A rotor permanent magnet dual stator axial magnetic field hybrid permanent magnet flux switching motor

Abstract

The invention discloses a rotor permanent magnet double stator axial magnetic field hybrid permanent magnet flux switching motor, which comprises a first stator installed coaxially, a second stator and a gap between the two stators and the stator. The air gap rotor is provided with permanent magnets on the rotor; the first stator, the second stator and the rotor are salient pole topological structures, and the first stator and the second stator are arranged symmetrically with respect to the rotor; the first stator, The second stator includes a stator core and an armature winding; the rotor includes rotor teeth and a magnetic winding; the motor of the present invention has a short axial length and a compact structure, which improves the torque density and power density of the motor; The hybrid permanent magnet excitation method is adopted, so that the motor not only has the characteristics of power density of traditional permanent magnet motors, but also has the characteristics of wide speed range and high efficiency of memory motors.

Description

technical field [0001] The invention belongs to the hybrid permanent magnet motor technology, in particular to a rotor permanent magnet double rotor axial magnetic field hybrid excitation flux switching motor. Background technique [0002] The permanent magnet flux switching motor usually adopts a doubly salient pole structure. The armature winding and the permanent magnet are located on the stator, and the rotor has neither winding nor permanent magnet. The structure is simple, so that the motor has high power density, high torque density, Efficiency and other advantages. Due to the inherent characteristics of permanent magnets, it is difficult to adjust the constant magnetic field of the air gap of the motor, resulting in a narrow range of speed regulation of the motor, which limits its application in the field of constant voltage power generation and wide range speed regulation drive. Therefore, the permanent magnet flux switching motor internal air gap is realized. The ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a rotor permanent magnet double stator axial magnetic field hybrid permanent magnet flux switching motor, which solves the problem of high electric excitation loss, poor overload capacity and heat dissipation efficiency of the stator permanent magnet hybrid excitation motor in the prior art. low level problem

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