Adaptive fault estimation observer design for switched systems with actuator and sensor faults

摘要

In this paper, the problem of fault estimation for continuous-time switched system with actuator and sensor faults is investigated. Firstly, based on the average dwell-time method and switched Lyapunov function, a fault estimation observer is designed for the augmented switched system, which can ensure that the error system is asymptotically stable with an H∞ performance index. Next, an algorithm is proposed to realize fault estimation accurately. Finally, an example is given to illustrate the effectiveness of the designed methods.