Wind power generation system, wind power generation system assembly method, or wind power generation system inspection method

摘要

A wind turbine system includes blades which rotate by receiving wind, a nacelle (20) which supports the blades (1) and rotates with the blades (1), a main shaft (4) for transmitting torque which is connected to the hub (2) and is rotated by the rotation of the hub (2), and a generator which generates electricity using rotating energy of the main shaft (4), wherein the main shaft (4) is connected to the hub (2) inside the hub (2) in the axial direction of the main shaft (4).