高温超导磁悬浮系统可控特性研究  

On the Controllability of High Temperature Superconducting Magnetic Suspension Systems

作　　者：邢华伟[1] 周彤[1] 

机构地区：[1]清华大学自动化系,北京100084

出　　处：《电气自动化》2004年第4期22-24,共3页Electrical Automation

基　　金：清华大学基础研究基金(JC2002025);教育部优秀青年教师资助计划;教育部跨世纪优秀人才培养计划;国家自然科学基金(60174022)

摘　　要：本文利用实验装置研究高温超导磁体在磁悬浮系统中应用的可能性。通过一个简单的高温超导磁悬浮实验系统,证明了以高温超导线材(Bi系)绕制的磁体可以实现稳定的悬浮控制。同时,通过合理的控制器设计,闭环系统可以实现很强的对负载变化的鲁棒性。这些都为高温超导线材在磁悬浮系统中的应用打下了基础。In this paper, a simple experimental system is build to investigate the applicability of high temperature superconducting electro-magnets to magnetic suspension systems. Based on the experiments, it is proved that high temperature superconducting electro-magnets can be stably suspended. It is also found that through appropriate controller synthesis, the closed-loop system has good performance in robustness against load variations. Compared with ordinary electro-magnets, high temperature superconducting electro-magnetic suspension systems have some remarkably different behaviors, viz, the output of the controller has fairly large step form variations even when the system is stably suspended and significant external disturbances do not exist. This phenomenon implies that further researches are required in order to develop a commercial system.

关 键 词：高温超导磁体 磁悬浮 控制特性 可控性 鲁棒性 

分 类 号：TP271.4[自动化与计算机技术—检测技术与自动化装置]