A coil type permanent magnet electric levitation device for maglev train

An electric suspension and maglev train technology, applied in electric vehicles, vehicle components, electric traction, etc., can solve the problems of inapplicability to high-speed fields, low mechanical strength of thin-plate structures, unfavorable engineering, etc., and achieve good high-speed performance, simple structure, Weak skin effect

Active Publication Date: 2018-06-12
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the bilateral permanent magnet electric levitation method based on the thin plate structure proposed by Chen Yin of Southwest Jiaotong University can reduce the electromagnetic resistance at low speed, it is not suitable for high-speed fields due to the skin effect.
Moreover, the mechanical strength of the thin-plate structure is low, and it cannot bear the gravity of the train under normal circumstances, so it is not conducive to its engineering

Method used

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  • A coil type permanent magnet electric levitation device for maglev train
  • A coil type permanent magnet electric levitation device for maglev train
  • A coil type permanent magnet electric levitation device for maglev train

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] refer to figure 1 and figure 2 , a coil type permanent magnet electric levitation device for a maglev train of the present invention includes a train body 10, a track 12, and a linear motor 11 that drives the train body 10 to move along the track 12. A group of coils are fixedly installed on both sides of the track 12 , and each group of coils is composed of several zero-flux coils 20 arranged at intervals along the extending direction of the track 12 . The bilateral permanent magnet arrays corresponding to the coils are transversely spaced on the train body 10, and the bilateral permanent magnet arrays include an upper linear Halbach array 31 above the zero-flux coil 20 and a lower linear Halbach array below the zero-flux coil 20. In the Halbach array 32 , there is an upper air gap 33 between the zero flux coil 20 and the bottom surface of th...

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Abstract

The invention discloses a coil-type permanent-magnet electro-dynamic suspension device for a magnetic-levitation train; the device has the features that the self-stabilizing suspension of the train is realized in the absence of a control system, the suspension rigidity is higher, and the resistance and energy consumption are both lower. The device comprises a train body, a track and a linear motor, wherein the linear motor is used for driving the train body to move along the track. Each of two sides of the track is fixedly provided with a set of coils; each set of coils is composed of a plurality of zero-flux coils arranged along a track extension direction at intervals. Bilateral permanent-magnet arrays, corresponding to the coils, are transversely arranged on the train body at intervals; the bilateral permanent-magnet arrays comprise upper linear Halbach arrays positioned above the zero-flux coils and lower linear Halbach arrays positioned below the zero-flux coils; an upper air gap is formed between the zero-flux coils and the bottom surfaces of the upper linear Halbach arrays; a lower air gap is formed between the zero-flux coils and the top surfaces of the lower linear Halbach arrays.

Description

technical field [0001] The invention relates to the field of electromagnetic levitation, in particular to a coil type permanent magnet electric levitation device for maglev trains. Background technique [0002] Maglev train is a means of transportation that realizes non-contact movement through electromagnetic force. Since German engineer Kemper proposed the concept of maglev train in the 1920s, this new mode of transportation has become the main mode of future transportation due to its advantages of high speed and safety. one. After nearly a hundred years of development, maglev trains have gradually formed two main types: Electromagnetic Suspension (EMS) and Electric Repulsion Suspension (EDS). Among them, the electromagnetic suction suspension uses the suction force generated by the electromagnet and the magnetic material as the suspension force. At present, this method is the most common and mature. But suction is an unstable force, so this kind of maglev mode needs to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L13/10
CPCB60L13/10
Inventor 陈殷邓云川张昆仑刘国清张文龙
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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