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.
出处
《模糊系统与数学》
CSCD
北大核心
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)
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
Fuzzy Time-delay Systems Fault-tolerant Control Stability Conditions Linear MatrixInequality