Integrated suspension electromagnet, linear motor and maglev train

Abstract

The invention discloses a superconducting and normal-conducting integrated suspension electromagnet, a linear motor and a maglev train. The integrated suspension electromagnet comprises a plurality of normal-conducting magnets and a plurality of superconducting magnets, and the polarities of the constructed magnetic poles are sequentially arranged in a staggered mode; the constant magnetizer forms a corresponding constant magnetic field loop, the superconducting magnet comprises a plurality of groups of superconducting coils, superconducting iron cores and a superconducting magnet yoke, the superconducting coils and the superconducting iron cores are arranged in sequence, the top end of each superconducting iron core is provided with a spacer block made of a non-metal non-magnetic material, and each superconducting iron core is connected with the superconducting magnet yoke to form a corresponding superconducting magnetic field loop; a transition magnet yoke is arranged between the adjacent normally-conductive magnet and superconducting magnet, and the adjacent normally-conductive magnet yoke and superconducting magnet yoke are connected through the transition magnet yoke to form an adjacent magnetic field loop. According to the scheme, the influence of working heating of the electromagnet on the insulation performance and the service life of the magnetic pole can be reduced through structural optimization, and meanwhile good active control performance is considered on the basis of generating large electromagnetic force.

Description

technical field [0001] The invention relates to the technical field of maglev trains, in particular to a superconducting and normal conducting integrated levitation electromagnet, a linear motor and a maglev train. Background technique [0002] For maglev trains, ultra-high-speed operation requires maglev trains to have higher suspension capabilities. Taking the domestic high-speed maglev train as an example, its maximum operating speed reaches 503km / h. At present, the design speed of high-speed maglev train is 600km / h, and the constant-conduction levitation electromagnet can meet the operation requirements. [0003] As we all know, ultra-high-speed, large-carrying-capacity transportation means is also a development direction of future rail transit. With the further increase of speed, the vertical dynamic load of vehicles will intensify, which puts forward higher requirements for carrying capacity. The levitation electromagnet with constant conduction can increase the levit...

AI Technical Summary

Problems solved by technology

The levitation electromagnet with constant conduction can increase the levitation capacity by increasing the current. Increasing the current will cause serious heating and there is a risk of burning out. Therefore, it is impossible to increase the carrying capacity by further increasing the operating current.

[0004] In view of this, it is urgent to improve and optimize the suspension system of the existing maglev trains, so as to overcome the problem that the existing constant conduction suspension electromagnets work heat and affect the carrying capacity.

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