Disclosed is a generator including an inner stator including an inner stator winding, an outer stator including an outer stator winding and a rotor disposed between the inner stator and the outer stator. The rotor includes a first set of permanent magnets disposed axially, the first set of permanent magnets having a first polarity and a second set of permanent magnets disposed axially, the second set of permanent magnets having a second polarity that is opposite of the first polarity, wherein the first and second sets of permanent magnets are arranged circumferentially in alternating fashion.