考虑传感器故障的导弹姿态控制系统主动容错控制研究  

Research on active fault-tolerant control for sensor failures of missile attitude control systems

作　　者：曹祥宇[1] 胡昌华[1] 马清亮[1] 

机构地区：[1]第二炮兵工程学院302教研室,西安710025

出　　处：《控制与决策》2012年第3期379-382,388,共5页Control and Decision

基　　金：国家杰出青年科学基金项目(61025014);国家自然科学基金项目(60736026)

摘　　要：针对导弹姿态控制系统惯性传感器故障,提出了基于信号重构的主动容错控制方法.分别利用基于梯形算法的数值积分器和有限时间收敛微分器对姿态角信号和角速率信号进行重构,当在线诊断出姿态角或角速率传感器故障时,以重构信号代替故障信号进行反馈控制来实现系统的主动容错控制.在建立导弹姿态控制系统模型并采用次最优控制方法设计输出反馈控制器的基础上,对所设计的主动容错控制方法进行仿真,仿真结果表明该方法是有效的.An approach of active fault-tolerant control based on signal reconfiguration is proposed for the fault of missile attitude control systems caused by failed inertial sensors： To realize the active fault-tolerant control of missile attitude control systems, numerical integrator based on trapezoid algorithm and finite-time-convergent differentiator are used to reconfigure attitude angle signals and angular rate signals, and fault signals are substituted for reconfiguration signals, when the failure of attitude angle sensor or angular rate sensor is detected through online diagnosis. Based on establishing a model of missile attitude control system and designing an output feedback controller by adopting suboptimal control method, simulation is carried out and the result shows the effectiveness of the proposed approach.

关 键 词：姿态控制系统 主动容错控制 积分器 微分器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]