Permanent magnetism type motor of wide speed-adjusting magnetic flux memory type stator

Abstract

The invention belongs to the technical field of the permanent-magnet brushless machine manufacture, particularly to a stator permanent-magnet machine adaptable to the application fields of wide speed regulation and high efficiency, such as the mixing dynamic car and the electric automobiles, composed of a stator, a rotor, an armature winding and an NdFeB permanent magnet, characterized in that, the original NdFeB permanent magnet is saved, an ALNiCo permanent magnet and a magnetizing winding for adjusting the magnetic field strength and the magnetic flux density of the ALNiCo permanent magnet are arranged on the stator. The invention has the advantage that, the ALNiCo permanent magnet and the magnetizing winding are first inducted in the stator permanent-magnet, to cause that the flux memory type stator permanent-magnet machine inherits the advantages of large power intensity and good fault tolerant performance of the stator permanent-magnet machine, meanwhile solves the defect that it is difficult to realize the weak magnetic control, the range of the constant power speed control is small and the operating efficiency of the constant power operation is low.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet brushless motor manufacturing, in particular to a stator permanent magnet motor suitable for application occasions requiring wide speed regulation and high-efficiency operation such as hybrid vehicles and electric vehicles. Background technique [0002] In recent years, international crude oil prices have continued to soar, and energy issues and environmental pollution have become increasingly prominent. New energy-saving and new energy vehicles have received widespread attention and attention, among which hybrid vehicles and electric vehicles are developing most rapidly. As one of the key executive components of hybrid electric vehicles and electric vehicles, the driving performance of the vehicle drive motor directly affects the performance of the whole vehicle of hybrid electric vehicles and electric vehicles. The rare earth permanent magnet motor with NdFeB as the main permanent magn...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a real wide speed regulation and high efficiency flux memory stator permanent magnet motor, which will solve the problem of difficult adjustment of the air gap magnetic field of the stator permanent magnet motor, narrow speed regulation range, and constant power operation It is especially suitable for hybrid vehicles, electric vehicles and other occasions that require wide speed regulation and high efficiency operation.

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