Driving system based on high-temperature superconducting magnetic levitation demonstration model

Abstract

The invention discloses a driving system based on a high-temperature superconducting magnetic levitation demonstration model. The system comprises a model trolley, a permanent magnet track, a displacement sensor, a single-chip microcomputer, a power supply and a driving coil. The model trolley is placed on the permanent magnet track. The model trolley comprises a shell and a heat preservation inner shell. Vehicle-mounted permanent magnets are arranged at the four corners in the shell. A liquid nitrogen filling port and a liquid nitrogen outlet are formed in the shell. The liquid nitrogen filling port and the liquid nitrogen outlet are communicated with the heat preservation inner shell. A high-temperature superconducting block is arranged at the bottom of the heat preservation inner shell.The displacement sensor is arranged in the middle of the upper end of the driving coil. The bottom face of the driving coil is fixed to the permanent magnet rail. The power source is electrically connected with the displacement sensor, the single-chip microcomputer and the driving coil. The displacement sensor is used for detecting passing or leaving of the model trolley, the single-chip microcomputer is used for controlling the driving coil to be powered on / off, and the displacement sensor is connected with the single-chip microcomputer. The system has the advantages of high curve passing performance, low cost, good acceleration and deceleration stability and the like.

Description

technical field [0001] The invention belongs to the field of electromagnetic technology, and in particular relates to a driving system based on a high-temperature superconducting magnetic levitation demonstration model. Background technique [0002] Maglev technology originated in Germany. As early as 1922, German engineer Hermann Kemper proposed the principle of electromagnetic levitation, and applied for a patent for maglev trains in 1934. After 1970, with the continuous strengthening of the economic strength of the world's industrialized countries, in order to improve the transportation capacity to meet the needs of their economic development, developed countries such as Germany, Japan, the United States, Canada, France, and the United Kingdom have successively begun to plan for the development of maglev transportation systems. develop. In 1922, the principle of electromagnetic levitation proposed by Hermann Kemper in Germany made it possible that in the past 30 to 40 ye...

AI Technical Summary

Problems solved by technology

[0005] The driving force of the existing linear motor drive technology is relatively small, and the shaking of the model car body during the driving process affects the display effect of the model. Although the drive control of linear motors is mature, it is generally used for large-scale equipment, and the drive control system is complex. , and very expensive

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