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A Highly Fault Tolerant Modular Winding Design Method for Permanent Magnet Assisted Synchronous Reluctance Motor

A technology for assisting synchronous and reluctance motors, applied to the shape/style/structure of electric components, winding conductors, magnetic circuits, etc. The effect of magnetic coupling

Active Publication Date: 2019-12-03
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the distributed winding PMa-SynR motor itself does not have fault-tolerant performance, and propose a highly fault-tolerant PMa-SynR motor modular winding design method, which can effectively improve the fault-tolerant performance of the PMa-SynR motor

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  • A Highly Fault Tolerant Modular Winding Design Method for Permanent Magnet Assisted Synchronous Reluctance Motor
  • A Highly Fault Tolerant Modular Winding Design Method for Permanent Magnet Assisted Synchronous Reluctance Motor
  • A Highly Fault Tolerant Modular Winding Design Method for Permanent Magnet Assisted Synchronous Reluctance Motor

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Embodiment Construction

[0032] Referring to the accompanying drawings, a detailed description will be given to a highly fault-tolerant PMa-SynR motor modular winding design method proposed by the present invention. figure 1 It is an embodiment of PMa-SynR of the present invention. Such as figure 1 As shown, the PMa-SynR motor includes a modular stator 1 , a rotor 2 , an armature winding 3 , a non-magnetic body 4 , a magnetic barrier 5 and a permanent magnet 6 . The PMa-SynR motor stator in the embodiment of the present invention is composed of 3 modules, and each module is connected by 3-phase distributed windings. Such as figure 2 As shown, the windings in the module adopt a left-right relative distribution form, which can realize the independence of the modular windings, and is conducive to improving the fault-tolerant performance of the motor. The PMa-SynR motor rotor in the embodiment of the present invention has a 2-layer U-shaped magnetic barrier structure.

[0033] When designing the abov...

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Abstract

The invention discloses a modular winding design method of a permanent magnet auxiliary synchronous reluctance motor with high fault tolerance, which belongs to the field of permanent magnet auxiliarysynchronous reluctance motors. For the modular design of a stator of a PMa-SynR motor, the inlet and outlet of each phase of winding coil are changed on the basis of phase separation of a slot potential star map. Each module unit has a set of separate windings, and the windings of each module are oppositely distributed left and right. The method provided by the invention has the advantages that real modularization in structure is realized; independence between modules is high; overlapping of magnetic lines between modules is effectively avoided; the fault tolerance performance and reliabilityof the motor are improved; the shortcoming of low fault tolerance performance of a motor in a distributed winding structure can be solved; and the method has an important significance and practical value.

Description

technical field [0001] The invention relates to a method for improving the fault-tolerant performance of a permanent magnet assisted synchronous reluctance motor by using a modular winding design, and belongs to the field of permanent magnet assisted synchronous reluctance motors. Background technique [0002] The traditional interior permanent magnet (IPMS) motor with distributed winding structure has become the focus of research in the field of electric vehicle drive motors because of its high efficiency, high power density and many other advantages. However, rare earth materials such as NdFeB are expensive, which will greatly increase the cost of the motor, and it is easy to cause demagnetization in a high temperature environment, resulting in the failure of the motor drive system to operate normally, which will limit the application of IPMS motors in the field of electric vehicles to a certain extent. Permanent magnet assisted synchronous reluctance motor (PMa-SynR) is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/28H02K1/12H02K1/27
CPCH02K1/12H02K1/276H02K3/28H02K2213/03
Inventor 刘国海徐媚媚赵文祥吉敬华陈前凌志健
Owner JIANGSU UNIV
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