Integrated Solar Combined Cycle Power Generation System and Integrated Solar Combined Cycle Power Generation Method

摘要

The integrated solar combined cycle power generation system includes a solar heat collector 100 for collecting solar heat and generating solar heat steam; a gas turbine 2; a gas turbine exhaust heat recovery boiler 9; and a steam turbine 10; wherein the solar heat steam is decreased in temperature by a solar heat steam desuperheater 42 under a normal condition, and the temperature decrease is stopped or a temperature decrease rate is reduced when the solar heat steam temperature falls due to a cause such as a sudden weather change, wherein the solar heat steam is joined to generated steam by a high-pressure drum 18 or exit steam of a primary superheater 20, and wherein a main steam temperature control by a main steam temperature control valve 30 is combined so that the main steam, the temperature of which is controlled to a predetermined temperature, is supplied to the steam turbine.