A doubly salient magnetic flux controllable motor with few rare earth yoke complementary

Abstract

The invention discloses a little-rare earth tooth-yoke complementary doubly salient magnetic flux controllable motor in a motor field. The interior center of a rotor core is coaxially provided with a stator, a stator core consists of an outer stator and an inner stator, the outer stator consists of a plurality of outer stator units uniformly arranged along the circumferential direction, and each outer stator unit consists of three outer stator teeth such as a left tooth, a middle tooth, a right tooth as well as an outer stator yoke; the outer ring surface of each middle tooth is fixedly attached to a radial magnetizing neodymium ion boron permanent magnet, and a radial magnetizing aluminum nickel cobalt permanent magnet is fixedly embedded between every inner stator tooth and the corresponding outer stator yoke; the magnetizing direction of the aluminum nickel cobalt permanent magnet and the neodymium ion boron permanent magnet connected onto the same outer stator unit are opposite; an armature winding is wound on the outer stator teeth, and a flux adjusting pulse winding is wound on the inner stator teeth; and the using amount of rare earth permanent magnets is used, so that the size of magnetic flux can be controlled, and the copper consumption of an exciting winding can also be reduced.

Description

technical field [0001] The invention belongs to the field of motor manufacturing, in particular to a hybrid excitation double salient pole permanent magnet motor. Background technique [0002] Double salient pole permanent magnet motor is a new type of electromechanical integrated AC speed regulating motor proposed with the emergence of permanent magnet materials and the development of power electronics, computers, and control theory. It is developed from switched reluctance motors. The permanent magnet is embedded in the stator yoke of the traditional switched reluctance motor, which makes it have the characteristics of high power density and high efficiency of the permanent magnet motor. At the same time, it inherits the rotor structure of the switched reluctance motor, and there is no winding or permanent magnet on the rotor. , so as to avoid the irreversible demagnetization phenomenon caused by the shedding of the magnetic steel and the temperature rise of the rotor duri...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing in the existing doubly salient pole permanent magnet motor, and provide a rare earth tooth yoke with low copper loss, high efficiency, less rare earth permanent magnet consumption, low torque ripple and wide speed regulation range Complementary Doubly Salient Flux Controllable Motors

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