Fault-tolerant control for a class of non-linear systems with dead-zone

作者：Chen, Mou^*; Jiang, Bin; Guo, William W.

来源：International Journal of Systems Science, 2016, 47(7): 1689-1699.

DOI：10.1080/00207721.2014.945984

• non-linear systems
• fault estimator
• state observer
• fault-tolerant control
• tracking control

In this paper, a fault-tolerant control scheme is proposed for a class of single-input and single-output non-linear systems with the unknown time-varying system fault and the dead-zone. The non-linear state observer is designed for the non-linear system using differential mean value theorem, and the non-linear fault estimator that estimates the unknown time-varying system fault is developed. On the basis of the designed fault estimator, the observer-based fault-tolerant tracking control is then developed using the backstepping technique for non-linear systems with the dead-zone. The stability of the whole closed-loop system is rigorously proved via Lyapunov analysis and the satisfactory tracking control performance is guaranteed in the presence of the unknown time-varying system fault and the dead-zone. Numerical simulation results are presented to illustrate the effectiveness of the proposed backstepping fault-tolerant control scheme for non-linear systems.

• 出版日期2016-5-18
• 单位南京航空航天大学