SUPERCRITICAL CO2 GENERATION SYSTEM

摘要

The present invention relates to a supercritical carbon dioxide power generation system. The supercritical carbon dioxide power generation system comprises: a carbon dioxide supply device to supply carbon dioxide which is a working fluid; a cooler connected to a rear end of the carbon dioxide supply device to cool the working fluid; a compressor connected to a rear end of the cooler to compress the working fluid; a heater to heat the working fluid passing through the compressor; a plurality of turbines rotated by the working fluid passing through the heater; a generator connected to the turbines to be driven and produce power; and a plurality of spools to drive the compressor and the turbines. According to the present invention, constant speed turbines are used to eliminate a need for use of an AC/DC converter to eliminate a limit on a power generation output and directly supply power to a grid. Also, the compressor and the generator can be driven together using a single turbine to improve operating efficiency of the system.