Permanent Magnet Flux Switching Motor with Complementary Winding Rotor

Abstract

The invention discloses a rotor permanent magnet flux switching motor with complementary windings, which comprises a stator core and a rotor module; the stator core and the rotor tooth module are salient pole structures; the stator core is provided with armature windings and fault-tolerant teeth, The armature winding is a centralized winding, which adopts a half-tooth winding structure, and there are fault-tolerant teeth between two adjacent armature windings; the rotor module includes a rotor tooth module and a shaft, and the rotor tooth module is fixed on the shaft; the rotor tooth module includes Surface permanent magnets, built-in permanent magnets and several groups of rotor magnetic teeth. The winding of the present invention adopts a complementary structure, which effectively suppresses the generation of high-order harmonics in the no-load induced potential, improves the sinusoidal characteristics of the no-load induced potential waveform, adds fault-tolerant teeth to the stator core, changes the structure of the main magnetic circuit, and effectively suppresses the positioning torque , to reduce the output torque fluctuation.

Description

technical field [0001] The invention relates to the field of motors, in particular to a winding complementary rotor permanent magnet flux switching motor. Background technique [0002] The traditional rotor permanent magnet synchronous motor rotor magnetic circuit structure is generally divided into two types: surface type and built-in type, and the armature winding arrangement is generally divided into centralized winding or distributed winding. The use of centralized windings can effectively reduce the length of the end windings, reduce copper consumption, and improve efficiency, but the harmonic content of the no-load induced potential waveform is large, and it is difficult to use sine wave control; the use of distributed windings has better no-load induced potential sinusoidal characteristics , but the end of the winding is longer and the copper loss is larger. [0003] In recent years, the stator permanent magnet flux switching motor has received extensive attention. I...

AI Technical Summary

Problems solved by technology

[0010] Purpose of the invention: To overcome the disadvantages of existing rotor permanent magnet synchronous motors with large no-load induced potential harmonic content and long end windings, as well as the low space utilization ratio of the stator side and rotor side of the stator permanent magnet flux switching motor Insufficient, the present invention provides a rotor permanent magnet flux switching motor with complementary windings, which solves the deficiencies of the prior art

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