Patent ID: 9638102
Date: 2017-05-02
CPC Classifications: F01K,F02C,H01M,Y02E,Y02P

Claim:
1. A power generation system comprising: a gas turbine having a compressor and a combustor; a fuel cell having a cathode and an anode; a first compression oxidant supply line configured to supply a compression oxidant compressed in the compressor to the combustor; a second compression oxidant supply line configured to supply at least a part of the compression oxidant compressed in the compressor to the cathode; an exhaust oxidant supply line configured to supply an exhaust oxidant discharged from the cathode to the combustor; a first fuel gas supply line configured to supply a fuel gas to the combustor; a second fuel gas supply line configured to supply the fuel gas to the anode; a fuel gas supply ratio change unit capable of changing a supply ratio between the fuel gas supplied to the combustor and the fuel gas supplied to the anode; an exhaust fuel gas supply line configured to supply an exhaust fuel gas discharged from the anode to the combustor; and a control unit configured to control the fuel gas supply ratio change unit in accordance with a temperature of the fuel cell, wherein the fuel cell is provided with a power generation chamber temperature detector configured to detect a temperature of a power generation chamber of the fuel cell, and before the fuel cell completes start-up, the control unit performs control of decreasing a fuel gas flow rate supplied to the combustor by ΔL and of increasing a fuel gas flow rate supplied to the anode by ΔL by the fuel gas supply ratio change unit.