Fault-tolerant Output Feedback Control for a Class of Multiple Input Fuzzy Bilinear Systems
Yu Yan · Gongcheng shuxue xuebao · 2015
In this paper,a fuzzy fault-tolerant control approach is proposed for a class of multiple input fuzzy bilinear systems with immeasurable states.First of all,a fuzzy detective observer is designed to detect the fault.Based on the developed detective observer,a fuzzy controller is proposed to guarantee the closed-loop system without faults is asymptotically stable.Then,a fuzzy adaptive diagnostic observer is developed to estimate the fault.Finally,the fault estimation is applied to fault accommodation and a fault-tolerant controller is designed.Based on Lyapunov stability,it is proved that the fault-tolerant controller ensures the closed-loop system with faults is asymptotically stable.An example is presented to show the effectiveness of the proposed control method.