磁悬浮球系统的变结构控制

Variable Structure Control of A Magnetic Levitation System

磁悬浮球系统是一种典型的非线性、不稳定性系统。本文根据变结构控制理论,设计了一个动态变结构控制器,该控制器能够保证磁悬浮球系统的各个状态逐渐趋近于设计值。同时利用Modelica对磁悬浮球系统进行建模仿真,仿真结果表明磁悬浮球的变结构控制系统具有很好的动态性能和很强的鲁棒性。

Magnetic levitation system is characterized by its instability, nonlinearity. In this paper, a Variable Structure Controller is designed. The proposed controller guarantees the asymptotic stability of the system. This paper also gives a simulation model of the magnetic levitation system by using Modelica. Results show that the dynamic properties of the system are upstanding and robust.