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Modular cylindrical multi-phase permanent magnet linear motor based on single-layer and double-layer hybrid windings

A permanent magnet linear motor and hybrid winding technology, applied in electromechanical devices, electrical components, electric components, etc., can solve the problems of difficult modular design of motors, difficult fault isolation, high degree of electromagnetic coupling between phases, and achieve good magnetic isolation. Effect, low cost of manufacturing and maintenance, high power density effect

Active Publication Date: 2018-11-02
成都川哈工机器人及智能装备产业技术研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of difficulty in fault isolation when a fault such as winding short circuit occurs in a conventional multiphase permanent magnet linear motor, and the difficulty in modular design of the motor due to the high degree of electromagnetic coupling between phases, and provides a single-phase permanent magnet linear motor based on Modular cylindrical multi-phase permanent magnet linear motor with double-layer hybrid winding

Method used

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  • Modular cylindrical multi-phase permanent magnet linear motor based on single-layer and double-layer hybrid windings
  • Modular cylindrical multi-phase permanent magnet linear motor based on single-layer and double-layer hybrid windings
  • Modular cylindrical multi-phase permanent magnet linear motor based on single-layer and double-layer hybrid windings

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specific Embodiment approach 1

[0016] Specific embodiment one: the following combination figure 1 and figure 2 This embodiment is described. The modular cylindrical multi-phase permanent magnet linear motor based on single-layer and double-layer hybrid windings described in this embodiment includes a stator 1 and a permanent magnet mover 2 , and the stator 1 is arranged on the side of the permanent magnet mover 2 . Internal or external, and there is a radial air gap of width L between them;

[0017] The stator 1 is assembled from m identical stator modules, and the assembled stator 1 is a cylindrical structure arranged along the axial direction; m is a positive integer;

[0018] Each stator module includes a stator core 3 and 4n annular concentrated windings 5; the stator core 3 is provided with two fault-tolerant teeth 3-1 and 2n armature teeth 3-2, the length of the armature teeth 3-2 in the axial direction greater than the length of the fault-tolerant tooth 3-1 along the axial direction; n is a positi...

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment further describes Embodiment 1. The stator 1 has m-phase windings, and all the annular concentrated windings 5 ​​inside each stator module together form a single-phase winding. There is no magnetic coupling between the different stator modules.

specific Embodiment approach 3

[0025] Embodiment 3: This embodiment further describes Embodiment 1, where m≧3, and the annular concentrated winding 5 is a three-phase or more than three-phase concentrated winding. The number of phases of the winding is determined by the number of stator modules.

[0026] By using multi-phase windings, the fault-tolerant operation performance of the modular cylindrical multi-phase permanent magnet linear motor based on single-layer and double-layer hybrid windings can be improved.

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Abstract

The invention relates to a modularization cylindrical multi-phase permanent magnet linear motor based on single-layer and double-layer mixed windings and belongs to the field of permanent magnet motors. The modularization cylindrical multi-phase permanent magnet linear motor aims at solving the problems that when faults such as winding short circuits occur in a conventional multi-phase permanent magnet linear motor, the fault isolation difficulty is high, and the motor modularization design difficulty is high due to the high interphase electromagnetic coupling degree. The modularization cylindrical multi-phase permanent magnet linear motor comprises a stator and a permanent magnet rotor, wherein the stator can be arranged inside or outside the permanent magnet rotor, and an air gap exists between the stator and the permanent magnet rotor. The stator is formed by splicing m identical stator modules which are spliced into a cylinder in the axial direction. Each stator module comprises a stator iron core, 2n armature teeth, two fault tolerant teeth and 4n annular concentrated windings. The permanent magnet rotor is formed by splicing permanent magnets and a stator iron core, and the permanent magnet rotor can be of a surface attaching structure or a Halbach structure or an axial magnetizing structure or the like.

Description

technical field [0001] The invention relates to a modular multi-phase permanent magnet fault-tolerant motor, which belongs to the field of permanent magnet motors. Background technique [0002] Since the 21st century, with the increasingly serious energy crisis and environmental pollution problems, energy saving and environmental protection have gradually become the two major themes of today's automobile development, and new energy vehicles represented by hybrid vehicles have gained more and more attention. According to the structure of the drive system, HEVs can be divided into three types: series, parallel and hybrid. In a series hybrid vehicle, the free-piston engine is combined with a linear motor to form a free-piston linear power generation system, which replaces the traditional piston-type internal combustion engine based on the crankshaft connecting rod mechanism. The intermediate mechanical transmission mechanism is reduced, making the entire electric drive system ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/02
Inventor 郑萍隋义宋志翌靳增峰刘家琦
Owner 成都川哈工机器人及智能装备产业技术研究院有限公司
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