Single core double frequency brushless ac synchronous generator

The single-core double-frequency brushless ac synchronous generator includes machine base, stator, rotor, front end cover, rear end cover and excitation device, etc.. The stator core and rotor core are respectively equipped with a set of A.C. windings and a set of excitating windings, and a rotating rectifier is mounted on the rotor, and on a pair of stator and rotor cores two power-generating systems which possess even-times frequency-multiple each other and mutually provide excitating current, so that the initiator and main generator are integrated into one body, therefore said system structure is simplified, and the movable contact conducting link of slip-ring and brush is removed so as to eliminate electrical spark and reduce failure.