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A superconducting eddy current braking device with a linear halbach permanent magnet arrangement containing a superconducting switch

A technology of eddy current braking and superconducting switches, which is applied in electric braking systems, electric vehicles, transportation and packaging, etc., can solve the problems of reducing the suspension carrying capacity of suspension vehicles, increasing conductors, and unfavorable suspension stability

Inactive Publication Date: 2015-08-19
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of permanent magnet preparation, continuing to increase the magnetic field strength of the permanent magnet has reached a bottleneck that is difficult to break through, and increasing the number of conductors will inevitably reduce the suspension carrying capacity of the suspension vehicle body, which will bring unfavorable factors to the suspension stability of the system

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  • A superconducting eddy current braking device with a linear halbach permanent magnet arrangement containing a superconducting switch
  • A superconducting eddy current braking device with a linear halbach permanent magnet arrangement containing a superconducting switch
  • A superconducting eddy current braking device with a linear halbach permanent magnet arrangement containing a superconducting switch

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with drawings and embodiments.

[0016] refer to Figure 2-6 , taking the high-temperature superconducting maglev vehicle body as an example, the superconducting eddy current braking device arranged with linear Halbach permanent magnets containing superconducting switches is used to complete the non-contact electromagnetic braking of the suspended vehicle body. The linear Halbach combined magnet 200 and placed The eddy current carrier 400 for suspension vehicle body braking is composed of: the side wall of the linear Halbach combined magnetic rail adopts two linear Halbach combined magnets 200 to be vertically installed on the side of the permanent magnet guide rail 300 for suspension along the longitudinal extension direction of the route; the eddy current coil of the eddy current carrier 400 410 uses superconducting materials to form superconducting coils, and the eddy current coils share a low-tempe...

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Abstract

The invention discloses a linear Halbach permanent magnet-arranged superconductive eddy-current brake device with a superconductive switch, which is used for the non-contact electromagnetic braking of levitated bodies and comprises linear Halbach combination magnets and a superconductive eddy-current brake, and the superconductive eddy-current brake is arranged on a levitated body for braking. The two linear Halbach combination magnets adopted as the sidewalls of a linear Halbach combination magnet track are vertically mounted over the sides of permanent magnet guide rails for levitation along the longitudinal extension direction of a line; and eddy-current coils of the superconductive eddy-current brake adopt superconductive material to form superconductive coils. The linear Halbach permanent magnet-arranged superconductive eddy-current brake device can obtain higher air gap flux than the conventional arrangement method within an available space, and meanwhile, a good magnetic shielding effect can effectively reduce the affection of a magnetic field on a magnetic levitation system. Moreover, the linear Halbach permanent magnet-arranged superconductive eddy-current brake device has the advantages of high eddy-current braking electromagnetic force and controllability.

Description

technical field [0001] The invention relates to a high-temperature superconducting magnetic levitation vehicle, in particular to the technical field of a vehicle superconducting eddy current braking device. Background technique [0002] HTS maglev systems utilize long stator linear induction motors to provide contactless drive. Although the braking effect can be achieved by changing the current direction in the three-phase long stator windings, only one braking method cannot effectively guarantee the reliability of the suspended vehicle body braking in high-speed operation or emergency braking. The traditional braking method relying on contact friction is not suitable for the high-temperature superconducting magnetic levitation car body in the free suspension state, let alone the levitation car body in the high-speed running state. In order to ensure the stable and safe operation of the levitation car body, it must be equipped with Effective braking device with high braking...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/28
Inventor 李婧
Owner SOUTHWEST JIAOTONG UNIV
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