基于状态观测器的磁悬浮列车传感器故障容错方法  

Sensor Fault Tolerance Method for Maglev Train Based on State-observer

作　　者：张志洲[1] 李晓龙[1] 龙志强[1] 

机构地区：[1]国防科技大学磁悬浮技术工程研究中心,湖南长沙410073

出　　处：《机车电传动》2008年第4期39-42,共4页Electric Drive for Locomotives

基　　金：国家自然科学基金项目(批准号:60404003);国基金项目:家科技支撑计划(2006BAG02B05)

摘　　要：针对磁悬浮列车的加速度计或间隙传感器故障,设计了基于状态观测器的最优容错控制系统。首先建立了单电磁铁悬浮系统的模型,引入电流环降低系统阶数,然后按照标称闭环系统模型设计在线状态观测器。当单个传感器失效时,根据故障诊断系统提供的故障定位信息,实时采用状态观测器提供的状态估计信息,最终对单个传感器故障实现容错。仿真表明该方法的有效性。For the accelerator meter or gap sensor failures of maglev vehicle, the optimized fault tolerance control system is designed based on state observer. The model of single-magnet system is built first and system steps are reduced via introduction of current ring. Then designed is the on-line state observer based on rated closed-loop system. In case of one single sensor fault, according to the failure positioning information from the fault diagnosis system, the state estimate information from the state observer will be applied in real time and then fault tolerance would be realized for single sensor fault. The simulation indicates the effectiveness of the method.

关 键 词：磁悬浮列车 悬浮系统 状态观测器 传感器 最优控制 容错控制 

分 类 号：U292.917[交通运输工程—交通运输规划与管理] TP212[交通运输工程—道路与铁道工程]