Power conversion system and method for a rotary power generation system

A power generation system (42) includes a rotary power generator (12) for generating a variable-frequency alternating current, a generator side converter (52) for converting the variable-frequency alternating current into a DC current, a DC link (54) coupled to the generator side converter for receiving the DC current, a line side converter (56) coupled to the DC link for converting the DC current into an alternating current with controlled amplitude or frequency, a generator side controller (60) for receiving a DC link voltage command signal and a DC link voltage feedback signal and generating control signals for the generator side converter, and a line side controller (62) for receiving a generator torque command signal and a generator torque feedback signal and generating control signals for the line side converter.