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基于新稳定条件的非线性系统的容错控制
Fault-Tolerant Control for Nonlinear Systems Based on A New Stability Condition
【摘要】 研究了非线性系统中部分执行器可能失效的T-S模糊系统的容错控制问题。基于新的稳定性条件,采用线性矩阵不等式的方法,得出了系统在执行器故障时控制器存在的充分条件。在此条件下所设计的控制器,不仅使闭环系统渐近稳定而且具有适当的性能指标。仿真结果表明了该方法的有效性。
【Abstract】 The problems of fault-tolerant control for T-S fuzzy system with possible actuator failure were studied.Based on the new stability condition,a sufficient condition for the existence of fault-tolerant controller was given by using the method of LMI while actuators were of fault.Under the condition,the designed controller not only provided the asymptotical stability of the closed-loop system but also guaranteed the performance at an adequate level.The simulation results expatiated the validity of this method.
【关键词】 非线性系统;
新稳定条件;
执行器故障;
容错控制;
线性矩阵不等式;
【Key words】 nonlinear systems; new stability condictions; actuator fault; fault-tolerant control; linear matrix inequation;
【Key words】 nonlinear systems; new stability condictions; actuator fault; fault-tolerant control; linear matrix inequation;
【基金】 国家自然科学基金资助项目(60674056)
- 【文献出处】 辽宁工业大学学报 ,Journal of Liaoning University of Technology , 编辑部邮箱 ,2008年02期
- 【分类号】TP13
- 【下载频次】82