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|Title:||Fault accommodation for near space vehicle attitude dynamics via T-S fuzzy models|
|Citation:||International Journal of Innovative Computing, Information and Control, 2010; 6(11):4843-4856|
|Zhifeng Gao, Bin Jiang, Peng Shi and Yufei Xu|
|Abstract:||Based on both adaptive and sliding mode control techniques, this paper pro- poses an integrated approach to fault detection, estimation and fault-tolerant control for near space vehicle (NSV) attitude dynamics during re-entry phase. Firstly, the Takagi and Sugeno (T-S) fuzzy model is employed to approximate complex nonlinear NSV dy- namics with actuator faults. Then, an adaptive fault diagnostic observer is proposed for detecting and estimating the actuator faults. Using the on-line obtained fault informa- tion, the fault tolerant control scheme based on the sliding mode technique is developed to compensate for the effects of actuator fault by stabilizing the closed-loop control sys- tem. Finally, simulation results are given to show the effectiveness and potential of the proposed techniques when different actuator fault scenarios are tested.|
|Keywords:||Adaptive diagnostic observer; Near space vehicle (NSV); Fault-tolerant control; Sliding mode technique|
|Rights:||ICIC International © 2010|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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