Variable speed constant frequency system with generator and rotating power converter

摘要

An electric power generating system includes a brushless wound field synchronous generator 52 with n-number of power generating channels and n-number of bidirectional switches 58, 60 alternatively controlled to provide ac power at the output. Each power generating channel includes a control rotating transformer, a rotating power converter supplying power to field winding from the rotating power supply, and a center-tap single phase armature winding connected to the bidirectional switches. Rotating power converter modulates current in the field winding to obtain desired frequency and phase at the system output.