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High-temperature superconductive rotating magnetic filed electric maglev system

A rotating magnetic field and high-temperature superconducting technology, applied in the electromagnetic field, can solve the problems of mechanical vibration and mechanical noise with complex structure, and achieve the effect of convenient and effective suspension force control and avoid mechanical loss.

Inactive Publication Date: 2012-06-27
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the disadvantages of the existing electric magnetic levitation system mentioned in the above background technology, such as complex structure, mechanical vibration and mechanical noise, etc., the present invention proposes a high temperature superconducting rotating magnetic field electric magnetic levitation system

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  • High-temperature superconductive rotating magnetic filed electric maglev system
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  • High-temperature superconductive rotating magnetic filed electric maglev system

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Embodiment Construction

[0021] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0022] The object of the present invention is to provide a superconducting magnetic levitation system - a high temperature superconducting rotating magnetic field electric magnetic levitation system, which can realize static inherently stable electric magnetic levitation without any mechanical movement. Passing an alternating current in the primary winding will cause the figure 1 A rotating and changing magnetic field is generated in the suspended air gap shown. This magnetic field will induce an eddy current magnetic field in the secondary conductor plate. The air gap magnetic field and the eddy current magnetic field interact to generate a repulsive force between the primary and secondary as the suspension of the sys...

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Abstract

The invention discloses a high-temperature superconductive rotating magnetic filed electric maglev system in the field of electromagnetic techniques. The system comprises a primary iron core, a primary winding, a Dewar flask and a secondary aluminum conductor plate, wherein the primary winding is installed in the groove of the primary iron core; the primary iron core is arranged at the bottom of the Dewar flask; the secondary aluminum conductor plate is arranged below the Dewar flask and the area of the secondary aluminum conductor plate is larger than the area of the primary iron core; three-phase alternating current or multiphase alternating current is switched into the primary winding; and the Dewar flask is filled with liquid nitrogen and is made of a nonmagnetic insulating material. The high-temperature superconductive rotating magnetic filed electric maglev system has the advantages that the energy loss is small, the structure is stable, the system is simple to control, mechanical vibration, noise and a gyroscope effect do not exist because a mechanical rotating mechanism is not used, the system is suitable for large-air-gap levitation places and intrinsically and statically stable maglev can be realized.

Description

technical field [0001] The invention belongs to the field of electromagnetic technology, in particular to a high-temperature superconducting rotating magnetic field electric magnetic levitation system. Background technique [0002] According to Lenz's theorem, both the moving magnetic field and the changing magnetic field can induce a current in the conductor, and the direction of the magnetic field generated by the induced current is opposite to the polarity of the source moving magnetic field, and the interaction force between the two magnetic fields is expressed as a repulsive force. According to this principle, scholars from various countries have proposed a variety of schemes to realize magnetic levitation by using the repulsion generated by the eddy current electromagnetic field in the conductor, which is called electric magnetic levitation. [0003] One of the more representative ones is the Japanese MLU superconducting maglev transportation system. The vehicle-mounte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N15/00
Inventor 范瑜朱熙秦伟李硕
Owner BEIJING JIAOTONG UNIV
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