OBSERVER BASED FAULT-TOLERANT CONTROL FOR FUZZY SYSTEMS WITH SENSOR AND ACTUATOR FAILURES

This paper proposed an observer based fault-tolerant control approach for the fuzzy T-S systems with sensors and actuators faults. By establishing the actuator fault and sensor fault models, art observer based fuzzy output feedback fault tolerant controller is developed and new stabilization conditions of the fuzzy fault tolerant control systems are given, which are formulated in terms of linear matrix inequalities (LMIs). The LMIs can be efficiently solved using the convex optimization techniques. It is shown that the proposed fuzzy fault-tolerant control approach can guarantee the stability of the closed-loop System in the event of the actuator and sensor failures. Numerical simulation example is given to illustrate the effectiveness of the proposed design method.