Abstract:

The adaptive faulttolerant control on the uncertain  nonlinear system was studied. A new adaptive faulttolerant controller was designed to asymptotically stabilize the closeloop system based on a robust adaptive observer by constructing a novel Lyapunov function under the condition of without the knowledge of upper bounds of the nonlinear  function, the external disturbance, the modeling uncertainty and the unknown fault input. A case numerical example illustrated the effectiveness and superiority of the proposed method.

Key words: automatic control technology, uncertain nonlinear system, faulttolerant control, adaptive control, observer