Gas turbine and operating method of the same.

摘要

A gas turbine in which a centrifugal compressor (3), which is driven a high pressure turbine (5), and a variable inlet guide vane (9) located at the inlet of the centrifugal compressor are provided. An axial-flow compressor is not provided between the centrifugal compressor and the variable inlet guide vane. An operating method of a gas turbine in which the output is varied by moving a variable inlet guide vane (9) while keeping the rate of rotation at a high level. It is possible to vary the output of the gas turbine in a short period of time and the durability of engine is improved.