Premium
Fault tolerant control with disturbance rejection and attenuation performance for systems with multiple disturbances
Author(s) -
Cao Songyin,
Guo Lei,
Wen Xinyu
Publication year - 2011
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.267
Subject(s) - control theory (sociology) , attenuation , disturbance (geology) , fault tolerance , nonlinear system , bounded function , controller (irrigation) , norm (philosophy) , engineering , fault (geology) , control engineering , scheme (mathematics) , control (management) , computer science , mathematics , law , reliability engineering , artificial intelligence , physics , geology , optics , paleontology , mathematical analysis , agronomy , quantum mechanics , seismology , political science , biology
It is difficult to diagnose and accommodate the faults if disturbances and faults exist simultaneously in the controlled plants. In this paper, an anti‐disturbance fault tolerant control (FTC) scheme is presented for a class of nonlinear systems with both faults and multiple disturbances. The multiple disturbances are supposed to include two types including the uncertain modeled disturbances and norm bounded uncertain disturbances. A composite fault tolerant controller is constructed by integrating a fault accommodation from diagnosis observer with additional disturbance rejection and attenuation performance for two different types of disturbances. As a result, the fault can be accommodated and the multiple disturbances can be rejected and attenuated simultaneously. Simulations for a flight control system are given to show the efficiency of the proposed approach.Copyright © 2010 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society