| 摘要 |
PURPOSE: An aerogenerator is provided to generate a large amount of electricity by only rotating a main generator directly exposed to wind by the rotational speed of the main generator when wind speed is high, and the rotational speed of the main generator becoming slow when the wind speed is low. CONSTITUTION: An aerogenerator comprises a main rotary means(100), a main generator(200), an auxiliary rotary means(300), and an auxiliary generator(400). The main rotary means is equipped with a main rotary plate(110) connected to a rotary shaft equipped with an impeller. Permanent magnets are inserted into grooves(120) formed on one side of the main rotary plate at regular distances. The auxiliary rotary means is equipped with an auxiliary rotary plate on which grooves are formed at regular distances. Permanent magnets are inserted into the grooves of the auxiliary rotary plate and generate repulsive forces and attractive forces with the permanent magnets of the main rotary means. The main rotary plate and the auxiliary rotary plate partially overlapped each other, and then the poles of the permanent magnets of each rotary plate repel each other so that only the main rotary means is rotated when wind speed is higher than a certain level. The main rotary means is rotated together with the auxiliary rotary means when the wind speed is lower than the certain level. Plural auxiliary rotary means are installed at an angle of 120° intervals. The N-poles and the S-poles of the permanent magnets of the main rotary means and the auxiliary rotary means are arranged to be continuously and repeatedly alternative to each other. [Reference numerals] (AA) Rotary shaft |
