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研究了一类带有执行器故障的T-S模糊系统的容错跟踪控制问题。设计中,把模糊控制与自适应控制相结合,提出了一种新的容错控制方法。该控制器由正常控制器和一个自适应控制器组成,能够使得闭环系统稳定,故障状态模型渐近跟踪正常模型,并获得优化的控制性能。应用Lyapunov函数和线性矩阵不等式方法,给出和证明了带有执行器故障的T-S模糊系统的稳定的充分条件。仿真结果进一步验证了所提出的方法的有效性。
A fault-tolerant tracking control problem for a class of T-S fuzzy systems with actuator failures is studied. In the design, the fuzzy control and adaptive control are combined to propose a new fault tolerant control method. The controller consists of a normal controller and an adaptive controller, which can make the closed-loop system stable. The fault state model asymptotically tracks the normal model and obtains the optimized control performance. The sufficient and sufficient conditions for the stability of T-S fuzzy systems with actuator failures are given and proved by using Lyapunov function and linear matrix inequality. Simulation results further verify the effectiveness of the proposed method.