【摘要】 针对一类状态不完全可测的不确定非线性系统,研究了带有执行器故障的容错控制问题。采用T-S模型对非线性系统进行模糊建模,利用并行分布补偿(PDC)算法设计了状态观测器和基于状态观测器的容错控制,给出了保证该模糊容错控制系统稳定的充分条件。根据李雅普诺夫稳定性理论和线性矩阵不等式(LMI),证明了所提出的模糊容错控制方法不但使得模糊控制系统渐近稳定,而且能够取得H∞性能指标。计算机仿真结果进一步验证了所提出方法的正确性。更多还原

【Abstract】 This paper studies fuzzy tolerant-fault control for a class of(T-S) continuous fuzzy systems with actuator failures.The T-S fuzzy model is adopted for fuzzy modeling of the nonlinear system,and the state observer and output feedback tolerant-fault controller are designed by using parallel distributed compensation(PDC) method.The sufficient conditions that ensure the stability of fuzzy fault tolerant control system are given via Lyapunov stability theory and LMI method.Simulation examples are given to illustrate the effectiveness of the proposed control approach.更多还原