基于单电磁铁的悬浮系统自适应控制研究  

Research on the Adaptive Control of the Suspension System Based on the Single Electrical Magnetic

作　　者：朱付景[1] 李杰[1] 

机构地区：[1]国防科学技术大学磁悬浮技术研究中心,湖南长沙410073

出　　处：《计算技术与自动化》2007年第4期17-21,共5页Computing Technology and Automation

基　　金：国家自然科学基金(60404003);霍英东教育基金会青年教师优选资助课题(9428)

摘　　要：悬浮控制是磁悬浮列车中的一项关键技术,传统的PID控制在悬浮控制中的应用很广泛,但是,这种方法不能很好地实现控制器参数的在线调整。本文研究基于单电磁铁的悬浮系统自适应控制方案,实现悬浮系统的稳定工作。根据电磁铁的动力学方程和电磁线圈的电压平衡方程,建立悬浮系统的数学模型。采用串级控制的方法,设计电流环控制器和位置环控制器,其中位置环控制器采用PD增益自适应调节的模型参考自适应控制方法。仿真结果表明,这种控制方法对有效地减少电流的滞后效应,实现控制器参数的自适应调整,具有一定的使用价值。The suspension control is the key technology of the maglev train vehicle, and PID control is abroadly used in the suspension control,but this method can＇t adjust the controller parameters on- line, In this paper the adaptive control scheme was studied based on the single electrical magnetic suspension system, and the stable levitation of the suspension system was realized. Based on the electromagnet dynamics description and voltage balance equations of the electromagnet coil, the magnetic suspension system model was found, Using the cascade control method, the current loop controller and the position loop controller are designed, while in the position loop , the Model Reference Adaptive Control（MRAC） was applied, which realizes the PD gain adjusted adaptively, The simulation experiment shows this control method can reduce the lag of the current effectively and adjust the parameters of the controller adaptively, therefore, have some value to use.

关 键 词：磁悬浮系统 电流环 自适应控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]