Dual winding axial field flux switching fault tolerant motor

Abstract

The invention discloses a double-winding axial magnetic flux switching fault-tolerant motor, which belongs to the field of permanent magnet motors. The motor includes 2 salient pole stators and 1 salient pole rotor. The stator is composed of stator fixed disc, stator module, main winding and auxiliary winding; each stator module includes a 2U stator core with a magnetic bridge and a permanent magnet , the main winding and the auxiliary winding respectively form a three-phase winding, and each phase winding adopts a separate H-bridge topology for power supply. The setting of the isolation slot between the stator modules can not only improve the fault tolerance, but also provide space for placing the auxiliary winding together with the stator fixed disk. It provides an alternative when the main winding fails, with simple processing and assembly and flexible control. There is neither permanent magnet nor coil on the rotor, and the structure is simple, which improves the dynamic performance of the motor. The motor combines the advantages of the axial flux switching permanent magnet motor and the fault-tolerant motor, and improves the operating performance and reliability of the motor.

Description

technical field [0001] The invention relates to a double-winding axial magnetic flux switching fault-tolerant motor, which belongs to the technical field of permanent magnet motors. Background technique [0002] With the development of science and technology and social economy, the application fields of motors are becoming more and more extensive. The research and development of motors with small size, high reliability and strong fault tolerance is an important research direction in the fields of aviation, transportation, and medical treatment. In order to solve the fault-tolerant ability of the motor, Professor B.C.Mecrow of the United Kingdom first proposed the concept of a fault-tolerant permanent magnet (FTPM) motor. The FTPM motor with concentrated winding realizes the relative independence of the circuit, magnetic circuit and temperature between phases, which greatly improves the fault tolerance and reliability of the motor. However, the permanent magnet of this motor ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defect that the existing motor drive system may fail during operation and cause the motor to fail to operate normally, and to provide a double-winding axial field flux switching fault-tolerant motor, which improves the motor drive system. Fault tolerance, to ensure that the motor can still run normally when a fault occurs

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