Mhi Vestas Offshore Wind A/s

Vestas Offshore Wind A/s

Peter Nordlyng

Mark Ursell-Smith

Kim Christensen

Morten Frost Hansen

Ken Nakayama

An offshore wind turbine generator comprises a towerand a platform. The toweris provided with a side dooraccessed from the platformusing a stairwayleading to an upper platform. The upper platformis formed from the upper surface of a cabinetwhich houses a diesel backup generator. Both the backup generator and the cabinetare mounted to the towerby bolts, such that the cabinet and backup generator are fully supported by the tower. A diesel fuel tankis also mounted to the towerby bolts. The fuel tank supplies diesel fuel to the backup generator.

Wind turbine generator assemblies

A power pack [] is located within a housing [] on the platform [] of a wind turbine generator tower. The power pack [] is supplied from a fuel tank []. With the door [] of the housing [] open, the power pack [] may be removed for servicing and repair by using a U-shaped support structure [] to which an electric motor [] is mounted. Two support rails [] permanently located within the housing [] support the housed power pack []. A chain [] attached to the power pack [] is driven by the motor [] to remove the power pack [] from the housing [] by sliding the power pack []along the support structure []. A pulley arrangement reduces the necessary torque. After removing the power pack [] from the housing [], a crane [] is used to lift the power pack [] from the platform [] and to lower it down to a sea vessel []. The crane [] may also be used in the refilling of the fuel tank [] by hauling a fuel line [] from a sea vessel up to the platform [] and connecting it to the fuel tank [

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Hobro, Denmark

Peter Nordlyng