Alternating current generator having a plurality of independent three-phase windings

An alternating current generator comprising:

• a frame for defining an accommodation space therein;
• a substantially cylindrical armature core rigidly supported in the accommodation space of said frame and having a plurality of slots axially extending along an inner wall thereof;
• first and second sets of three-phase windings wound respectively being inserted in said plurality of slots so that the respective sets of three-phase windings are arranged with a phase difference of electrical angle of .pi./6 radians therebetween;
• a field rotor comprising:
• a field core having a pair of opposed rotor pole cores and rotatably disposed inside said armature core, each of said rotor pole cores having P/2 claw poles wherein P is an even number;
• and a field winding wound around said rotor pole cores;
• and
• three-phase rectifiers connected with said first and second sets of three-phase windings for rectifying an output generated therefrom,
• said claw poles having a substantially trapezoidal peripheral shape, and said armature core having 6P slots.