Wind power plant provided with cast shadow control

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

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Details

F03D 7/00 (2006.01) F03D 11/00 (2006.01)

Patent

CA 2377851

In the planning and erection of wind power plants, the manner in which the wind power plant is expected to detract from the beauty of the environment plays an increasingly important role for approval and acceptance. If, for example, a wind power plant is placed in the vicinity of a dwelling, it is possible that the wind power plant or its rotor is located between the sun and the dwelling when the sun is at unfavorable solar altitudes. If the sunshine is not blocked by clouds, the rotating rotor constantly casts a (harsh) shadow onto the property. The shadow which is cast by the wind power plant onto the adjacent area is often perceived by the residents as being very disturbing. Also, in the instance that the wind power plant fulfills the legal requirements with regard to approval, it is not always guaranteed that the undesirable cast shadow is prevented. The aim of the invention is to create a wind power plant by means of which the problem with regard to the cast shadow is overcome. To this end, the invention provides a method for operating a wind power plant which switches off when the sun is at a predetermined solar altitude, when the luminous intensity exceeds a predetermined value (switch-off intensity). Image

Lors de la conception et de l'implantation d'installations d'énergie éolienne les influences optiques néfastes que l'installation éolienne concernée risque d'induire dans l'environnement, occupent une place de plus en plus prépondérante dans le processus d'autorisation et dans son acceptation. Si par exemple, une installation éolienne est implantée à proximité d'une maison d'habitation, il se peut qu'en cas de conditions d'ensoleillement défavorables, ladite installation éolienne ou son rotor se trouvent placé(e) entre le soleil et la maison d'habitation. Si la lumière du soleil ne subit pas l'influence de nuages, le rotor en rotation projette une ombre (portée) sur la propriété. L'ombre portée que l'installation éolienne projette sur le voisinage est fréquemment perçue comme très gênante par les riverains. Même si l'installation éolienne satisfait aux exigences en matière d'autorisation égale, il n'est pas garanti pour autant, que l'ombre portée indésirable n'interviendra pas. L'invention vis à mettre au point une installation éolienne qui permette de résoudre le problème que pose l'ombre portée. A cet effet, l'invention concerne un procédé permettant d'actionner une installation éolienne qui se coupe lorsque le soleil occupe une position prédéterminée, lorsque l'intensité lumineuse dépasse une valeur prédéterminée (intensité de coupure).

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