Superconducting magnet operation monitoring system and design method

Abstract

The invention discloses a superconducting magnet operation monitoring system and a design method, and belongs to the technical field of safety monitoring, the system comprises a superconducting magnet placed in a Dewar, the superconducting magnet is connected with a subsystem, a vacuum Dewar is connected with a molecular pump unit through a corrugated pipe, the corrugated pipe is provided with an electromagnetic valve, and the electromagnetic valve is connected with the subsystem. The subsystems, the power supply, the electromagnetic valve and the molecular pump unit are all connected with the monitoring host; system software runs in the monitoring host, and a bottom layer of a software system architecture comprises a subsystem, a power supply, an electromagnetic valve, a Dewar and an equipment control module obtained by mapping a molecular pump unit on a software level. By integrating the equipment control modules corresponding to the functional modules into the software framework, when the actually running physical equipment is changed, the new equipment can be integrated into the system only by simply modifying the bottom equipment control module, so that the generalization of the monitoring system is realized.

Description

technical field [0001] The invention relates to the technical field of superconducting magnet safety operation monitoring, in particular to a superconducting magnet operation monitoring system and a design method. Background technique [0002] Superconducting magnets are widely used in scientific research, medical treatment and even national defense due to their small size, high current density and zero resistance. There are various forms of superconducting magnets, including large-scale superconducting magnets cooled by liquid helium forced-flow, NMR superconducting magnets operating in a closed loop, small and medium-sized dry magnets refrigerated by refrigerators, small and medium-sized superconducting magnets cooled by liquid helium immersion, and Small and medium high temperature superconducting magnets cooled by liquid nitrogen, etc. [0003] Superconducting magnets need to operate at 4.5K (low-temperature superconductivity) or 77K (high-temperature superconductivity)...

AI Technical Summary

Problems solved by technology

[0005] (1) The invention patent application with the publication number CN110989359A proposed "a control system based on deep learning", which uses the model after deep learning to control the operation of superconducting magnets, but this method ignores a problem, deep learning requires a lot of normal Quench and quench operation data are used as sample data for model training, but superconducting magnets have a large amount of energy storage during operation, and each quench may cause damage to the magnet, and the operation of superconducting magnets generally does not allow quenching or try to Avoid quench operation, so it is difficult to obtain actual sample data, and requires a higher safety margin of the control system

[0006] (2) "Development of Superconducting Magnet Temperature Monitoring System in EAST Device" published on May 31, 2021 in the second series of Engineering Science and Technology. This article proposed a superconducting magnet low temperature monitoring system based on PLC and Lakeshore equipment, but the The system is only suitable for low temperature monitoring of EAST devices and is not applicable to other magnet systems

However, this system is also only suitable for the control of ECRH devices and is not universal

[0008] (4) "Design and Research on Diagnosis and Control System of CSMC Magnet Test Platform" published on June 1, 2020 in the second series of Engineering Science and Technology. This article proposes a distributed large-scale superconducting magnet operation monitoring system based on EPICS architecture. Due to The system is complex and not suitable for the operation control of small and medium-sized superconducting magnets

[0009] In summary, there are two problems in the current superconducting magnet operation monitoring system: (1) The system is a part of the superconducting magnet operation monitoring system or the system itself, and the system is customized according to the superconducting magnet, which has a good match with its target device (2) The coupling between modules in the system is serious, the modules are not replaceable, and the compatibility with new equipment is poor

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