Floating wind turbine installation

Abstract

A method for coordinating wind turbine equipment. The wind turbine installation comprises: a floating base (1); a tower (2) arranged on the floating base; a generator housing (3) mounted on the tower and an anchor line arrangement connected to an anchor or an anchor point on the seabed (5), the generator casing (3) can rotate relative to the wind direction and is equipped with a wind rotor (4). The static heel angle φs_max in the case of full wind load acting on the wind turbine is as low as possible, but preferably less than 8 degrees, and all natural periods of the equipment are outside the periodic range of waves, and the fixed period T05 in pitch (sway T04) is preferably less than 80% of the fixed period T03 in lifting and lowering. Also, the ratio between T03 and T05 is not close to 0.5 or 1.

Description

technical field

[0001] The invention relates to a floating wind turbine installation and a method for coordinating hydrostatic and hydrodynamic performance of a wind turbine installation. Such a wind turbine installation comprises a floating base, a tower arranged on the floating base, a generator housing mounted on the tower and an anchor line arrangement connected to an anchor or an anchoring location on the seabed. The generator casing can rotate relative to the wind direction and is equipped with a wind rotor, Background technique

[0002] The development of floating anchored wind turbines that can be used at greater depths will greatly increase the ability to access offshore areas to expand wind energy utilization. Existing technology for wind turbines deployed offshore is limited to permanently installing towers at low ground depths, below about 30m.

[0003] Permanent installations at depths greater than 30m often create technical problems and are costly. This mean...

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