Integrated fault diagnosis and fault-tolerant control of nonlinear network control systems

A new integrated fault diagnosis and fault tolerant control algorithm of non-linear networked control systems is proposed in this paper. A Laplace transform strategy is used to analyze the random time delay problem. Besides, a new fault diagnosis algorithm based on learning observer is designed. Then, based on the fault diagnosis information, a new state feedback fault-tolerant controller is designed, which can ensure that the output of the post-fault system can still track the given target. Finally, a single-link robot is taken as an example for the numerical simulation. The simulation results show the effectiveness of the proposed method.