Superconducting magnet quench detection method, device and equipment and storage medium

Abstract

The application discloses a quench detection method, device and equipment for a superconducting magnet and a storage medium. According to the application, exciting currents re set in a segmented manner according to a preset current rising method; standard magnet loop resistance values corresponding to different exciting currents are calculated; fitting is carried out according to different exciting currents and the corresponding loop resistance values of the standard magnet to obtain a change curve of the loop resistance of the magnet along with the exciting currents; fitting of a protection action set value curve is performed according to the change curve; whether the current magnet loop resistance value is greater than a protection action set value corresponding to the current exciting current or not is determined; or whether the difference between the current magnet loop resistance value and a historical magnet loop resistance value is greater than a preset threshold value or not isdetermined; and if so, a quench backup protection action is triggered. Quench detection and quench backup protection are achieved through an excitation system of the superconducting magnet, and the technical problem that quench detection cost is increased due to the fact that a hardware detection loop and detection equipment need to be additionally arranged when quench detection is conducted through a voltage instrument in the prior art is solved.

Description

technical field [0001] The present application relates to the field of superconducting technology, in particular to a quench detection method, device, equipment and storage medium of a superconducting magnet. Background technique [0002] The superconducting current limiter is a short-circuit current limiting device. When a short-circuit fault occurs, it can quickly limit the short-circuit current to an acceptable level, so as to avoid the short-circuit current in the power grid from causing major harm to the safe and stable operation of the power grid and electrical equipment. ;The superconducting condenser is a reactive power compensation device. In the event of voltage sag and other faults, the superconducting condenser can respond quickly and output reactive power to support voltage recovery. Both devices can greatly improve the stability of the power grid , Improve the reliability and security of power supply. The core components of this equipment include superconducti...

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Problems solved by technology

[0004] The present application provides a quench detection method, device, equipment and storage medium for a superconducting magnet, which is used to solve the problem that the existing quench detection through a voltage meter requires an additional hardware detection circuit and detection equipment, thereby increasing the quench Technical Issues Over Detection Costs

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