ROTATING ELECTRICAL MACHINE

摘要

PROBLEM TO BE SOLVED: To reduce torque ripple of a rotating electrical machine. SOLUTION: The rotating electrical machine has: a rotor 13 which includes a magnetic flux generating member that adds up and generates the magnetic flux of permanent magnets equivalent to the number of a plurality of different magnetic poles on its surface; and a stator 12 which adds up a plurality of current fields corresponding to the number of plural magnetic poles and gives a current for rotating the rotor 13. In the machine, permanent magnets 131N and 131S are arranged so that the widths of magnetic poles for the gap magnetic flux density of an N pole and an S pole that constitute one pole pair of a rotor 13 may be different from each other. COPYRIGHT: (C)2010,JPO&INPIT