Observer-based robust fuzzy control of nonlinear systems with parametric uncertainties
Fuzzy Sets and Systems - Modeling and control
Technical communique: Observer-based H∞ fuzzy control design for T-S fuzzy systems with state delays
Automatica (Journal of IFAC)
Robust Fuzzy Fault -Tolerant Control for Nonlinear Systems
ICICIC '08 Proceedings of the 2008 3rd International Conference on Innovative Computing Information and Control
FUZZ-IEEE'09 Proceedings of the 18th international conference on Fuzzy Systems
International Journal of Automation and Computing
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
A Descriptor System Approach to Fuzzy Control System Design via Fuzzy Lyapunov Functions
IEEE Transactions on Fuzzy Systems
New approaches to H∞ controller designs based on fuzzy observers for T-S fuzzy systems via LMI
Automatica (Journal of IFAC)
IEEE Transactions on Fuzzy Systems
Hi-index | 0.00 |
This paper deals with the problem of the state estimation and the sensor faults detection for nonlinear perturbed systems described by Takagi-Sugeno (T-S) fuzzy models with unmeasurable premise variables. Indeed, a T-S observer is synthesized, in descriptor form, to estimate both the system states and the sensor faults simultaneously. The idea of the proposed approach is to introduce the sensor fault as an auxiliary variable in the state vector. Besides, the T-S model with unmeasurable premise variables is reduced to a perturbed model with measurable variables. Convergence conditions are established with Lyapunov theory and the H 驴 performance in order to guarantee the best robustness to disturbances. These conditions are expressed in terms of linear matrix inequalities (LMIs). The parameters of the observer are computed using the solution of the LMI conditions. Finally, a numerical example is given to illustrate the design procedures. Simulation results show the satisfactory performances.