基于观测器的一类模糊时滞系统的容错控制  

Fault-tolerant Observer-based Control for a Class of Fuzzy Time-delay Systems With Sensor Failures

作　　者：张伟[1] 佟绍成[1] 

机构地区：[1]辽宁工业大学理学院,辽宁锦州121001

出　　处：《模糊系统与数学》2013年第1期104-112,共9页Fuzzy Systems and Mathematics

基　　金：国家自然科学基金资助项目(61074014);辽宁省高校创新团队项目(LT2012013)

摘　　要：针对一类带有传感器故障的模糊时滞系统,提出了一种实现对系统的状态和传感器故障估计的观测器设计方法。在此基础上,给出了模糊容错控制方法及保证模糊控制系统的渐近稳定充分条件。应用广义Lyapunov函数和线性矩阵不等式方法,证明了模糊闭环时滞系统的渐近稳定性。仿真结果进一步验证了所提出的方法和条件的有效性。A fuzzy observer design approach is presented for fuzzy time-delay systems with sensor faults. A novel state and sensor fault observer is proposed to estimate system states and sensor faults simultaneously. On this basis, the fuzzy fault-tolerant control approach and the sufficient conditions of ensuring the stability of the fuzzy systems are given. The stability of the fuzzy closed-loop time-delay systems is proved by using generalized Lyapunov function theory combining with linear matrix inequalities （LMIs）. Simulation results demonstrate the effectiveness of the proposed approach and conditions.

关 键 词：模糊时滞系统 容错控制 稳定性条件 线性矩阵不等式 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]