17 research outputs found
Foreground-Region-Selection Algorithm for Detecting Moving Objects in Dynamic Background
A new approach to observer-based fault-tolerant controller design for Takagi-Sugeno fuzzy systems with state delay
This paper deals with the problem of active fault-tolerant control (FTC) for time-delay Takagi-Sugeno (T-S) fuzzy systems based on a fuzzy adaptive fault diagnosis observer (AFDO). A novel fuzzy fast adaptive fault estimation (FAFE) algorithm for T-S fuzzy models is proposed to enhance the performance of fault estimation, and sufficient conditions for the existence of the fault estimator are given in terms of linear matrix inequalities (LMIs). Using the obtained on-line fault estimation information, an observer-based fast active fault-tolerant controller is designed to compensate for the effect of faults by stabilizing the closed-loop system. Simulation results of a track trail system and a nonlinear numerical example are presented to illustrate the effectiveness of the proposed method.Ke Zhang, Bin Jiang, Peng Sh
Intelligent Fault Tracking by an Adaptive Fuzzy Predictor and a Fractional Controller of Electromechanical System – A Hybrid Approach
DNN identification and fault‐tolerant control for non‐linear systems with unknown faults
Finite-Time Gain-Scheduled Control on Stochastic Bioreactor Systems with Partially Known Transition Jump Rates
In this paper, an observer-based finite-time continuous gain-scheduled control
is designed for a class of stochastic bioreactor systems with partially known jump
rates. By using gradient linearization approach, the nonlinear stochastic systems are
described by a series of linear jump models at some selected working points, then
based on stochastic Lyapunov–Krasovskii functional approach, a new robust stochastic
finite-time stabilizable criterion is derived to ensure robust finite-time stabilization
of the each jump linear system by means of linear matrix inequalities. This method is
then extended to provide observer-based finite-time state feedback H∞ controllers for
such linear jump systems. Lastly, continuous gain-scheduled approach is employed
to design observer-based continuous H∞ controllers for the whole bioreactor jump
systems. Simulation examples show the effectiveness and potential of the developed
techniques