| 摘要 |
The expected visual detractions posed to the environment by a wind power station play an increasingly important role in the approval and acceptance when planning and erecting wind power stations. When, for example, a wind power station is placed in the vicinity of a residential building, it is possible, at unfavorable positions of the sun, that the wind power station, i.e. the rotor thereof, is located between the sun and the residential building. When the sunshine is not obscured by clouds, the rotating rotor constantly casts a (heavy) shadow onto the property. The shadow cast by the wind power station onto the adjacent property is often perceived by the residents as being very disturbing. Even when the wind power station satisfi es the legal requirements concerning approval, it is, however, not always guaranteed that the unwanted cast shadow is prevented. The aim of the invention is to create a wind power station by means of which the control of shadows cast thereby is improved. This is achieved by a method for operating a wind power station during which a first intensity of light is detected in an area of direct incident light radiation, and a second intensity of light in a shaded area is detected. The wind power station is then switched off when th e difference between the first intensity of light and the second intensity of light is greater than a preset value. |
