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Modularization flat plate type multiphase permanent magnet linear motor based on single and double layer compound windings

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

Inactive Publication Date: 2015-07-15
HARBIN INST OF TECH
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  • Summary
  • 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 planar multi-phase permanent magnet linear motor with double-layer hybrid winding

Method used

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  • Modularization flat plate type multiphase permanent magnet linear motor based on single and double layer compound windings
  • Modularization flat plate type multiphase permanent magnet linear motor based on single and double layer compound windings
  • Modularization flat plate type multiphase permanent magnet linear motor based on single and double layer compound windings

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specific Embodiment approach 1

[0018] Specific implementation mode one: the following combination Figure 1 to Figure 3 Describe this embodiment, the modularized plate-type multi-phase permanent magnet linear motor based on the single-layer hybrid winding described in this embodiment, it includes k stators 1 and permanent magnet movers 2, k=1 or 2, k=1 , the stator 1 is arranged on one side of the permanent magnet mover 2; when k=2, two stators 1 are symmetrically arranged on both sides of the permanent magnet mover 2;

[0019] There is an air gap of length L between the stator 1 and the permanent magnet mover 2;

[0020] The stator 1 is assembled from m identical stator modules, and the assembled stator 1 is a flat plate structure extending axially; m is a positive integer;

[0021] Each stator module includes a stator core 3 and 2n 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...

specific Embodiment approach 2

[0028] Embodiment 2: In this embodiment, Embodiment 1 is further described. The stator 1 has m-phase windings, and all concentrated windings 5 ​​inside each stator module together form a phase winding. There is no magnetic coupling between the different stator modules.

specific Embodiment approach 3

[0029] Embodiment 3: This embodiment further explains Embodiment 1, m≥3, and the concentrated winding 5 is a concentrated winding of three phases or more. The number of winding phases is determined by the number of stator modules.

[0030] The use of multi-phase windings can improve the fault-tolerant operation performance of the modular flat multi-phase permanent magnet linear motor based on single-layer and double-layer hybrid windings.

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Abstract

The invention relates to a modularization flat plate type multiphase permanent magnet linear motor based on single and double layer compound windings, and belongs to the field of permanent magnet motors. The modularization flat plate type multiphase permanent magnet linear motor aims at solving the problems that when faults like a winding short circuit occur in a conventional multiphase permanent magnet linear motor, the fault isolation difficulty is large; as the interphase electromagnetic coupling degree is high, the motor modularization design difficulty is large. The modularization flat plate type multiphase permanent magnet linear motor comprises stators and a permanent magnet rotor, the stators are arranged on one side or two sides of the permanent magnet rotor, and a gap is reserved between the stators and the permanent magnet rotor; each stator is formed by assembling a plurality of same stator modules which are assembled into a flat plate shape in the axial direction; each stator module comprises a stator core, 2n armature teeth, two fault-tolerant teeth and 2n concentrated windings; the permanent magnet rotor is formed by assembling a permanent magnet and a rotor core, and can be of a pasting structure or an Halbach structure or a tangential structure and the like.

Description

technical field [0001] The invention relates to a modular multiphase permanent magnet fault-tolerant motor, which belongs to the field of permanent magnet motors. Background technique [0002] Urban rail transit technology mainly has two technical modes, one is to use a rotating motor plus a gearbox to drive the wheels, and the friction between the wheels and rails to drive the vehicle forward; the other is to use a linear motor drive system. Compared with the traditional rotary motor traction technology, the rail transit system based on the linear motor has better climbing ability, no reduction gear and other devices are needed, the design freedom of the bogie and the line is large, and the excavation section of the tunnel is small, which is especially suitable for alignment Cities with difficult site and station selection, complex hydrogeological conditions, and dense buildings along the route. Safety and reliability are of paramount importance for linear motor drive syst...

Claims

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Application Information

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IPC IPC(8): H02K41/02H02K16/00
Inventor 隋义郑萍王伟男范雨卉周承豫
Owner HARBIN INST OF TECH
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