviation and a total load of the system and load of each shaft, the total load is equally or unequally distributed among respective shafts.