F - Mech Eng,Light,Heat,Weapons – 03 – D
Patent
F - Mech Eng,Light,Heat,Weapons
03
D
F03D 7/00 (2006.01) F03D 7/04 (2006.01) F03D 11/00 (2006.01)
Patent
CA 2376646
In the planning and implementation of wind parks, the levels of sound emission to be expected are playing an increasingly important part in terms of approval and acceptance. The sound immission calculations which are required for that purpose are generally based on measured sound output levels (L W) of the wind power installations and are implemented with current software programs. Sound immission measurements are also taking place more and more frequently so that the sound level of an individual installation or the sound level of an entire wind park can be ascertained at a given immission point (outside or within the wind park). If the immission point is an individual house, a housing estate or the like, there a certain sound output level must be observed at least over given periods of time, for example between 10 pm and 6 am, in accordance with the statutory provisions and the provisions relating to planning policy. It is also not permitted for the sound output level at an immission point, for example a housing estate, to rise beyond all measure during the day. Therefore the object of the present invention, in spite of observing sound output limit values at one or more immission points, is to maximize the energy yield of the wind park according to the respective time of day, wind direction and wind strength. The invention concerns a method of operating a wind park comprising at least one wind power installation, wherein the (maximum) rotary speed of a wind power installation is set in dependence on the wind direction and/or the wind strength and/or the time of day, in such a way that a predetermined sound level is not exceeded at a predetermined immission point. The object is also attained by means of a method as set forth in claim 6, claim 7 or claim 8. Advantageous developments are set forth in the appendant claims.
L'invention concerne un procédé permettant à un système de turbines éoliennes de respecter le niveau sonore maximal admis selon la législation sur les nuisances. Ce procédé consiste tout d'abord à réduire la vitesse de rotation du rotor de la turbine dès que des valeurs prescrites pour le niveau sonore, la vitesse du vent, le sens du vent et les horaires sont atteintes. Il consiste également à installer une turbine éolienne, dont la vitesse de rotation n'est pas réduite, du côté abrité d'une première turbine éolienne à vitesse de rotation réduite.
Oyen Wiggs Green & Mutala Llp
Wobben Aloys
LandOfFree
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