The Damper Cage in Synchronous Generators with Hybrid Permanent Magnet for Hydropower Applications

Using hybrid coils, regulating Permanent magnet Synchronous Generators without electronic conversion devices is possible. These coils are placed around the magnets and regulate the voltage and power factors. On the other hand, the presence of damper winding required a preliminary study concerning the combination and operation of two winding systems on the rotor. Several configurations are analyzed using the finite element method, and different parameters are considered to select the most promising one.