Rotor blade for use in wind power station, has flap valves for passing wind at particular places for reducing forces and for power limitation, where valves are passively controlled through wind pressure
摘要
<p>The rotor blade has flap valves for passing wind at particular places for reducing forces and for power limitation. The flap valves are passively controlled through wind pressure and are automatically opened by forces. The flap valves are actively controlled, for e.g. by software for vibration controlling on other side. Passages are provided as channels in the rotor blade.</p>
