Generator design can drive the future of wind

David Milborrow, Windpower Monthly Magazine, 27 August 2010, 4:39pm

Many electrical drive options have been used by the wind turbine industry during the past 30 years, as generator technology has improved or external factors, such as more stringent grid codes, have been introduced. Direct-drive generators that eliminate the need for a gearbox are growing in popularity; their additional weight, which was once a drawback, is becoming less critical. Ongoing research may improve efficiency and lower weight.