| 摘要 |
The invention concerns a wind power installation for producing a sinusoidal ac voltage comprising a generator having a generator rotor and a generator stator, a rotor unit with rotor blades which is connected to the generator rotor, and power transmission means for the transmission of electrical power from the non-rotating part of the wind power installation to the rotor unit. In order to avoid the disadvantages which occur with power transmission by means of slip rings such as wear, noise and an excessively low level of efficiency, it is proposed in accordance with the invention that the power transmission means have an asynchronous machine whose stator is arranged at the non-rotating part of the wind power installation and whose rotor is arranged at the rotor unit for contactless transmission of electrical power to the rotor unit. |
