Fault-tolerant type stator segmentation flux switching memory motor

Abstract

The invention discloses a fault- tolerant type stator segmentation flux switching memory motor which comprises a stator (1), a rotor (2) and a non-magnetic rotary shaft (8). The stator (1) is arranged outside the rotor (2), the rotor (2) is fixed to the non-magnetic rotary shaft (8) and is of a salient pole type, and the stator (1) comprises a stator iron core (1.2) with an opening at one end, a permanent magnet (3), a three-phase armature winding (4), a pulse winding (5) and a stator yoke (1.1). The stator iron core (1.2) comprises a bottom edge, a first magnetic iron core edge (1.21) and a second magnetic iron core edge (1.22), wherein the first magnetic iron core edge (1.21) and the second magnetic iron core edge (1.22) extend vertically from the bottom edge, the permanent magnet (3) is arranged between the bottom edge of the stator yoke (1.1) and the bottom edge of the stator iron core (1.2), and the stator iron core (1.2) further comprises a fault-tolerant gear (1.2.3) vertically extending from the bottom edge and arranged between the two magnetic iron core edges. The fault-tolerant type stator segmentation flux switching memory motor has a strong ability of operating with faults and a weak magnetic speed extension ability.

Description

technical field [0001] The invention relates to an adjustable flux permanent magnet fault-tolerant motor, in particular to a new type of three-phase flux switching permanent magnet memory motor, which can improve the motor's ability to operate with faults and weaken the magnetic field, and is suitable for wide speed regulation operation The invention belongs to the technical field of motor manufacturing. Background technique [0002] In the field of motors, due to the inherent characteristics of ordinary permanent magnet materials (such as NdFeB), the air gap magnetic field in the motor is basically kept constant, and the speed regulation range is very limited when operating as an electric motor. The application of wide-speed adjustable direct drive applications such as electric vehicles and aerospace is limited to a certain extent. Therefore, the adjustable flux permanent magnet motor aimed at realizing the effective adjustment of the air gap magnetic field of the permanent...

AI Technical Summary

Problems solved by technology

However, this kind of motor has two magnetic potential sources at the same time, and the magnetic fluxes of the two are easy to couple and influence each other, which increases the complexity of electromagnetic characteristics, and has weaknesses such as increased excitation loss and difficulty in implementing the excitation current control system.

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