GAS TURBINE PLANT, CONTROL APPARATUS THEREFOR, AND CONTROL METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To enable stable operation even if a use amount of high calorie fuel gas is reduced, in a gas turbine plant in which low calorie fuel gas and high calorie fuel gas are introduced to a combustor.;SOLUTION: An air compressor 11 for feeding compressed air to the combustor includes an intake amount controller 15 for regulating an intake amount of external air. A control apparatus 100 includes; set calorie recognition parts 102, 105, 106 for recognizing a value of a set calorie related to a calorie per unit weight of fuel gas introduced to the combustor; a gas turbine output receiving part 103 for receiving gas turbine output; an opening computing part which uses a predetermined relationship between the opening of an intake amount controller 15 and gas turbine output for every value of the set calorie to determine an opening of the intake amount controller according to the value of set calorie recognized by the set calorie recognition part and gas turbine output received by the gas turbine output receiving part; and an output part 128 for outputting the opening to the intake amount controller 15.;COPYRIGHT: (C)2013,JPO&INPIT