Birotor axial hybrid excitation doubly salient motor

Abstract

The invention discloses a birotor axial hybrid excitation doubly salient motor, which comprises a rotating shaft, a first rotor iron core, a second rotor iron core, a first stator iron core, a second stator iron core, a rotor side magnetizer, a stator side magnetizer, an axially magnetized permanent magnet, an annular excitation coil and an armature winding, wherein the first stator iron core is coaxially aligned with the first rotor iron core, and the second stator iron core is coaxially aligned with the second rotor iron core; the rotor side magnetizer is positioned among the first rotor iron core, the second rotor iron core and the rotating shaft; the stator side magnetizer is arranged on the outer sides of the first stator iron core and the second stator iron core; the axially magnetized permanent magnets are arranged in the center of the stator side magnetizer and are symmetrically arranged; the annular excitation coil surrounds the rotating shaft and is arranged between the first rotor iron core and the second rotor iron core; and the armature winding is wound on the first stator iron core and the second stator iron core through stator teeth. Bidirectional change of the magnetic linkage can be realized, and positive and negative magnetic linkages exist; and the birotor axial hybrid excitation doubly salient motor is of an active rotor structure and, and the power density of the motor can be improved.

Description

technical field [0001] The invention relates to a hybrid excitation double salient pole motor, in particular to a dual rotor axial hybrid excitation double salient pole motor. Background technique [0002] Hybrid excitation doubly salient motors inherit the advantages of simple structure and high reliability of doubly salient motors. At the same time, the existence of permanent magnets improves the power density and efficiency compared with electric excitation doubly salient motors, and the existence of excitation windings improves Difficult problems in voltage regulation and field weakening of doubly salient permanent magnet motors. Therefore, the hybrid excitation doubly salient motor has broad application prospects. [0003] The University of Sheffield in the United Kingdom proposed a stator partition hybrid excitation double salient pole motor. Its outer stator and inner stator are wound with non-overlapping armature windings and field windings, and a 10-point stator is...

AI Technical Summary

Problems solved by technology

Its disadvantage is that the magnetic flux generated by the integrated stator winding will pass through the permanent magnet, and the large reluctance of the permanent magnet affects the further improvement of the overall performance and efficiency

[0007] The armature windings of the existing axially excited hybrid excitation doubly salient motors are wound in sections and then connected in series, which cannot achieve sinusoidal output

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