| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wind power generation system capable of preventing a thunderstroke or a large current flow into an airflow generating device provided on a blade. <P>SOLUTION: The wind power generation system 10 includes: a lightening protection device including a receptor 70 provided on a blade surface and a lightening grounding conductive wire 73 grounding the receptor 70; an airflow generating device 60 that is provided on the blade surface and has a first electrode 61 and a second electrode 62 via a dielectric 63; a power supply for electric discharge 65 that includes a switch 90 capable of connecting the first electrode 61 to an output terminal 84, a switch 91 capable of connecting the second electrode 62 to an output terminal 85, and a switch 92 capable of selectively connecting the first electrode 61 or the second electrode 62 to a grounding conductor 100; and a thundercloud detection device that detects information on approach of thunder cloud. If the information on approach of thundercloud is detected, the second electrode 62 is connected to the grounding conductor 100, and connection is disconnected between the first electrode 61 and the output terminal 84 of a voltage application unit 83 and between the second electrode 62 and the output terminal 85 thereof. <P>COPYRIGHT: (C)2013,JPO&INPIT |
