考虑电磁铁故障的磁浮列车单悬浮模块的容错控制

本文针对参数具有不确定性的磁浮列车单模块悬浮系统,利用线性矩阵不等式(LMI)方法,设计了对执行器失效具有完整性的容错控制器.同时考虑到工程实际的需要,引入权重概念对控制律进行修改,并利用数值方法对新控制律作用下闭环系统的稳定性进行验证.对不同执行器故障模式下悬浮间隙的变化进行了仿真分析,结果表明该方法对闭环系统的参数不确定性具有鲁棒性,对部分执行器失效具有容错能力.

Fault tolerant control on single suspension module of maglev train with electromagnet failure

A fault-tolerant controller is designed based on linear matrix inequality approach for single suspension module of Maglev train with parameters uncertainty and electromagnet failures. The conception of weight is adopted to modify the control law for the actual project requirements, and the stability of the close-loop system is then verified. The gap variation with different actuator failures is also simulated. The conclusions show that the close-loop system can adapt the parameters' uncertainty and some actuator failures.