Double-stator hybrid excitation type axial magnetic field flux switching motor

Abstract

The invention discloses a double-stator hybrid excitation type axial magnetic field flux switching motor, which comprises a first stator, a second stator and a rotor, wherein the first stator and thesecond stator are coaxially installed, the rotor is located between the two stators, an air gap is reserved between the rotor and the two stators, the first stator and the second stator are the same in structure and are symmetrically arranged relative to the rotor, each stator comprises six double-tooth pi-shaped magnetic conductive iron cores, six permanent magnets, six centralized armature coilsand six centralized excitation coils, the double-tooth pi-shaped magnetic conductive iron cores and the permanent magnets are alternately placed to form a stator disc, the permanent magnets are magnetized in the tangential direction of parallel permanent magnets, the magnetizing directions of the adjacent permanent magnets are opposite, the magnetizing directions of the two symmetrical permanentmagnets on the first stator and the second stator are opposite, and a magnetic conductive bridge is arranged at the end portion of the permanent magnet. The double-stator hybrid excitation type axialmagnetic field flux switching motor has the advantages of convenient adjustment of the air-gap magnetic field of the electro-magnetic motor and wide speed regulation range.

Description

technical field [0001] The invention belongs to the technical field of hybrid excitation motors, in particular to a double-stator hybrid excitation type axial magnetic flux switching motor. Background technique [0002] Doubly salient pole permanent magnet motor has the advantages of high power density, high efficiency and high reliability, but its air gap magnetic field is only established by permanent magnets, which has the disadvantage that the air gap magnetic field is difficult to adjust. The air gap magnetic field of the hybrid excitation motor is jointly established by the permanent magnet and the DC excitation winding. By adjusting the magnitude and direction of the DC excitation winding current, the size of the air gap magnetic field can be easily adjusted. It is used in the fields of automobile traction, wind power generation, industrial transmission and aerospace Has a broad space for development. [0003] However, the traditional series magnetic potential type h...

AI Technical Summary

Problems solved by technology

However, the common disadvantages of current hybrid excitation flux switching motors are that the field adjustment range is not wide enough, and the cogging torque and harmonic components are relatively large, which limits its application in wide-speed drive systems.

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