Parallel-serial magnetic path memory motor

Abstract

The invention discloses a parallel-serial magnetic path memory motor. The parallel-serial magnetic path memory motor comprises a hybrid permanent-magnet rotor, a stator, an armature winding and a rotation shaft, wherein the armature winding is arranged on the stator, the stator is arranged outside the hybrid permanent-magnet rotor, the hybrid permanent-magnet rotor comprises a rotor core, first permanent magnets, second permanent magnets, third permanent magnets and triangular magnetic obstacles, the first permanent magnets are arranged at the rotor core in a straight-line shape, the triangular magnetic obstacle is arranged between two of the first permanent magnets, the second permanent magnets and the third permanent magnets form V-shaped hybrid permanent magnets, the V-shaped hybrid permanent magnets are symmetrically arranged at two sides of the triangular magnetic obstacles, and the first permanent magnets and the second permanent magnets form series magnetic paths. By the parallel-serial magnetic path memory motor, the problems of narrow series-type magnetic modulation range and demagnetization seriousness by parallel cross coupling in a traditional built-in permanent-magnetmemory motor can be solved, the motor torque density is improved, and the full-working condition running range of the motor can be expanded.

Description

technical field [0001] The invention relates to a permanent magnet memory motor, in particular to a hybrid magnetic circuit memory motor, which belongs to the technical field of motors. 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] Ordinary permanent magnet synchronous motor (PMSM) due to the inherent characteristics of ordinary permanent magnet materials (suc...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the above-mentioned prior art, the present invention provides a hybrid magnetic circuit memory motor, which solves the problems of a single series magnetic circuit type memory motor such as a narrow range of magnetic modulation, full magnetizing current, and excessive capacity of the inverter. However, the single parallel magnetic circuit type memory motor has problems such as severe demagnetization and low torque density of AlNiCo permanent magnets during operation with load.

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