A Hybrid Magnet Flux Switching Memory Motor

Abstract

The present invention discloses a hybrid magnet flux switching memory motor. The stator of the motor includes n iron core units, n / 2 high-coercivity permanent magnets and n / 2 low-coercivity permanent magnets; the n / 2 high-coercivity permanent magnets are magnetized in a tangential direction; grooves are formed between every two adjacent iron core units; the n / 2 high-coercivity permanent magnets and the n / 2 low-coercivity permanent magnets are embedded into n grooves; the types of permanent magnets embedded in adjacent grooves are different; and the magnetization directions of adjacent high-coercivity permanent magnets are identical; each low-coercivity permanent magnet is provided with a magnetic pulse adjustment coil; the directions of current entering adjacent magnetic pulse adjustment coils are identical; and all the magnetic pulse adjustment coils are connected in series to form a magnetic pulse adjustment winding. With the hybrid magnet flux switching memory motor of the invention adopted, the defects of a traditional hybrid excitation flux switching motor can be eliminated, excitation loss can be reduced, and the efficiency of the motor can be improved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a hybrid magnetic steel magnetic flux switching memory motor, which is suitable for wide speed regulation operation occasions. Background technique [0002] The permanent magnet steel and armature winding of the flux switching permanent magnet motor are located on the stator, and there is neither winding nor permanent magnet on the rotor. It has simple structure, reliable operation, easy heat dissipation, and has high power density, high efficiency, and load It has the characteristics of strong ability and high sinusoidal back EMF, so it is considered to be a structure most likely to replace the rotor type permanent magnet motor. [0003] However, because only the permanent magnets are excited, its ability to adjust the magnetic field is limited. Therefore, some experts and scholars have studied the electric excitation flux switching motor; although the magnetic field...

AI Technical Summary

Problems solved by technology

However, there is coupling between the two magnetic fluxes generated by the two magnetic potential sources of the hybrid excitation flux switching motor, which are easy to influence each other, increase the excitation loss, and reduce the efficiency of the motor

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