POWER GENERATION SYSTEM AND OPERATION METHOD OF POWER GENERATION SYSTEM

摘要

A power generation system 10 includes a gas turbine 11, a fuel cell 13, an exhausted fuel gas supply line 45, an on-off control valve (on-off valve) 106 arranged in the exhausted fuel gas supply line 45, a heating means 102 that heats the exhausted fuel gas supply line 45 in a range on the upstream side of the on-off control valve 106, a detection unit 104 that detects a state of exhausted fuel gas flowing through the exhausted fuel gas supply line 45 in the range on the upstream side of the on-off control valve 106, and a control unit (control device) 62 which controls the heating of the exhausted fuel gas supply line 45 by the heating means 102 and which sets the on-off control valve 106 to open when determining that the heating of the exhausted fuel gas supply line is completed.

主权项

1. A power generation system comprising:
a gas turbine including a compressor and a combustor; a fuel cell including a cathode and an anode; an exhausted fuel gas supply line that supplies exhausted fuel gas exhausted from the fuel cell to gas turbine; an on-off control valve which is arranged in the exhausted fuel gas supply line and which at least switches between open and close; a heating unit that heats the exhausted fuel gas supply line in a range on an upstream side of the on-off control valve; a detection unit that detects a state of the exhausted fuel gas in the exhausted fuel gas supply line in the range on the upstream side of the on-off control valve; and a control unit which controls the heating of the exhausted fuel gas supply line by the heating unit based on a result detected by the detection unit, and which operates the on-off control valve to open when determining that the heating of the exhausted fuel gas supply line is completed based on a result detected by the detection unit.