High-temperature superconducting magnetic levitation propulsion system

Abstract

The invention discloses a high-temperature superconducting magnetic levitation propulsion system, the system comprises a vehicle body and a track, a vehicle-mounted levitation magnet is arranged at the bottom of the vehicle body, the vehicle-mounted levitation magnet is fixedly connected with the vehicle body, the vehicle-mounted levitation magnet comprises high-temperature superconducting strips,and the multiple high-temperature superconducting strips are arranged in a stacked mode; the rail is fixedly arranged on the ground, and a permanent magnet rail is arranged on the rail, corresponds to the vehicle-mounted suspension magnet and is used for achieving suspension and guiding of the vehicle body. The high-temperature superconducting magnetic levitation propulsion system is simple in structure, the structure is ingenious, the suspension magnet is not a traditional high-temperature superconducting block but a high-temperature superconducting strip. The high-temperature superconducting strips are more uniform in trapped magnetic flux, train operation vibration is small, the fixing process of the stacked / woven high-temperature superconducting strips is simple, the high-temperaturesuperconducting strips can be stacked in different directions according to needs, great convenience is brought to design of the superconducting suspension magnet, and the specific requirements for suspension force and guide force are met.

Description

technical field [0001] The invention relates to a maglev propulsion system, in particular to a high-temperature superconducting maglev propulsion system. Background technique [0002] Rail vehicles are mainly divided into two categories: wheel-rail type and magnetic levitation type. Among them, the magnetic levitation type vehicle realizes zero contact between the vehicle body and the ground, greatly reduces frictional resistance, and is one of the development directions of a new generation of ultra-high-speed vehicles. [0003] The maglev train realizes non-contact suspension and guidance between the train and the track through electromagnetic force / permanent magnetic force, and uses the electromagnetic force generated by the linear motor to drive the train. It is a new type of non-contact ground rail vehicle. Maglev trains can be divided into three types: constant conduction maglev (EMS), permanent magnet / superconducting electrodynamic maglev (EDS) and superconducting pinn...

AI Technical Summary

Problems solved by technology

However, the low critical current density of the superconducting bulk material leads to a small trapping magnetic flux, which in turn leads to a small trapping magnetic field, a small levitation gap, and a small levitation drift.

After superconducting blocks are stacked, the blocks on the upper layer have a weak ability to capture magnetic flux, and have little effect on lifting the levitation force. Generally, tiles are used. Although a variety of blocks or rails are used to optimize the combination, but in the levitation and The effect of improving the guiding force is not obvious, which limits the application of blocks in the field of heavy load and high stability magnetic suspension

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