A Double-Stator Magnetic Concentration-Reluctance Hybrid Rotor Motor

Abstract

The present invention discloses a double-stator magnetism gathering-magnetoresistive hybrid rotor motor. The motor comprises an outer stator (1), a permanent magnet reluctance hybrid rotor (2), and aninner stator (3); the two stators of the outer stator (1) and the inner stator (3) are coaxially mounted and there is an angular offset between the in-phase central axis of the two stators; the rotoris a hybrid rotor of a magnetizing permanent magnet (2.1) and a multi-layer reluctance magnetic barrier (2.2). The motor can solve the defects that the utilization ratio of the permanent magnet torque and the reluctance torque component of the traditional built-in permanent magnet motor is low and is hard for a design to have high permanent magnet torque and high reluctance torque component at the same time, realize that the permanent magnet torque and the reluctance torque component reach the maximum value at the same internal power factor angle through the offset between the centerlines ofthe straight axis of the two stators, and fully improve the space utilization rate to further improve the torque density of the motor.

Description

technical field [0001] The invention relates to a permanent magnet motor technology, which belongs to the technical field of double-stator hybrid rotor motor design. Background technique [0002] Permanent Magnet Synchronous Machine (PMSM) has the advantages of high power density, high efficiency, reliable operation and strong overload capacity due to the use of traditional rare earth permanent magnet materials with high magnetic energy product (such as NdFeB). important direction of development. Thanks to the development of rare earth permanent magnet materials and power electronics technology, PMSM has largely replaced electric excitation motors in the small and medium power field, and has been widely used in various fields such as aerospace, national defense, industrial and agricultural production, and daily life. [0003] The built-in PMSM places the permanent magnet inside the reluctance rotor. Due to the existence of its salient pole torque, it can realize the improve...

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Problems solved by technology

[0005] Technical problem: The technical problem to be solved by the present invention is to provide a double-stator magnetic concentration-reluctance hybrid rotor motor, which combines the advantages of the magnetic concentration permanent magnet motor and the reluctance motor, and solves the problem of the permanent magnet of the traditional built-in permanent magnet motor. There are deviations in the optimal current angle of the torque component and the reluctance torque component, which cannot be independently designed, the utilization rate is not high, and the torque density is limited.

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