Medium-speed wind power generators

ABB generatorABB is introducing a semi-integrated permanent magnet generator. The new generator design offers a reliable solution for multi-MW offshore wind turbines. The semi-integrated, medium-speed generator covers the power range up to 8 MW and more. In this new modular design, the generator and medium-speed gear are integrated via a flange connection. Using separate drivetrain components results in low lifting weights and enables dismounting for servicing. For OEM’s, the new semi-integrated design offers a fast route to serial production of large, offshore turbines. Medium-speed solutions deliver many benefits. A slower speed design is more reliable for large offshore powers, and MS PMGs are also compact in size and offer low top-head mass. Low weight means easier logistics, as well as lower tower and foundation cost. MS PMGs offer the highest efficiency (>98 %) of any commercial wind generator design. Efficiency is also high at partial loads in low wind conditions, enabling the largest annual production of kWh’s.

ABB
www.abb.com
 


Volume: January/February 2012