Patent ID: 8237302

Claim:
A main circuit of an electric power generating apparatus for dispersed power supply, comprising: a permanent magnet type electric power generator driven by a windmill or waterwheel and having three windings, each of said three windings inducing different effective values of induced voltages, alternating current outputs of said permanent magnet type electric power generator being rectified by individual rectifiers, and direct current outputs of said individual rectifiers being summed up in parallel to output to an external, wherein a reactor is connected in series between a first individual rectifier and an alternating current output terminal of a first one of said three windings, said first winding inducing a lowest effective value of induced voltage among said three windings, a second reactor is connected in series between a second individual rectifier and an alternating current output terminal of a second one of said three windings, said second winding inducing a second lowest effective value of induced voltage among said three windings, and a capacitor is connected in series between a third individual rectifier and an alternating current output terminal of a third one of said three windings, said third winding inducing a highest effective value of induced voltage among said three windings, in a manner that a sum of inductive impedance by internal inductance of the third winding and capacitive impedance by said capacitor is capacitive impedance having its absolute value being decreased at an increase of number of rotations of the windmill or waterwheel within a range of rated rotational speed of said permanent magnet type electric power generator.