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Machine translation
1. (WO1981001444) WINDMILL TRANSMISSION AND CONTROL SYSTEMS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001444    International Application No.:    PCT/SE1980/000283
Publication Date: 28.05.1981 International Filing Date: 12.11.1980
IPC:
F03D 7/02 (2006.01)
Applicants:
Inventors:
Priority Data:
7909379 14.11.1979 SE
Title (EN) WINDMILL TRANSMISSION AND CONTROL SYSTEMS
(FR) SYSTEMES DE TRANSMISSION ET DE COMMANDE D"UNE EOLIENNE
Abstract: front page image
(EN)A wind-power plant in which the variable input speed of a variable wind turbine is converted to a substantially constant output speed of an electric generator comprises a speed holding system arranged between the output shaft (2) of the wind turbine (1) and the input shaft of the generator (26). This speed holding system includes at least one speed variator (20) connected to a signal processing device (25). The variator (20) is connected, via a variator shaft (21), to a first gear (22) of a planet gear arrangement. The first gear (22) meshes with a second gear (13) which is fixedly connected to a gear ring (11). This gear ring (11) is fixedly connected to the output shaft (2) of the turbine (1), the arrangement being such that in the event of a change in wind speed, the rotational speed of the generator input shaft is maintained constant as the blade-pitch is changed in response to said change in wind speed.
(FR)Une centrale d"energie eolienne dans laquelle la vitesse d"entree variable d"une turbine a vent variable est convertie en une vitesse de sortie sensiblement constante d"un generateur electrique comprend un systeme de maintien de la vitesse dispose entre l"arbre de sortie (2) de la turbine a vent (1) et l"arbre d"entree du generateur (26). Ce systeme de maintien de la vitesse comprend au moins un variateur de vitesse (20) connecte a un dispositif de traitement de signaux (25). Le variateur (20) est connecte, via un arbre de variateur (21), a un premier engrenage (22) d"un dispositif a engrenages planeaires. Le premier engrenage (22) s"engrene avec un second engrenage (13) qui est connecte de maniere fixe a une bague d"engrenage (11). Cette bague (11) est connectee de maniere fixe a l"arbre de sortie (2) de la turbine (1), le montage etant concu de maniere a ce que dans l"eventualite d"un changement de vitesse du vent, la vitesse de rotation de l"arbre d"entree du generateur soit maintenue constante au fur et a mesure que l"inclinaison des aubes change en reponse au changement de vitesse du vent.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)