ENGR 455 – Power System Analysis and Design
A three-blades, 40 m diameter wind turbine generating 600 KW at an incident wind speed of 14 m/s. Given that the air density is 1.225 Kg/m3; calculatea) The RPM of the rotor when it operates with TSR of 4b) The tip speed of the rotor (Ans. 55.9 m/s)c) The needed gear ratio to rotate the generator at 1800 rpmd) The overall turbine efficiency (Ans. 28.4 %)e) Overall turbine efficiency (Ans. 28.4 %)Problem 2:Find the size of a wind turbine rotor (i.e. Diameter) that will generate 100 KW of electrical power in a steady wind of 7.5m/sec. Assume that the air density is 1.225
