Patent ID: 8659439
Filing Date: 2014-02-25
Classification: F03D,F05B,Y02E

Abstract:
1. An offshore wind farm comprising: at least two wind energy installations configured to generate electrical power from wind; at least two acoustic warning devices, wherein the at least two acoustic warning devices each comprise a volume module configured to set the volume of the acoustic signals; a visibility measuring device configured to detect visibility, wherein after detection of a visibility below a visibility limit value by the visibility measuring device, an activation signal is applied to the at least two acoustic warning devices; a synchronization module configured to determine the points in time of acoustic signals to be emitted by at least one of the acoustic warning devices in relation to acoustic signals of the other or at least one of the other acoustic warning devices; and a wind determining device configured to detect wind direction and wind strength, wherein the wind determining device acts on the volume signal applied to the volume module of at least one acoustic warning device.