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Robust fault‐tolerant control for discrete‐time switched systems with time delays
Author(s) -
Telbissi Kenza,
Benzaouia Abdellah
Publication year - 2020
Publication title -
international journal of adaptive control and signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 66
eISSN - 1099-1115
pISSN - 0890-6327
DOI - 10.1002/acs.3091
Subject(s) - control theory (sociology) , discrete time and continuous time , observer (physics) , actuator , linear matrix inequality , fault tolerance , lyapunov function , fault (geology) , computer science , function (biology) , mathematics , control (management) , mathematical optimization , distributed computing , statistics , physics , nonlinear system , artificial intelligence , evolutionary biology , seismology , biology , geology , quantum mechanics
Summary This study outlines the problem of active fault‐tolerant control for delayed discrete‐time switched systems. Using switched proportional‐integral observer and multiple Lyapunov‐Krasovski function, less conservative sufficient conditions are established to design a robust fault estimation (FE) algorithm via linear matrix inequality form. Afterward, a fault‐tolerant performance is realized based on this fast and exact FE information to compensate the effect of actuator fault while stabilizing the closed‐loop system. The efficiency of the proposed strategy is proved through simulation examples and comparison results.