文章基本信息

标题：Magnetic Suspension System with Large Distance of 82 mm Using Persistent Current in Superconducting Coil
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作者：Mochimitsu Komori ; Shun Imada ; Kaoru Nemoto 等
期刊名称：Actuators
电子版ISSN：2076-0825
出版年度：2022
卷号：11
期号：2
页码：48
DOI：10.3390/act11020048
语种：English
出版社：MDPI Publishing
摘要：Superconducting techniques are applied to a superconducting magnetic suspension system. A superconducting coil, copper coils, a magnetically suspended object, a photo sensor, a PID controller, and power amplifiers are the main components of the suspension system. A persistent current in the superconducting coil and a control current in the copper coils are used for suspending the object and controlling the object, respectively. This paper discusses a large gap trial for the suspension system, and the static and dynamic characteristics of the suspension system are studied. As a result, it is found that the magnetically suspended object continues to be suspended at a distance of 82 mm for more than 60 s. Since a superconducting persistent current has a maximum limit for the suspension system, a persistent current of 50 A is adopted. The details of the superconducting persistent current are studied for the performance of the suspension system. There are few reports about such a suspension system with a large gap of more than 80 mm using a superconducting persistent current.