| 摘要 |
Provided is a wind power generating apparatus adopts a rotor blade including a frame body unit composed of a frame body having an opening and a plurality of support frames extending from the frame body, and a sail portion adhered to cover the frame body unit. The frame body unit is configured to be retractable using wires and a servo-motor to decrease the surface area of the rotor blade in high winds. As a result, the rotor blade can rotate easily with a low wind power and can rotate continuously with an inertial power, once it starts the rotations, so that it can run the power generating function at a set value of a rated speed of rotations of 700 to 2,000 rpm.
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