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Axial exciting mixed reluctance motor

A technology of axial excitation and reluctance motor, which is applied in the direction of magnetic circuit shape/style/structure, electrical components, electromechanical devices, etc., and can solve problems such as inability to compensate and control the magnetic potential of permanent magnets, and the limitation of motor torque

Inactive Publication Date: 2005-06-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the existing permanent magnet motor, the present invention provides an axial excitation hybrid reluctance motor
The first problem solved by the present invention is that the size of the motor torque is limited by the size of the motor; the second problem solved by the present invention is that the existing permanent magnet motor cannot easily compensate and control the magnetic potential of the permanent magnet

Method used

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specific Embodiment approach 1

[0005] Specific embodiment one: Referring to Fig. 1, this embodiment consists of a rotor core 1, a stator core 2, a radial field winding 4, a permanent magnet 5, an axial field compensation control winding 7, a magnetic end cover 8, and a magnetic machine The shell 9 and the non-magnetic shaft 11 are composed. The magnetically permeable casing 9 covers the outside of the stator core 2 , the rotor core 1 is arranged inside the stator core 2 , and there is a radial air gap 3 between the rotor core 1 and the stator core 2 . A number of large poles are set on the stator core 2 according to the number of phases of the motor. There are several small teeth on the large poles of each phase iron core. number of phases), radial multi-phase excitation windings 4 are arranged on the pole body. The rotor core 1 is set on the non-magnetic shaft 11, the rotor core 1 is divided into the left rotor core 1-1 and the right rotor core 1-2 at the center of the axis, and the sheet-shaped permanent...

specific Embodiment approach 2

[0006] Specific embodiment 2: Referring to FIG. 2 , the difference between this embodiment and specific embodiment 1 is that a non-magnetic permeable body 12 is provided between the magnetic permeable housing 9 and the stator core 2 . In the magnetic system of the axial excitation hybrid reluctance motor of the present embodiment, the magnetic flux of the permanent magnet 5 passes through the left rotor iron core 1-1, the radial air gap 3, the stator iron core 2, the air gap 3 and the right rotation The sub-iron core 1-2 is closed. The magnetic flux of the axial excitation compensation control winding 7 passes through the axial excitation compensation control winding core 6, the axial air gap 10, the left rotor core 1-1, the radial air gap 3, the stator core 2, the radial air gap Gap 3, right rotor iron core 1-2, axial air gap 10, magnetically permeable end cover 8, magnetically permeable casing 9 and magnetically permeable end cover 8 are closed. The magnetic flux of the rad...

specific Embodiment approach 3

[0007] Specific implementation mode three: see image 3 The difference between this embodiment and the specific embodiment 1 is that an axial magnetic isolation block 13 and an axial iron core 14 are sequentially fixed on the outer sides of the left rotor core 1-1 and the right rotor core 1-2 respectively, There is a gap 10-1 between the axial iron core (14) and the axial excitation compensation control winding iron core 6. In the magnetic system of the axial excitation hybrid reluctance motor, the magnetic flux of the permanent magnet 5 is closed through the rotor core 1-1, the radial air gap 3, the stator core 2, the air gap 3 and the rotor core 1-2. The magnetic flux of the axial excitation compensation control winding 7 passes through the axial excitation compensation control winding core 6, the gap 10-1, the rotor core 14, the radial air gap 3, the stator core 2, the magnetic conduction casing 9 and the magnetic conduction The end cap 8 is closed. The magnetic flux of th...

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Abstract

An axial excitation hybrid reluctance motor relates to an axial excitation hybrid reluctance motor with the functions of controlling and compensating the axial permanent magnet magnetic potential. It includes stator core, radial excitation winding, rotor core and permanent magnet. In the present invention, the magnetization direction of the permanent magnet is coaxial with the rotor core, and an axial excitation compensation control winding core and an axial excitation compensation control winding Winding, two axial excitation compensation control winding iron cores are respectively arranged on both sides of the rotor core in the axial direction, there is an axial air gap between the axial excitation compensation control winding iron core and the rotor iron core, and the axial excitation compensation control winding Installed on the iron core of the axial excitation compensation control winding, the axial excitation compensation control winding generates a magnetic field in the same direction as the rotor axis. The invention obtains the compensation and controllability of the magnetic potential of the permanent magnet by rationally designing and constructing the magnetic system, and at the same time can effectively use the space of the motor, thereby obtaining large torque and good control characteristics under the premise of the same structural size .

Description

Technical field: [0001] The invention relates to an axial excitation hybrid reluctance motor with the functions of controlling and compensating the axial permanent magnet magnetic potential. Background technique: [0002] Beijing Institute of Technology Press published in November 2002, edited by Chen Qingquan and Sun Fengchun, the book "Modern Electric Vehicle Technology" with the serial number ISBN7-5640-0045-7 mentioned a permanent magnet hybrid drive motor, which consists of Composed of permanent magnets, claw rotors, fixed field windings and stators, the permanent magnets are embedded in the rotor, and the field windings are fixed in the ring-shaped fixed area between the inner rotor and the outer rotor. Although it has the advantages of compact structure, small flux leakage, small volume, high air gap flux density and high power density, it has the following problems. First, the size of the motor torque is limited by the size of the motor. Torque, the size of the moto...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K29/00
Inventor 程树康张千帆宋立伟崔淑梅裴玉龙程远
Owner HARBIN INST OF TECH
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