| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas turbine capable of suppressing degradation of reliability of a compressor due to change of a steam injection amount, an air temperature (compressor intake air temperature) and an opening of an inlet guide vane.SOLUTION: A gas turbine includes a control device for controlling at least one of a temperature of the air flowing into a compressor, a steam injection amount, and an opening of an inlet guide vane to satisfy a limit value of the steam injection amount applying the temperature of air, the opening of the inlet guide vane, and the steam injection amount as indexes. A mechanism for monitoring a pressure ratio in place of the steam injection amount, is disposed in the gas turbine, and a limit value for preventing an atmospheric air temperature condition, the pressure ratio, vane load in the opening of the inlet guide vane, or surge margin from being over a constant amount, is determined in advance, so that the opening of the inlet guide vane or the steam injection amount can be limited or controlled. |
