Novel multiphase doubly salient permanent magnet motor

Abstract

The invention discloses a novel multiphase doubly salient permanent magnet motor. The novel multiphase doubly salient permanent magnet machine comprises a stator iron core, armature windings, permanent magnets and a rotor iron core, wherein the stator iron core is composed of a plurality of split stator iron cores. Each split stator iron core is provided with a plurality of stator salient poles which are distributed at certain intervals. A stator groove is formed by every two adjacent stator salient poles. Wire turns of the armature windings are embedded into the stator grooves. Every two adjacent wire turn sections in each armature winding are across more than three stator salient poles. An interval is formed between every two adjacent split stator iron core yoke portions to form a yoke portion groove. The permanent magnets are fixed in the yoke portion grooves. Rotors are of salient poles structures and are free of the permanent magnets and coil windings.

Description

technical field [0001] The invention relates to a magnetic flux switching motor, including a motor and a generator, in particular to a novel multi-phase double-salient pole permanent magnet motor, which belongs to the field of electrical equipment drive and motor manufacturing. [0002] Background technique [0003] Motor-driven equipment consumes most of the industrial energy. In order to promote energy conservation, new motor standards are constantly appearing in the world, which have higher requirements for efficiency and power density. At present, asynchronous motors still occupy a certain position in the industrial field. Most of the industrial energy, to improve its efficiency, requires complex processes; rotor permanent magnet permanent magnet motors are complicated to install because the permanent magnets are on the rotor, and it is not easy to adjust the magnetism. The above two AC motors are limited by speed regulation The range is limited, and the manufacturing p...

AI Technical Summary

Problems solved by technology

[0005] The stator permanent magnet double salient pole motors that appear at present generally have armature windings wound on the salient poles of the stator to form a centralized winding. Through the electromotive force of the armature windings, the switching of the permanent magnet excitation flux on different salient poles is adjusted. However, it has the obvious problem of low slot full rate, and because the magnetic flux of the armature winding turn chain is unipolar, the inductance is small, resulting in small counter electromotive force, which makes the material and space utilization of this kind of motor low

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