摘要
研究了范数有界参数扰动的不确定线性系统的鲁棒容错控制问题.基于Lyapunov稳定性理论,针对不确定线性系统存在执行器失效情况,给出了闭环系统具有完整性的一个充分条件.应用Riccati不等式和LMI(线性矩阵不等式)2种方法给出了线性不确定系统对执行器失效具有容错性和完整性的设计步骤.最后给出了一个仿真算例,以验证所给设计方法的有效性和简单性.
This paper is concerned with the robust fault-tolerant control for a class of uncertain linear systems with norm-bounded parameters perturbations. As for the fault actuator of uncertain systems, based on Lyapunov asymptotic stability theory,a sufficient condition is given for closed-loop systems possessing integrity. By means of Riccati inequality and LMI （linear matrix inequality） respectively, design methods of controller for uncertain linear system possessing integrity against actuator failure are presented. Finally, an example is given and simulation results show the effectiveness and simplicity of the method provided.
出处
《兰州交通大学学报》
CAS
2005年第4期82-84,共3页
Journal of Lanzhou Jiaotong University
关键词
容错控制
完整性
鲁棒性
执行器失效
不确定性
fault-tolerant control
integrity
robustness
actuator failures
uncertainty
