GAS TURBINE CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a gas turbine control device capable of maintaining stable combustion and favorable gas-exhaust performance even when a catalyst degrades.

SOLUTION: A gas turbine control device 6 includes a combustion device 2 that premixes compressed air CA from a compressor 1 with a main fuel MF and burns the mixed gas by using a catalyst to supply it to a turbine 3. The combustion device 2 is the gas turbine control device 6 having a catalyst combustion unit 21 carrying the catalyst and a preburner 7 that supplies the compressed air CA with a preheating fuel PF at an upper stream side to burn it. There are provided a storage means 6c that stores a difference between an inlet temperature t1 and an outlet temperature t2 of the newly used catalyst combustion unit 21 as an initial value D and a preburner fuel combustion control means 6a that controls a fuel supply amount to the preburner 7 on the basis of an aging difference Δd between a difference d between the inlet temperature and the outlet temperature of the catalyst combustion unit 21 and the initial value D.

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