Transverse flux permanent magnet motor topology

Abstract

The invention relates to a permanent magnet motor topology, in particular to a transverse flux permanent magnet machine topology. The transverse flux permanent magnet motor topology comprises at least two layers of stator iron cores and rotor PM magnet poles arranged in the stator iron cores; rotors are skewed poles; the circumference of the rotors are formed by a plurality of stator-rotor magnetic poles; an outer stator inner core and an inner stator external core share a transition iron core; and the external and the inner magnetic circuits are connected in series. Therefore, the transverse flux permanent magnet motor topology provided by the invention has the advantages that problems of core saturation and narrow inner circle mounting space caused by over difference between the inner diameter and the external diameter in a single layer structure are solved, fully utilizes the inner space of the motor, is particularly applicable to a motor with large diameter for improving torque density, solves the problem that the electromagnetic performance is poor since the conventional stator skewed pole C-shaped structure is difficult to adopt a laminating structure, and improves the motor efficiency.

Description

technical field [0001] The invention relates to a topology of a permanent magnet motor, in particular to a topology of a transverse flux permanent magnet motor. Background technique [0002] Transverse flux permanent magnet motors have the characteristics of high torque density and have broad application prospects in the fields of low-speed propulsion and power generation. Among the many topologies of transverse flux permanent magnet motors at present, the C-shaped structure of the stator with inclined poles proposed by the British has the advantages of relatively simple structure and high torque density, and a 3MW prototype was manufactured and a 20MW prototype was designed using this structure Program. [0003] The current C-shaped stator structure has two disadvantages: one is that the two ends of the stator core must be skewed by one pole pitch, and it is difficult to manufacture the iron core poles of this shape by laminating silicon steel sheets. Generally, soft iron ...

AI Technical Summary

Problems solved by technology

A solution is proposed to solve the problem that the original stator with inclined C-shaped structure is difficult to adopt lamination structure, resulting in the difficulty of achieving both high magnetic permeability and low iron loss, and poor electromagnetic effect.

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