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

A permanent magnet synchronous motor, hybrid winding technology, applied in synchronous motors with stationary armatures and rotating magnets, windings, electric components, etc., can solve the difficulty of fault isolation, high degree of electromagnetic coupling between phases, and modular design of motors Difficulty and other problems, to achieve the effect of low manufacturing and maintenance costs, high motor efficiency, and good magnetic isolation effect

Active Publication Date: 2018-01-30
严格集团股份有限公司
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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 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 single-phase permanent magnet synchronous motor. Modular multi-phase permanent magnet synchronous motor with double-layer hybrid winding

Method used

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  • Modular multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid windings
  • Modular multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid windings
  • Modular multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid 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 modular multiphase permanent magnet synchronous motor based on the single-layer hybrid winding described in this embodiment, it includes a stator 1 and a permanent magnet rotor 2, the stator 1 is arranged inside or outside the permanent magnet rotor 2, and A radial air gap of width L is left between the two;

[0019] The stator 1 is assembled from m identical stator modules, and the assembled stator 1 is disc-shaped; m is a positive integer;

[0020] Each stator module includes a stator core 3 and 2n concentrated windings 5; the stator core 3 is sequentially provided with a first fault-tolerant tooth 3-1, 2n armature teeth 3-2 and a second fault-tolerant tooth 3-3 in a clockwise direction. Surrounded by 2n+1 stator slots 4, 2n concentrated windings 5 ​​are set in 2n+1 stator slots 4, and the stator slots 4 are set facing the permanent magnet rotor 2; each arm...

specific Embodiment approach 2

[0027] Embodiment 2: This embodiment further describes Embodiment 1. The motor has m-phase windings, and all concentrated windings 5 ​​inside each stator module together form a phase winding.

[0028] And there is no magnetic coupling between 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] By adopting the multi-phase winding, the fault-tolerant operation performance of the modular multi-phase permanent magnet synchronous motor based on the single-layer and double-layer hybrid winding can be improved.

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Abstract

The modular multi-phase permanent magnet synchronous motor based on single-layer and double-layer hybrid windings belongs to the field of permanent magnet motors. The high degree of coupling leads to a difficult problem in the modular design of the motor. The invention includes a stator and a permanent magnet rotor, the stator is arranged inside or outside the permanent magnet rotor, and there is an air gap between the two; the stator is assembled from several identical stator modules, and is disc-shaped; each stator module Including the stator core and 2n concentrated windings; 2n concentrated windings are arranged in 2n+1 stator slots, and each armature tooth is wound with a concentrated winding; the concentrated windings wound on two adjacent armature teeth The number of turns is equal and the winding direction is opposite; the permanent magnet rotor is assembled from permanent magnets and rotor cores, and the permanent magnet rotor can be a surface-mounted structure, a Halbach structure or a tangential structure.

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. Multi-phase permanent magnet synchronous motor has good fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/12H02K21/14H02K1/16H02K1/27H02K3/46
Inventor 隋义郑萍程路明周承豫赵白鸽
Owner 严格集团股份有限公司
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