Fault-Tolerant Control for Markovian Jump Delay Systems with an Adaptive Observer Approach

作者：Chen, Liheng; Huang, Xianlin^*; Fu, Shasha

来源：Circuits, Systems, and Signal Processing, 2016, 35(12): 4290-4306.

DOI：10.1007/s00034-016-0277-8

• Fault estimation
• Fault-tolerant control
• Adaptive fault observer
• Markovian jump system
• Time-varying delay
• Lipschitz nonlinearity

This paper investigates the problem of fault estimation and fault-tolerant control for a class of Markovian jump systems with mode-dependent interval time-varying delay and Lipschitz nonlinearities. In this paper, a new adaptive fault observer is designed to solve the problem of fault estimation. The proposed observer can estimate the states and faults simultaneously, whether faults are of time-varying or constant characterization. Based on the fault estimation, a fault-tolerant controller is designed to stabilize the closed-loop system. Sufficient conditions for the existence of the observer gain and fault-tolerant controller gain are got by a set of linear matrix inequalities. Finally, a numerical example is presented to illustrate the effectiveness of the proposed fault-tolerant control method.

• 出版日期2016-12
• 单位哈尔滨工业大学