H - Electricity – 02 – P
Patent
H - Electricity
02
P
H02P 9/30 (2006.01) F03D 9/00 (2006.01) H02K 19/26 (2006.01) H02P 9/36 (2006.01)
Patent
CA 2464985
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.
L'invention concerne une éolienne servant à produire une tension alternative sinusoïdale, comportant : une génératrice qui présente un induit (7) et un stator ; un rotor pourvu de pales, relié à l'induit ; ainsi que des moyens servant à transmettre l'énergie électrique de la partie non rotative de l'éolienne au rotor. L'objectif de l'invention est d'éviter les inconvénients, tels que l'usure, le bruit et un rendement trop faible, survenant lors de la transmission d'énergie au moyen de bagues collectrices. A cet effet, les moyens de transmission d'énergie présentent une machine asynchrone,(4) dont le stator (5) est placé sur la partie non rotative de l'éolienne et dont l'induit (6) est placé sur le rotor, afin de transmettre sans contact l'énergie électrique au rotor.
Oyen Wiggs Green & Mutala Llp
Wobben Aloys
LandOfFree
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