| 摘要 |
PURPOSE: A wind power generator is provided to extend the length of a blade against a hub according to a wind force with inserting or ejecting an auxiliary blade part against, thereby securing the rotating speed of the blade against a rated wind speed. CONSTITUTION: A wind power generator includes a hub and multiple blades (500) arranged along the outer circumferential surface of the hub at equal distances. The blade includes a blade part (520), an auxiliary blade part (540), and a driving part (560). The blade part is rotated by a wind force, and has a root (524) adjacent to the hub and a tip (526) facing the root. The auxiliary blade part is inserted or ejected against the tip of the blade part. The driving part inside the blade part inserts or ejects the auxiliary blade part against the tip according to the rotating speed of the blade part. |
