Observer based finite-time fault-tolerant control for switched stochastic systems

Abstract

The thesis recommends the finite-time fault-tolerant control issues which occurs in a switched stochastic linear system with actuator fault. An ingenious method is put forward to take stock of the system state and actuator fault at the same time by designing an intermediate variable observer, so as to achieve the desired effect. Then, the fault-tolerant controller is put forward through the previously involved observer, which can reduce the impact of the fault and stabilize the system. In view of the ADT and the LMI technique, the sufficient condition is obtained to ensure the finite-time stochastically bounded of the systems.