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Permanent magnetic and electromagnetic composite excitation long-stator linear synchronous motor

An electromagnetic hybrid and linear synchronous technology, applied in the field of electric motors, achieves the effect of large suspension force, lightening the weight of the train and increasing the height of the suspension air gap

Inactive Publication Date: 2003-12-10
TONGJI UNIV
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  • Summary
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  • Description
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Problems solved by technology

[0003] The present invention is to provide a long stator linear synchronous motor with permanent magnet and electromagnetic hybrid excitation, which solves the problem of increasing the excitation magnetic potential under the condition that the existing excitation current density and the size of the electromagnetic pole are limited, thereby increasing the height of the suspension air gap question

Method used

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  • Permanent magnetic and electromagnetic composite excitation long-stator linear synchronous motor
  • Permanent magnetic and electromagnetic composite excitation long-stator linear synchronous motor
  • Permanent magnetic and electromagnetic composite excitation long-stator linear synchronous motor

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Embodiment Construction

[0016] see figure 1 As shown, the present invention includes a long stator core 2 , an armature winding 1 , a salient magnetic pole 3 and a DC generator 5 . The long stator core 2 is laid along the guide rail line, and several tooth grooves 21 are arranged on it along the length direction. The armature winding 1 is embedded in the slot 21 . Both the salient pole magnetic pole 3 and the direct current generator 5 are arranged on the train. The salient pole pole 3 has an excitation winding 31, a pole core 32 and a yoke 33; the excitation winding 31 surrounds each pole core 32, one end of two adjacent pole cores 32 is connected by a yoke 33, and the pole core 32 is The magnetic shoe portion at one end faces the long stator core 2 . A permanent magnet 4 made of permanent magnetic alloy material is embedded on each pole core 32 . The magnetization direction M of this permanent magnet 4 is consistent with the magnetic pole direction of this magnetic pole core 32, and its height ...

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Abstract

The permanent-magnetic and electromagnetic compositely excited long-stator linear synchronous motor includes salient pole magnetic pole with excitation winding and magnetic pole iron core and D.C. power generator which are mounted in the train and long-stator iron core and armature winding which are laid along the trackway circuit. The magnetic pole iron core of said salient pole magnetic pole is equipped with embedded permanent magnet, and its magnetization direction is identical to the direction of electric field pole.

Description

Technical field: [0001] The invention relates to electric motors, in particular to a long-stator linear synchronous motor for driving magnetic levitation trains. Background technique: [0002] The maglev train is a new type of rail transportation. Although its mechanism of action was proposed in the early part of the last century, it is still in the near future when it is actually put into practical use due to technical constraints. Usually, the maglev train adopts a long stator linear synchronous motor to provide driving power on the one hand, and to provide magnetic levitation force on the other hand, so that the train is out of contact with the track and suspended on it. Therefore, compared with the traditional rail transit, the friction and vibration between the wheels and the track are reduced, and the speed of the vehicle can be greatly increased, up to 500 km / h, stable and noiseless. The long stator linear synchronous motor is a salient pole synchronous motor, such a...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K41/03
Inventor 杜玉梅吴祥明金能强徐善纲黄靖宇
Owner TONGJI UNIV
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