Distributed control of a multi-pole permanent magnet synchronous generator for wind turbine application

A study of permanent magnet synchronous generator, constructed as a ring-generator, is presented in this paper. With this approach a milestone in reducing weight of wind turbines in high power applications like 10 MW generators can be reached. As proof-of-concept a scaled generator with a rated power of 200 kVA will be realized in a test bench. A distributed control and an active damping of axial mechanical vibrations approach is done. In order to achieve axial damping, the generator is divided in several electrical segments.