Four-phase permanent magnet doubly salient motor

Abstract

The invention provides a four-phase permanent magnet doubly salient motor, which comprises a stator iron core, a rotor iron core, a permanent magnet body, a four-phase armature winding and a shaft. The four-phase permanent magnet doubly salient motor belongs to the technical field of a special motor. The stator iron core is provided with 6X stator poles, wherein the end parts of the 2X stator poles with the pole-arc coefficients being the 45 / X-degree mechanical angle are fixed with permanent magnets; two stator poles with armature windings are arranged between any two stator poles with the permanent magnets; the pole-arc mechanical angle of the stator poles with the armature windings is 27 / X degrees; armature groves are formed between the stator poles with the armature windings and the stator poles with the permanent magnets; the mechanical angle of the arc length of the armature groove notch is 27 / X degrees; the rotor iron cores have five uniformly distributed stator poles; the rotor pole-arc mechanical angle is 36 / X degrees. Through the motor stator and rotor pole pole-arc mechanical angle combination, the motor impulsive nose is reduced; the characteristics of higher efficiency and higher reliability are realized. Exciting windings are wound on the stator poles with the permanent magnets in another embodiment of the invention; the high-speed weak magnetic control and the power generation voltage stabilization control of the motor are further realized.

Description

technical field [0001] The invention relates to a four-phase permanent magnet double salient pole motor, which belongs to the technical field of special motors. Background technique [0002] The performance of permanent magnet motor is superior, but the cost and complexity of its drive control system affect its application. The switched reluctance motor has many advantages such as good control performance, simple control, and low cost. By introducing permanent magnet materials on the basis of switched reluctance motors, double salient pole permanent magnet motors are obtained. Low, pulsating noise and other issues. [0003] Since the 1990s, with the successful development of new high energy product permanent magnet materials, a new type of permanent magnet motor with double salient pole structure has appeared. It inherits the simplicity of the doubly salient motor and has many advantages of the permanent magnet motor at the same time. Scholars from all over the world hav...

AI Technical Summary

Problems solved by technology

[0007] At present, there have been research reports on four-phase and five-phase permanent magnet double salient pole motors, and there are also many research reports on the innovation of stator and rotor structure of double salient pole motors, but so far no research on permanent magnet double salient pole stator and rotor pole arcs has been found. Research Report on Combinatorial Innovation of Mechanical Angles

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