Analysis of 22.5MW BFPT High Speed Rotor

The description is made for 22.5MW BFPT of 1000MW USC power plant.It features "higher load","larger thrust" and "wide range of speed".By using transfer matrix method,calculations and analysis are made to investigate the structure effect and sensitivity on the rotor critical speed and axial thrust force.The conflict between the axial thrust force and the critical speed is well solved by applying the research result of harmonization between thrust force and dynamic character of rotor.It is proved that the design of single casing and single flow is still suitable to 22.5MW BFPT and that the reliability,stability and high efficiency of this BFPT can also be guaranteed.