Journal
AUTOMATICA
Volume 50, Issue 7, Pages 1825-1834Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.automatica.2014.04.006
Keywords
Stochastic system; Markovian parameters; Fault tolerant control; Sensor fault; Actuator fault; Sliding mode observer
Funding
- National Natural Science Foundation of China [61333012, 61273201, 61203002, 61203123, 61020106003]
- Program for New Century Excellent Talents in University [NCET-13-0696]
- NKTSP [2012BAF19G00]
- Key Laboratory of Integrated Automation for the Process Industry
- Northeast University
- 111 Project [B08015, B12018]
- Australian Research Council [DP140102180]
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This paper is concerned with the stabilization problem for a class of Markovian stochastic jump systems against sensor fault, actuator fault and input disturbances simultaneously. In the proposed approach, the original plant is first augmented into a new descriptor system, where the state vector, disturbance vector and fault vector are assembled into the state vector of the new system. Then, a novel augmented sliding mode observer is presented for the augmented system and is utilized to eliminate the effects of sensor faults and disturbances. An observer-based mode-dependent control scheme is developed to stabilize the resulting overall closed-loop jump system. A practical example is given to illustrate the effectiveness of the proposed design methodology. (C) 2014 Published by Elsevier Ltd.
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