Stator partition type hybrid excitation motor with built-in magnetic field adjusting ring structure

Abstract

The invention discloses a stator partition type hybrid excitation motor with a built-in adjustable magnetic ring structure. The motor comprises an outer stator, a rotor and an inner stator, the outer stator (1) and the rotor (2) are separated by an air gap, and the inner stator (3) and the rotor (2) are separated by an air gap; 12 outer stator teeth are uniformly arranged on the outer stator (1) along the circumferential direction, and armature windings (4) are wound on the outer stator teeth; 12 inner stator teeth are uniformly arranged on the inner stator (3) along the circumferential direction, a centralized excitation winding (5) is wound on the inner stator teeth, 12 permanent magnets (6) are uniformly inserted into a yoke part of the inner stator along the circumferential direction, each permanent magnet is magnetized in the tangential direction, the difference between the magnetizing directions of the two adjacent permanent magnets is 90 degrees, and 6 alternating magnetic bridges (7) are uniformly arranged on the inner side of the inner stator (3) and connected with a magnetism adjusting ring (8); and the middle rotor is composed of seven magnetism adjusting blocks which are evenly arranged. According to the invention, the output torque can be adjusted up and down according to the requirements of application occasions, and the flexibility is high.

Description

technical field [0001] The invention relates to a permanent magnet motor structure, in particular to a stator partition type hybrid excitation motor structure with a built-in magnetic adjustment ring structure, which belongs to the field of electric engineering and motors. Background technique [0002] In recent years, flux-switching motors have been extensively studied due to their high torque and simple rotor structure. It has broad application prospects in many fields such as wind power generation and electric vehicles. [0003] The so-called permanent magnet flux switching motors are generally divided into stator permanent magnet type in which permanent magnets are installed on the stator and rotor permanent magnet type in which permanent magnets are installed on the rotor. With the continuous deepening of research on permanent magnet flux switching motors, scholars have found that the flux adjustment capabilities of these two types of flux switching motors are poor. I...

AI Technical Summary

Problems solved by technology

However, the topology of the stator partitioned hybrid excitation motor also has a disadvantage, that is, the internal stator reluctance weakens the strength of the working magnetic field

This shortcoming limits the improvement of the torque density of the stator partition hybrid excitation motor

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