A stator partition type hybrid excitation motor with built-in magnetic control ring structure

Abstract

The invention discloses a stator partition type hybrid excitation motor with a built-in magnetic adjustment ring structure, which includes 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; the outer stator (1) is evenly provided with 12 outer stator teeth along the circumferential direction, and the armature winding (4) is wound on the outer stator teeth; the inner stator (3) There are 12 inner stator teeth evenly arranged along the circumferential direction, and a centralized excitation winding (5) is wound on the inner stator teeth, and 12 permanent magnets (6) are evenly inserted into the inner stator yoke along the circumferential direction, and each permanent magnet is cut For magnetization, the inside of the inner stator (3) is evenly provided with 6 alternating magnetic bridges (7) connected to the magnetic adjustment ring (8); the intermediate rotor is composed of 7 magnetic adjustment blocks evenly placed. The invention realizes that the output torque can be adjusted up and down according to the requirement of the application occasion, and has superior flexibility.

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 regulating ring structure, belonging to the fields of electricians 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 motor is generally divided into two types: a stator permanent magnet type in which the permanent magnet is installed on the stator and a rotor permanent magnet type in which the permanent magnet is installed on the rotor. With the deepening of the research on permanent magnet flux-switching motors, scholars have found that the flux regulation ability of these two types of flux-switching motors is poor. In order...

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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