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This paper deal with the problem of H∞ robust fault estimation for discrete time nonlinear system with a sector bounded nonlinear additive terms and multiple bounded state delay using the Takagi-Sugeno (T-S) fuzzy model. A fuzzy-fault estimation observer (FFEO) design is proposed to achieve fault estimation of T-S state delay models using fuzzy Lyapunov functions (FLF) with actuator and sensor faults...
The problems of H∞ robust fault tolerant control are studied for a class of nonlinear systems with uncertainties and time-varying delays. The T-S fuzzy model is employed to represent a nonlinear system, for the actuator fault of systems with disturbance, the actuator fault model is established, and the state feedback controller is designed. The sufficient conditions are given based on Lyapunov stability...
This paper addresses input-to-state stability (ISS) and integral ISS (iISS) redesign to enhance robustness of feedback control systems in the face of actuator disturbances. The idea of the redesign is to modify control laws available for disturbance-free systems a priori in order to achieve robustness against the disturbance. In practice, control system design often encounters time-delays, discontinuities...
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