摘要
研究一类不确定时滞系统的鲁棒容错控制问题。针对既有状态滞后,又有控制输入滞后,且假定状态和控制输入的不确定项均是范数有界的线性系统,通过引入无记忆状态反馈控制器,基于Lyapunov稳定性理论和LMI方法,给出了一个在传感器完全失效或执行器完全失效故障情况下具有鲁棒容错性能的充分条件,并用求解线性矩阵不等式组方便地得到容错控制器设计结果。最后用算例验证了该设计方法的有效性和可行性。
The problem of robust fault-tolerant control for the uncertain time-delay system was studied. The considered system has time-delay in both state and control input, and the admissible parameter uncertainties of state and control input are unknown but norm bounded. Based on Lyapunov stability theory and Linear Matrix Inequality （LMI）, a method of robust fault-tolerant control against sensor or actuator failures for uncertain systems was proposed via memoryless state feedback control law. The sufficient conditions for the closed-loop system possessing integrity against sensor or actuator failures were given. The results of fault-tolerant controller could be involved by solving several Linear matrix inequalities. Finally, an example was given to demonstrate the proposed approach＇s effectiveness and feasibility.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2007年第24期5782-5785,共4页
Journal of System Simulation
基金
甘肃省自然科学基金项目(3ZS051-A25-032)
甘肃省教育厅高等学校研究生导师科研项目(050301)。
