Variable magnetic flux-type permanent magnet rotary electric machine

A variable magnetic flux-type permanent magnet rotary electric machine comprising:

• a stator including an armature coil wound on a stator core;
• a rotor rotatably disposed inside the stator core of the stator with an air gap between the rotor and the stator core, the rotor including a cylindrical rotor core with a plurality of magnet slots disposed in a circumferential direction and a plurality of magnetic poles including a plurality of permanent magnets respectively fixed in the plurality of magnet slots, and
• a nonmagnetic part formed between adjacent magnetic poles of the rotor core and radially outward of the magnet slots,
• wherein a leakage magnetic flux leaking from a certain permanent magnet among the plurality of permanent magnets to a permanent magnet circumferentially adjacent on either side of the certain permanent magnet is controlled by q-axis current, a magnetic flux emanating from the certain permanent magnet and linking with the armature coil is controlled, and a magnetic flux bypass path for the leakage magnetic flux leaking from the certain permanent magnet to the permanent magnet circumferentially adjacent on either side of the certain permanent magnet is formed in a portion between the magnet slot for fixing the certain permanent magnet and the nonmagnetic part, in a portion radially inward of the nonmagnetic part, and in a portion between the nonmagnetic part and the magnet slot for fixing the permanent magnet circumferentially adjacent on either side of the certain permanent magnet.