摘要
对于电磁吸浮型磁浮列车,悬浮控制是其关键部分,由于该系统的非线性和不稳定性,需要通过主动控制使其稳定悬浮。建立了磁悬浮列车悬浮系统模型,针对模型的非线性问题,采用精确反馈线性化将悬浮系统的非线性模型线性化,然后用闭环增益成形算法设计出非线性鲁棒控制器。用MATLAB的Simulink对具有扰动的非线性模型进行仿真,仿真结果表明控制效果没有静差和超调,调节时间快。
Due to the inherent nonlinearities and instability of the electromagnetic suspension system,suspension control is key point.So it is needed active control in order to keep steady suspension.The nonlinear mathematical model of suspension sys- tem is linearized through exact feedback linearization,then a nonlinear robust controller is designed using closed-loop gain shaping algorithm.For the nonlinear model with the disturbance,simulation research is carried out using Simulink of Matlab. Simulation results show that the control effects can reach rapid settling time without overshot steady-state error.
出处
《工业控制计算机》
2014年第3期89-90,共2页
Industrial Control Computer
关键词
非线性数学模型
闭环增益成形
精确反馈线性化
nonlinear mathematical model,closed-loop gain shaping,exact feedback linearization.
