455
found in the bearings. Basically the hub is connected to the blades
in a rigid way as the rotor is to the generator, and is carried by two
roller bearings. In Fig. 19.10, the bearing concept introduced by
Enercon can be seen—the rotor hub is carried by a small locating
stored slightly in front of the two bearings.
Figure 19.10 Enercon concept drawing (Image: author).
A further innovation to simplify the direct driv ...