Gas Turbine Corresponding to Renewable Energy and Control Method Therefor

Abstract

A power generation system having a high following property to follow a load change is provided. A multi-shaft gas turbine power generation system includes a compressor that compresses air to generate compressed air, a combustor that generates a combustion gas from the compressed air and fuel, a gas generator including a high pressure turbine driven by the combustion gas, a power turbine including a low pressure turbine driven by a gas exhausted from the gas generator and a main power generator that generates power by a rotational force of the low pressure turbine to supply power to the system, a sub-electric motor and power generator connected to the gas generator and the power turbine via a frequency converter, and a control apparatus. The gas generator and the power turbine have different shafts. The control apparatus receives a load target of the system and a load change factor of the system to output a control signal of the frequency converter.

Dependencies are inferred from the claim text.