The permanent magnet flux first starts from north poles of the neodymium-iron-boron permanent magnets disposed in the radial direction of the circumference of the rotor core. Part of the permanent magnet flux passes through the rotor core, reaches the stator core teeth through the air gaps, passes through the stator yoke, and returns to south poles of the neodymium-iron-boron permanent magnets in the same path, and part of the permanent magnet flux reaches the south poles of the aluminum-nickel-cobalt permanent magnets through the V-shaped magnetic barriers. Considering the magnetization direction of the aluminum-nickel-cobalt permanent magnet at this time, if the aluminum-nickel-cobalt permanent magnet is magnetized in the radial direction outwards along the circumferential direction, the aluminum-nickel-cobalt permanent magnet is in a flux increasing state at this time, and the two types of permanent magnet flux are superimposed and flow in the same direction. If the aluminum-nickel-cobalt permanent magnet is magnetized in the radial direction inwards along the circumferential direction, the aluminum-nickel-cobalt permanent magnet is in a flux weakening state at this time, and the two types of permanent magnet flux will be offset due to different directions. The offset permanent magnet flux will continue to flow, reach the stator core teeth through the air gaps, pass through the stator yoke, and respectively return to the south poles of the neodymium-iron-boron permanent magnets and the aluminum-nickel-cobalt permanent magnet in the same path. The distribution of magnetic induction lines of the aluminum-nickel-cobalt permanent magnets in two magnetized states is shown in FIG. 3 and FIG. 4. In the meanwhile, the armature windings of the motor are supplied with a three-phase alternating current with the same speed as the hybrid permanent magnet rotor, and the rotating magnetic fields formed by the stator and the rotor interact, thereby realizing electromechanical energy conversion. The added magnetic barrier structure can effectively reduce the quadrature axis inductance, weaken the cross-coupling demagnetization effect of the neodymium-iron-boron permanent magnets on the aluminum-nickel-cobalt permanent magnets, and improve the stability of the operating point of the aluminum-nickel-cobalt permanent magnets.