Polyphase fault-tolerant axial magnetic field motor

Abstract

The invention discloses a polyphase fault-tolerant axial magnetic field motor comprising a first permanent magnet (2), a first rotor (1) and a second permanent magnet (4) and a second rotor (5) whichare sequentially mounted and fixed on the two sides of a stator (3). The stator (3) is wound with two sets of windings with exactly the same parameters and winding direction, and the two sets of windings are connected in parallel to a power supply. The three-phase motor is changed into the multi-phase motor so that the requirement for the inverter current can be reduced. In addition, double windings are used and the power supply is cut off in time after the failure of the first set of windings and the use of the second set of windings is not affect so that the fault-tolerant ability is high and the motor can be applied to the occasion requiring high reliability requirement.

Description

technical field [0001] The invention relates to an axial magnetic field motor, in particular to a multi-phase fault-tolerant axial magnetic field motor. Background technique [0002] As a new trend of future automobile development, electric vehicles, on the one hand, can reduce the harm to the environment caused by the traditional automobile industry, and on the other hand, can solve the hidden dangers caused by the oil crisis, and have received widespread attention and attention. At present, under the premise that the vehicle battery technology has not made breakthroughs, the electric drive system of electric vehicles has become the key to the development of high-performance electric vehicles. Axial field motors have the advantages of compact structure and high torque density. However, axial field motors usually require high torque when running at low speed. Due to the limitation of installation size, the volume of the motor cannot be too large, which requires a large input...

AI Technical Summary

Problems solved by technology

Axial field motors have the advantages of compact structure and high torque density. However, axial field motors usually require high torque when running at low speed. Due to the limitation of installation size, the volume of the motor cannot be too large, which requires a large input current. The current capacity requirement of the transformer is relatively high, which increases the control cost

In addition, axial magnetic field motors have poor fault tolerance and are not suitable for applications that require high reliability.

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