Linear Halbach permanent magnet-arranged superconductive eddy-current brake device with superconductive switch

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...

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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