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Modular disc multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid winding

A permanent magnet synchronous motor and hybrid winding technology, which is applied to synchronous motors with stationary armatures and rotating magnets, electrical components, electromechanical devices, etc. High coupling degree and other problems, to achieve good magnetic isolation effect, low manufacturing and maintenance costs, and high motor efficiency

Active Publication Date: 2018-03-16
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 disc-type multi-phase permanent magnet synchronous motor, and the difficulty in modular design of the motor due to the high degree of electromagnetic coupling between phases, and provides a Modular disc multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid winding

Method used

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  • Modular disc multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid winding
  • Modular disc multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid winding
  • Modular disc multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid winding

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specific Embodiment approach 1

[0026] Specific implementation mode one: the following combination Figure 1 to Figure 5 , Figure 10 to Figure 12 Describe this embodiment, the modular disc type multi-phase permanent magnet synchronous motor based on single and double layer hybrid windings in this embodiment, it includes a main shaft 1, a bearing 2, a casing 3, one or two stators 4 and a disc permanent magnet synchronous motor. The magnetic rotor 7, the stator 4 and the disc permanent magnet rotor 7 are arranged inside the casing 3,

[0027] When the motor adopts a single stator structure, the stator 4 is arranged on one side of the disc permanent magnet rotor 7 along the axial direction;

[0028] When the motor adopts a double-stator structure, the two stators 4 are arranged on both sides of the disk-type permanent magnet rotor 7 along the axial direction;

[0029] There is an air gap of length L along the axial direction between the stator 4 and the disc permanent magnet rotor 7;

[0030] The stator 4 i...

specific Embodiment approach 2

[0037] Embodiment 2: This embodiment further describes Embodiment 1. The stator 4 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

[0038] 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.

[0039]By adopting the multi-phase winding, the fault-tolerant operation performance of the modular disc-type multi-phase permanent magnet synchronous motor based on the single-layer and double-layer hybrid winding can be improved.

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Abstract

A modular disc multi-phase permanent magnet synchronous motor based on a single-layer hybrid winding belongs to the field of permanent magnet motors. The present invention solves the difficulty in fault isolation of conventional disc multi-phase permanent magnet synchronous motors when faults such as winding short circuit occur. And the problem that the modular design of the motor is difficult due to the high degree of electromagnetic coupling between phases. The present invention includes a main shaft, a bearing, a casing, one or two stators, and a disk-type permanent magnet rotor. The stator and the disk-type permanent magnet rotor are arranged inside the casing, and the stator is assembled from m identical stator modules. Each The stator module includes 2n concentrated windings and a stator core. The stator core is provided with 2n+1 stator slots, and a concentrated winding is wound on each armature tooth; the number of turns of two adjacent concentrated windings is equal and their winding directions are opposite ; The disc permanent magnet rotor includes a disc rotor core and a plurality of permanent magnets, the permanent magnets are magnetized along the axial direction, and their magnetization directions are alternately opposite.

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] Since the 21st century, with the increasingly serious energy crisis and environmental pollution, energy conservation and environmental protection have gradually become the two major themes of today's automobile development, and new energy vehicles represented by electric vehicles have gained more and more attention. For electric vehicles, the safety and reliability of their electric drive systems are of paramount importance. At present, when the traditional three-phase permanent magnet synchronous motor has a winding open circuit or short circuit fault, the torque output of the motor will change drastically, and even fail to work, which may pose a serious threat to the safety of the vehicle itself and the occupants. threaten. The multi-phase permanent magnet synchronous motor has goo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/24H02K16/04H02K1/16H02K1/14
Inventor 刘勇隋义于斌梁光照刘家琦
Owner HARBIN INST OF TECH
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