REpower Systems AG has received the first unit certificate from Germanischer Lloyd for new turbines in its turbine portfolio. The certificate is the first ever that has been issued for a wind turbine (generation unit) with a double-fed generator system.
The measurements required for the certification were conducted on a REpower MM82 with a rated power of 2.05MW, located at the Dollerup wind farm near Flensburg. In order to obtain the certification, simulation models for the characteristics of the wind turbine on the grid needed to be further developed and then validated by comprehensive tests in real operation. The unit certificate is required for new generator systems in conformance with the Renewable Energy Sources Act (EEG) and the System Service Ordinance (SDLWindV) which went into effect last year. Both regulations establish wideranging technical and operational requirements for wind turbines.