Wind power system

A wind power system comprising:

• a rail for providing a movement path in a horizontal direction, the rail forming a loop;
• an inner loop formed inside the loop to provide a shorter movement path than the loop;
• a moving body configured to slide and move along the movement path of the rail;
• a plurality of blades installed on the moving body and configured to provide power for movement of the moving body based on energy from wind;
• and
• a nacelle having a generator for generating power by rotating in conjunction with the movement of at least one of the moving body and the blades,
• wherein the at least one of the moving body and the blades includes a surface facing the generator and a plurality of toothed threads formed in the surface,
• wherein the generator includes a circular toothed gear coupled to a generator central rotary shaft and is configured such that the generator central rotary shaft rotates as the toothed threads move in engagement with the circular toothed gear according to the movement of at least one of the moving body and the blades,
• wherein each of the plurality of blades is configured to adaptively rotate to maximize power in a target movement direction based on information on a wind direction and information on the target movement direction determined according to a position of each of the plurality of blades in the loop, and
• wherein the generator is configured to
• rotate in conjunction with the movement of at least one of the moving body and the blades of the loop, or the movement of at least one of the moving body and the blades of the inner loop,
• have a target rotation speed based on information on a wind speed, and
• selectively rotate in conjunction with either of the loop movement or the inner loop movement so that the generator has a rotation speed that is closer to the target rotation speed.