Hybrid excitation magnetic linkage parallel double-rotor combined motor

Abstract

The invention discloses a hybrid excitation magnetic linkage parallel double-rotor combined motor which comprises stator iron cores, permanent magnets, internal motor magnetic conductive teeth, external motor magnetic conductive teeth, internal armature windings, external armature windings, excitation windings, an internal rotor and an external rotor. 'U'-shaped structures are formed by the internal motor magnetic conductive teeth and stator yokes, and 'T'-shaped structures are formed by the external motor magnetic conductive teeth and the stator yokes; the internal armature windings are wound on internal motor magnetic poles jointly formed by the internal motor magnetic conductive teeth and the permanent magnets, and the external armature windings and the excitation windings are wound on the external motor magnetic conductive teeth. The hybrid excitation magnetic linkage parallel double-rotor combined motor has the advantages that two motor systems are integrated in motor spaces, internal and external motor magnetic circuits are parallel to one another, two power paths are formed and can be independently controlled, permanent magnetic fields can be adjusted by the aid of the excitation windings, accordingly, load requirements of the motor in different working states can be met, and the reliability and the flexibility of the systems can be improved.

Description

technical field [0001] The invention belongs to the technical field of motor manufacturing, and in particular relates to a hybrid excitation flux linkage parallel double-rotor compound motor. Background technique [0002] The traditional stator permanent magnet flux switching motor has the characteristics of high torque density and power density. The stator and rotor are salient pole structures. The permanent magnets and armature windings are located on the stator side. The magnet has simple structure, high mechanical strength, is suitable for high-speed operation, and can operate under relatively harsh environmental conditions. However, the traditional stator permanent magnet flux switching motor only adopts a single rotor structure, that is, only has an outer rotor or an inner rotor, and has a single working mode. [0003] Document 201210274466.1 proposes a compound flux switching motor structure, which adopts a dual-rotor motor structure. The inner and outer motors are i...

AI Technical Summary

Problems solved by technology

However, due to the structure of the composite motor, the stator yokes of the two motors are separated by a magnetic isolation ring, and in order to prevent the magnetic field coupling of the internal and external motors, the thickness of the stator yoke must be relatively large, thereby increasing the volume of the motor

Images