A twin field rotor (5A and 5B) three-phase AC compound generator constituted by combining a repulsion electromagnetic induction three-phase AC generator and an existing attraction electromagnetic induction three-phase AC generator in which power generation efficiency is enhanced sharply. A three-phase AC compound armature combination output circuit and a three-phase AC full-wave rectification output circuit for enhancing power generation efficiency by offset effect for combining the repulsion electromagnetic force energy and attraction magnetic force energy of the twin field rotor (5A and 5B) three-phase AC compound generator by the twin field rotor (5A and 5B) are also provided.
