| 摘要 |
A windmill comprises a tower and meas for obtaining power from wind which is mounted on the top of the tower. The means for obtaining power from wind comprises a rotor and STS-energy-exchanging-coupling-elements, in which an electromagnetic element as an stationary electric element is fixed in the tower and a magnetic element is combined with the rotor to form a moving assembly. Each blade is supported at its two ends on a bow shaped frame and is aerodynamically similar to a wing of an air sailer so that a tangential force that makes the blade to rotate may be obtained at the middle part of the blade. By means of STS,the speed of the rotor can be automatically adjusted to match the speed of the energy exchanger and to keep the optimal efficiency. |
