PATENTSCOPE sera indisponible quelques heures pour des raisons de maintenance le mardi 19.11.2019 à 16:00 CET
Recherche dans les collections de brevets nationales et internationales
Certains contenus de cette application ne sont pas disponibles pour le moment.
Si cette situation persiste, veuillez nous contacter àObservations et contact
1. (WO2005069465) ENSEMBLE FORMANT MACHINE ELECTRIQUE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

1. An electric machine assembly, containing electric machine mod-ules, especially generator modules (11-18), which are coupled to the shaft of a wind rotor or other actuator by a transmission mechanism,
said transmission mechanism comprising one or more gear wheels (B) directly connected to the shaft of the wind rotor or other actuator,
wherein the electric machine modules are arranged at the rim of the gear wheel and coupled to the gear wheel by second, smaller gear wheels (G) comprised in the transmission mechanism to reduce/increase the rotational speed of the electric machine modules,
and wherein the shafts of the electric machine modules (11-18) are connected to the second gear wheels (G) directly without an intermediate gear system,
characterized in that
the electric machine modules are axial-flux machines.
2. An electric machine assembly according to claim 1 , especially a wind power generator assembly, characterized in that the number of modules is at least three.
3. An electric machine assembly according to claim 1 , characterized in that the modules are identical.
4. An electric machine assembly according to claim 1 , characterized in that at least some of the modules are different.
5. An electric machine assembly according to claim 1 , characterized in that the module contains at least one rotor disc, and a stator is provided on only one side of it.
6. An electric machine assembly according to claim 1 , characterized in that the module contains at least one rotor disc, and stators are provided on either side of it.
7. An electric machine assembly according to claim 1 , characterized in that the transmission ratio of the transmission mechanism and the mounting position of the stators and rotors of the electric machine modules have been so selected that all the electric machines have the same power an-gle.
8. An electric machine assembly according to claim 1 , characterized in that, to optimize the voltage e.g. with respect to the wind-force, the modules can be electrically connected in series when a low find-force prevails and/or in parallel when a fairly high wind-force prevails and one or more modules can be controlled by means of a frequency converter so that the change of torque caused by the electric machine assembly will impose as little stress as possible on the wind power station.
9. An assembly according to claim 1 , characterized in that, by selecting a given number of modules and their power classes, a desired power level of each individual plant, such as each individual wind power station in a wind power park, is achieved.
10. An assembly according to claim 1 , characterized in that a separate frequency converter is provided for each module or a few or all of the modules are connected to one frequency converter.
11. An assembly according to claim 7, characterized in that when identical modules are used with the same power angle, exactly the same switching instructions can be applied to each frequency converter of an individ-ual electric machine.
12. An assembly according to claim 1 , characterized in that it is implemented without a separate gear system by integrating the gear wheels and electric machines into the same unit or they can also be implemented as separate units.
13. An assembly according to claim 1 , characterized in that the electric machines with their shafts and gear wheels are modules, so that they can be mounted in the frame and dismounted from it as modules.
14. An assembly according to claim 1 , characterized in that its gear wheel can be implemented by composing it from segments that can be replaced at the site of operation.
15. An assembly according to claim 1, characterized in that two electric machines can be mounted on the same shaft on either side of the gear wheel.
.16. An assembly according to claim 1, characterized in that sev-eral units can be placed on the same shaft one after the other.
17. An assembly according to claim 1 , characterized in that the shaft of each module is provided with a clutch which, e.g. in a fault situation, can disengage the pinion from the gear rim or decouple the electric machine.
18. An assembly according to claim 1, characterized in that a brake that can stop the wind power station or equivalent or hold it still can be mounted on the large gearwheel or as a part of an individual generator or in place of an individual generator.

19. An assembly according to claim 1 , characterized in that each generator separately or the shaft of the wind turbine can be provided with a power engine, which is used when no sufficient wind or other force is available.
20. An assembly according to claim 1 , characterized in that the ro-tor is secured to the shaft (E) with brackets (T).
21. An assembly according to claims 1 - 20, characterized in that in place of an individual electric machine it is possible to mount some other actuator, such as e.g. a cooling compressor, a coolant circulating pump, an oil pump, and a hydraulic pump for other functions of either the generator or the motor or the power station.
22. An assembly according to claim 1 , characterized in that the stator (S) is preferably secured to a plate-like stator frame (I) having the shape of circular sector and having holes (J) to allow it to be secured to frame brackets (U), and apertures (V) for ventilation.