United States

United States

Danotek creates 7MW PMG for offshore use

UNITED STATES: US energy converter system firm Danotek has introduced a 7MW class offshore permanent magnet generator for the growing large offshore wind turbine market.

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The new generator will be scaled for both direct-drive and medium-speed drive trains.

Traditional doubly-fed induction generators have the disadvantage of requiring extensive and costly routine servicing of their brush gear and slip-rings. Permanent magnet generators avoid this maintenance need.

Earlier this year a consortium led by the US National Renewable Energy Laboratory, which includes Danotek was one of six groups assigned by the Department of Energy to advance next-generation designs for wind-turbine drivetrains.

The aim is to develop drivetrains of 10MW or more.

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