| 摘要 |
A wind power generator (10) comprising a frame (11), an impeller (12) supported rotatably by the frame, power generators (34) driven to rotate by the impeller, and a controller (40) for selecting some ones from among transmission wires (36, 37) led from the power generators (34) to connect/disconnect them. The impeller (12) is supported by a vertically extending shaft (22), to which a main gear (31) is connected. The frame (11) has rotatable subgears (32) meshed with the main gear (31), and the shafts (34) of the subgears (32) are connected to the power generators (34). The controller (40) has a rotation sensor (41) for sensing the wind velocity or the rotational speed of the impeller, and disconnects the transmission wires (36, 37) when the rotational speed decreases, thereby reducing the number of power generators (34) being operating.
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