Wing Energy Installation with Enhanced Overvoltage Protection
First Claim
1. A wind energy installation with a rotor which is rotatably supported on a pod, which comprises a hub, wherein the rotor comprises at least one adjusting apparatus which can be electrically driven and serves to adjust the pitch angle of at least one rotor blade which is affixable or affixed to the hub, and which is connected to a generator rotor which together with a stator forms a generator for supplying power to the adjusting apparatus, wherein the stator is installed and designed in such a manner that it can be used to generate a rotating magnetic field with respect to the generator rotor which is at a standstill relative to the pod.
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Accused Products
Abstract
A wind energy installation and method for production of electrical energy from wind energy by means of the wind energy installation having a rotor which can be driven via wind power and has rotor blades whose pitch angles can be adjusted by means of at least one adjusting apparatus, which can be driven electrically, in order to influence the rotational speed of the rotor, wherein a generator rotor is connected to the rotor, and the generator rotor together with the stator forms a generator,
and wherein a magnetic field which rotates with respect to the generator rotor is produced by the stator and, by interaction with the generator rotor, which is stationary with respect to the pod, induces a current flow in the generator in order to operate the adjusting apparatus.
94 Citations
15 Claims
- 1. A wind energy installation with a rotor which is rotatably supported on a pod, which comprises a hub, wherein the rotor comprises at least one adjusting apparatus which can be electrically driven and serves to adjust the pitch angle of at least one rotor blade which is affixable or affixed to the hub, and which is connected to a generator rotor which together with a stator forms a generator for supplying power to the adjusting apparatus, wherein the stator is installed and designed in such a manner that it can be used to generate a rotating magnetic field with respect to the generator rotor which is at a standstill relative to the pod.
- 10. A method for generating electric energy from wind energy by means of a wind energy installation with a rotor including rotor blades which are driven by wind energy, the pitch angles of which are adjustable by means of at least one adjusting apparatus which can be electrically driven in order to influence the rotational speed of the rotor, wherein a rotor generator is connected to the rotor, and the rotor generator forms a generator together with a stator, and wherein a magnetic field which rotates with respect to the rotor generator is produced by the stator, which by interaction with the generator rotor, which is stationary with respect to the pod, induces a current flow in the generator rotor in order to operate the adjusting apparatus.
Specification