| 摘要 |
A wind power installation for producing a sinusoidal ac voltage is disclosed. Briefly described, one embodiment comprises a generator having a generator rotor and a generator stator; a rotor unit with rotor blades which are connected to the generator rotor; and a power transmission means for the transmission of electrical power from the non-rotating part of the wind power installation to the rotor unit, the power transmission means having 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, and arranged in the non-rotating part of the wind power installation is an inverter for producing an ac voltage having a periodic voltage pulse for feeding the stator of the asynchronous machine. |
