Contract to supply pitch systems
Beginning delivery in 2011, REpower will supply 48 wind turbines, each with Moog pitch control systems, to RWE Innogy GmbH to construct Nordsee Ost. Nordsee Ost (North Sea East) is the first project under a framework agreement concluded between REpower and RWE Innogy in February 2009 for the delivery of up to 250 offshore 5 MW and 6 MW turbines. The wind farm will be approximately 40 km (25 mi) offshore from the German island of Juist.
Moog’s pitch systems, found in the hub of the wind turbine, consist of robust control boxes containing servo drives, called PITCHmaster® II, Pitch Drive Motors; optional Battery Management Systems; a control system including software for remote diagnostics and back-up power. If the wind turbine loses electrical power, then the pitch system puts the turbine blades off-wind into a safe operating mode that is to protect the wind turbine from damage.