摘要
为了解决磁悬浮列车的车轨耦合振动问题,以磁悬浮列车最基本的单元"单磁铁悬浮系统"为研究对象,提出了一种基于降维观测器的状态反馈最优控制方法,并在搭建的附带弹性轨道梁的单磁铁悬浮试验台上得到了有效验证。研究结果表明,该控制方法采用降维观测器能够准确快速地对系统进行状态估值,效果良好,结构简单,易于在工程上实现;在不考虑轨道梁的阻尼衰减作用时该控制方法仍能使系统迅速稳定,能够有效抑制磁悬浮列车的车轨耦合振动问题,降低系统的稳定性对轨道梁刚度的要求,减少磁浮交通的建设成本。
In order to solve the problem of vehicle-guideway coupling vibration,a full-state feedback optimal control method based on reduced-order observer was proposed,which took the single magnet-guideway coupling vibration system as the research object,and had been validated effectively on a small-scale test rig.The results showed that the reduced-order observer could accurately and rapidly estimate the state of the system with good effect,and had simple structure and easy to be realized in engineering.The control method could still make the system stable without considering the damping effect of the track beam,and effectively restrain the coupling vibration.Moreover,it reduced the requirement of the stability of the system for the rigidity of the track beam,and greatly reduced the construction cost of the maglev traffic.
作者
汪徐江
王兴远
许承焯
沈钢
Wang Xujiang;Wang Xingyuan;Xu Chengzhuo;Shen Gang(Insititute of Rail Transit,Tongji University,Shanghai 201804,China)
出处
《机车电传动》
北大核心
2019年第6期78-82,共5页
Electric Drive for Locomotives
关键词
磁悬浮列车
车轨耦合振动
降维观测器
最优控制
仿真
maglev train
vehicle-guideway coupling vibration
reduced-order observer
optimum control
simulation
